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Spectra C-561 Ignition Coil
| Brand | Spectra C-561 |
|---|---|
| Fits | Chevrolet, GMC, Hummer, Cadillac, and Workhorse · 282 vehicles |
Premium copper construction. Built with premium-grade copper for reliable ignition performance.
Engineered to high standards. Developed with careful engineering for consistent operation.
Cross-references Delphi GN10298, WAI CUF271 and 5C1083 for the same application. See all 25.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Spectra C-561 Ignition Coil
The Spectra C-561 ignition coil is a direct replacement for a wide range of GM trucks, SUVs, and vans from 1999-2007. Built with premium-grade copper and engineered to meet high manufacturing standards, it supports consistent spark delivery for everyday drivability.
- Premium-grade copper construction
- OE-style ignition coil replacement for cylinder-head mounting applications
- Direct fit for many Chevrolet, GMC, Cadillac, Hummer, and Pontiac models
- Cross-references Delphi GN10298 for the same application
- Part number: C-561
Fitment Coverage
- Fits 2007 Chevrolet Silverado 1500 Classic, ignition coil mounts to cylinder head; with Mitsubishi design
- Fits 2007 Chevrolet Silverado 1500 HD Classic, ignition coil mounts to cylinder head as square type
- Fits 2001-2007 Chevrolet Silverado 2500 HD, ignition coil mounts to cylinder head as square type
- Fits 2007 Chevrolet Silverado 2500 HD Classic, directly mounts onto cylinder head
- Fits 2007 Chevrolet Silverado 2500 HD Classic, ignition coil mounts to cylinder head using a circular design
- Fits 2001-2007 Chevrolet Silverado 3500, ignition coil mounts to cylinder head as square type
- Fits 2007 Chevrolet Silverado 3500 Classic, directly mounts onto cylinder head
- Fits 2007 Chevrolet Silverado 3500 Classic, ignition coil mounts to cylinder head as square type
- Fits 2007 Chevrolet Silverado 3500 HD, ignition coil mounts to cylinder head as square type
- Fits 1999-2007 GMC Sierra 1500, ignition coil mounts to cylinder head as square type
- Fits 2007 GMC Sierra 1500 HD Classic, ignition coil mounts to cylinder head as square type
- Fits 2001-2007 GMC Sierra 2500 HD, ignition coil mounts to cylinder head as square type
- Fits 2007 GMC Sierra 2500 HD Classic, ignition coil mounts to cylinder head as square type
- Fits 2007 GMC Sierra 3500 Classic, ignition coil mounts to cylinder head as square type
- Fits 2007 GMC Sierra 3500 HD, ignition coil mounts to cylinder head as square type
- Fits 2003-2007 Hummer H2, ignition coil mounts to cylinder head as square type
- Fits 2002-2006 Cadillac Escalade, ignition coil mounts to cylinder head as square type
- Fits 2003-2006 Cadillac Escalade ESV, ignition coil mounts to cylinder head as square type
- Fits 2002-2006 Cadillac Escalade EXT, ignition coil mounts to cylinder head as square type
- Fits 2002-2006 Chevrolet Avalanche 1500, ignition coil mounts to cylinder head as square type
- Fits 2003-2006 Chevrolet Avalanche 2500, ignition coil mounts to cylinder head as square type
- Fits 2003-2006 Chevrolet Express 1500, ignition coil mounts to cylinder head as square type
- Fits 2006 Chevrolet Monte Carlo, ignition coil mounts to cylinder head as square type
