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Walker 928-4055-6 Ignition Coil Set
| Brand | Walker 928-4055-6 |
|---|---|
| Product line | Coil Set |
| Fits | Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab · 28 vehicles |
Coil set. Ignition coil set for dependable spark delivery.
Walker Coil Set line for ignition system replacement.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker Coil Set 928-4055-6 Overview
Walker 928-4055-6 is an ignition coil set for select GM and Isuzu SUV applications. It is built for direct replacement use on vehicles such as the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier when diagnosing ignition misfire or weak spark concerns.
The Walker Coil Set line focuses on ignition service parts for common repair needs, giving technicians a straightforward replacement option for engine performance issues tied to coil failure. Part number 928-4055-6 is listed for multiple 2002-2008 applications, including the Chevrolet Trailblazer and GMC Envoy platform.
Key Features
- Ignition coil set for select GM and Isuzu applications
- Fits 2002-2005 Chevrolet Trailblazer, N/A
- Fits 2002-2005 GMC Envoy, N/A
- Fits 2004-2005 Buick Rainier, N/A
- Fits 2005 Saab 9-7x, N/A
- Walker part number 928-4055-6 for catalog lookup and ordering
Vehicle Fitment
- Fits 2008 Isuzu Ascender, N/A
- Fits 2004-2005 Isuzu Ascender, N/A
- Fits 2004-2005 Buick Rainier, N/A
- Fits 2002-2005 Chevrolet Trailblazer, N/A
- Fits 2002-2005 Chevrolet Trailblazer EXT, N/A
- Fits 2002-2005 GMC Envoy, N/A
- Fits 2002-2005 GMC Envoy XL, N/A
- Fits 2004-2005 GMC Envoy XUV, N/A
- Fits 2005 Saab 9-7x, N/A
- Fits 2002-2004 Oldsmobile Bravada, N/A
- Fits 2003 Isuzu Ascender, N/A, Incl.Boot and Spring
Common Repair Uses
- Engine misfire diagnosis tied to ignition coil failure
- Rough idle caused by weak or inconsistent spark output
- Hard starting related to degraded ignition performance
- Check engine light conditions associated with coil circuit faults
- Loss of power under load on Trailblazer, Envoy, or Rainier applications
Installation Notes
Verify year, make, model, and engine application before installation. Confirm the connector style and mounting location match the original part, and inspect related ignition components such as spark plugs and boots during service. For the 2003 Isuzu Ascender listing, the notes specify boot and spring inclusion for that application.
Quality Assurance
Walker ignition components are cataloged for service replacement across multiple OE-style applications. Part number 928-4055-6 is identified for direct-fit use on listed Chevrolet, GMC, Buick, Isuzu, Saab, and Oldsmobile models.
| Year | Make | Model | Submodel | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2008 | Isuzu | Ascender | — | 4.2L | L6 | Coil Set |
| 2005 | Buick | Rainier | — | 4.2L | L6 | Coil Set |
| 2005 | Chevrolet | Trailblazer | — | 4.2L | L6 | Coil Set |
| 2005 | Chevrolet | Trailblazer EXT | — | 4.2L | L6 | Coil Set |
| 2005 | GMC | Envoy | — | 4.2L | L6 | Coil Set |
| 2005 | GMC | Envoy XL | — | 4.2L | L6 | Coil Set |
| 2005 | GMC | Envoy XUV | — | 4.2L | L6 | Coil Set |
| 2005 | Isuzu | Ascender | — | 4.2L | L6 | Coil Set |
| 2005 | Saab | 9-7x | — | 4.2L | L6 | Coil Set |
| 2004 | Buick | Rainier | — | 4.2L | L6 | Coil Set |
| 2004 | Chevrolet | Trailblazer | — | 4.2L | L6 | Coil Set |
| 2004 | Chevrolet | Trailblazer EXT | — | 4.2L | L6 | Coil Set |
| 2004 | GMC | Envoy | — | 4.2L | L6 | Coil Set |
| 2004 | GMC | Envoy XL | — | 4.2L | L6 | Coil Set |
| 2004 | GMC | Envoy XUV | — | 4.2L | L6 | Coil Set |
| 2004 | Isuzu | Ascender | — | 4.2L | L6 | Coil Set |
| 2004 | Oldsmobile | Bravada | — | 4.2L | L6 | Coil Set |
| 2003 | Chevrolet | Trailblazer | — | 4.2L | L6 | Coil Set |
| 2003 | Chevrolet | Trailblazer EXT | — | 4.2L | L6 | Coil Set |
| 2003 | GMC | Envoy | — | 4.2L | L6 | Coil Set |
| 2003 | GMC | Envoy XL | — | 4.2L | L6 | Coil Set |
| 2003 | Isuzu | Ascender | Base | 4.2L | L6 | Incl.Boot and Spring; Coil Set |
| 2003 | Oldsmobile | Bravada | — | 4.2L | L6 | Coil Set |
| 2002 | Chevrolet | Trailblazer | — | 4.2L | L6 | Coil Set |
| 2002 | Chevrolet | Trailblazer EXT | — | 4.2L | L6 | Coil Set |
| 2002 | GMC | Envoy | — | 4.2L | L6 | Coil Set |
| 2002 | GMC | Envoy XL | — | 4.2L | L6 | Coil Set |
| 2002 | Oldsmobile | Bravada | — | 4.2L | L6 | Coil Set |
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