- Fits 1999-2006 Chevrolet Silverado 1500, ignition coil mounts to cylinder head as square type
- Fits 2005-2006 Chevrolet Silverado 1500 HD, ignition coil mounts to cylinder head as square type
- Fits 2001-2003 Chevrolet Silverado 1500 HD, ignition coil mounts to cylinder head as square type
- Fits 1999-2006 Chevrolet Silverado 2500, ignition coil mounts to cylinder head as square type
- Fits 2003-2006 Chevrolet Silverado 3500, directly mounts onto cylinder head
- Fits 2000-2006 Chevrolet Suburban 1500, ignition coil mounts to cylinder head as square type
- Fits 2003-2006 Chevrolet Suburban 2500, ignition coil mounts to cylinder head as square type
- Fits 2000 Chevrolet Suburban 2500, ignition coil mounts to cylinder head as square type
- Fits 2000-2006 Chevrolet Tahoe, ignition coil mounts to cylinder head as square type
- Fits 2005-2006 GMC Sierra 1500 HD, ignition coil mounts to cylinder head as square type
- Fits 2001-2003 GMC Sierra 1500 HD, ignition coil mounts to cylinder head as square type
- Fits 2006 GMC Sierra 3500, directly mounts onto cylinder head
- Fits 2001-2006 GMC Sierra 3500, ignition coil mounts to cylinder head as square type
- Fits 2000-2006 GMC Yukon, ignition coil mounts to cylinder head as square type
- Fits 2000-2006 GMC Yukon XL 1500, ignition coil mounts to cylinder head as square type
- Fits 2003-2006 GMC Yukon XL 2500, directly mounts onto cylinder head
- Fits 2000-2006 GMC Yukon XL 2500, ignition coil mounts to cylinder head as square type
- Fits 2003-2005 Chevrolet Express 2500, ignition coil mounts to cylinder head as square type
- Fits 2003-2005 Chevrolet Express 3500, ignition coil mounts to cylinder head as square type
- Fits 2003-2005 GMC Savana 1500, ignition coil mounts to cylinder head as square type
- Fits 2003-2005 GMC Savana 2500, ignition coil mounts to cylinder head as square type
- Fits 2003-2005 GMC Savana 3500, ignition coil mounts to cylinder head as square type
- Fits 2003-2004 Chevrolet SSR, ignition coil mounts to cylinder head as square type
- Fits 2003-2004 Chevrolet Trailblazer EXT, ignition coil mounts to cylinder head as square type
- Fits 2003-2004 GMC Envoy XL, ignition coil mounts to cylinder head as square type
- Fits 2004 GMC Envoy XUV, ignition coil mounts to cylinder head as square type
- Fits 1999-2004 GMC Sierra 2500, ignition coil mounts to cylinder head as square type
Common Replacement Uses
- Restores weak or inconsistent spark output
- Addresses misfire-related drivability concerns
- Replaces a failed ignition coil on cylinder-head mounted applications
- Supports rough idle, hesitation, and hard-start complaints tied to ignition coil wear
- Serves as a direct replacement for many GM truck and SUV ignition systems
Installation Notes and Tips
Verify the mounting style on the existing coil before ordering, since this part covers square, circular, Mitsubishi-design, and direct cylinder-head mount configurations across different applications. Confirm the vehicle year, make, model, and engine-specific coil layout against the fitment list for a proper match. The Spectra C-561 is commonly searched for Chevrolet Silverado 1500, GMC Sierra 2500 HD, and Cadillac Escalade ignition coil replacement jobs.
Quality Assurance
Spectra Premium ignition coils are manufactured with premium-grade copper and developed to high engineering standards for dependable replacement performance. This part cross-references Delphi GN10298 for the same application. Part number C-561 is a fitment-specific replacement for confirmed GM applications.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Silverado 1500 Classic | — | 6.0L | V8 | N/A | Ignition Coil Mounts to Cylinder Head; with Mitsubishi Design |
| 2007 | Chevrolet | Silverado 1500 Classic | — | 5.3L | V8 | N/A | Ignition Coil Mounts to Cylinder Head; with Mitsubishi Design |
| 2007 | Chevrolet | Silverado 1500 Classic | — | 4.8L | V8 | N/A | Ignition Coil Mounts to Cylinder Head; with Mitsubishi Design |
| 2007 | Chevrolet | Silverado 1500 HD Classic | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | Chevrolet | Silverado 2500 HD Classic | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2007 | Chevrolet | Silverado 2500 HD Classic | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head using a circular design |
| 2007 | Chevrolet | Silverado 3500 | — | 5.7L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | Chevrolet | Silverado 3500 Classic | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2007 | Chevrolet | Silverado 3500 Classic | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | Chevrolet | Silverado 3500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 1500 | — | 6.2L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 1500 HD Classic | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 2500 HD Classic | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 3500 Classic | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 3500 Classic | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | GMC | Sierra 3500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2007 | Hummer | H2 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Cadillac | Escalade | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Cadillac | Escalade ESV | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Cadillac | Escalade EXT | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Avalanche 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Avalanche 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Express 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Monte Carlo | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 2500 HD | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Silverado 3500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2006 | Chevrolet | Silverado 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Suburban 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Suburban 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Suburban 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 2500 HD | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Sierra 3500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2006 | GMC | Sierra 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Yukon | Denali | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Yukon XL 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | GMC | Yukon XL 2500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2006 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2006 | Hummer | H2 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Cadillac | Escalade | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Cadillac | Escalade | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Cadillac | Escalade ESV | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Cadillac | Escalade EXT | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Avalanche 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Avalanche 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Express 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Express 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Express 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Express 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Express 3500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 2500 HD | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Silverado 3500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2005 | Chevrolet | Silverado 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Suburban 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Suburban 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Savana 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Savana 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Savana 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Savana 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Savana 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Savana 3500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 2500 HD | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 3500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Sierra 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Yukon | Denali | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Yukon XL 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | GMC | Yukon XL 2500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2005 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2005 | Hummer | H2 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Cadillac | Escalade | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Cadillac | Escalade | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Cadillac | Escalade ESV | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Cadillac | Escalade EXT | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Avalanche 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Avalanche 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Express 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Express 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Express 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Express 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Express 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Silverado 3500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2004 | Chevrolet | Silverado 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | SSR | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Suburban 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Suburban 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Chevrolet | Trailblazer EXT | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Envoy XL | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Envoy XUV | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Savana 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Savana 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Savana 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Savana 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Savana 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Savana 3500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 2500 HD | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 3500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Sierra 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Yukon | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Yukon XL 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | GMC | Yukon XL 2500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2004 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2004 | Hummer | H2 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Cadillac | Escalade | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Cadillac | Escalade | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Cadillac | Escalade ESV | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Cadillac | Escalade EXT | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Avalanche 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Avalanche 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Express 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Express 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Express 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Express 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Express 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Silverado 3500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2003 | Chevrolet | Silverado 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | SSR | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Suburban 2500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Suburban 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Chevrolet | Trailblazer EXT | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Envoy XL | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Savana 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Savana 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Savana 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Savana 2500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Savana 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 2500 HD | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 3500 | — | 8.1L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Sierra 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Yukon | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Yukon XL 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | GMC | Yukon XL 2500 | — | 8.1L | V8 | N/A | Directly mounts onto cylinder head. |
| 2003 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2003 | Hummer | H2 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Cadillac | Escalade | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Cadillac | Escalade | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Cadillac | Escalade EXT | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Avalanche 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Silverado 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Sierra 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Yukon | Denali | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Yukon XL 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2002 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Silverado 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 1500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 2500 HD | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Sierra 3500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Yukon | Denali | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Yukon XL 1500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2001 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Silverado 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Suburban 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Suburban 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Tahoe | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | Chevrolet | Tahoe | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Sierra 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Sierra 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Yukon | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Yukon | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Yukon XL 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 2000 | GMC | Yukon XL 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | Chevrolet | Silverado 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | Chevrolet | Silverado 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | Chevrolet | Silverado 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | Chevrolet | Silverado 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | GMC | Sierra 1500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | GMC | Sierra 1500 | — | 4.8L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | GMC | Sierra 2500 | — | 6.0L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
| 1999 | GMC | Sierra 2500 | — | 5.3L | V8 | N/A | Ignition Coil mounts to cylinder head as square type |
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