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Spectra C-642 Ignition Coil
Reliable Ignition Coil for Select GM and Isuzu Models
The Spectra C-642 ignition coil is engineered to provide consistent ignition performance for a range of vehicles including Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, and Saab models. Designed to meet OEM specifications, this ignition coil supports efficient engine operation and reliable starting.
Key Features of Spectra C-642 Ignition Coil
- Compatible with multiple GM and Isuzu vehicles such as Chevrolet Trailblazer, GMC Envoy, and Isuzu i-280
- Direct replacement ignition coil designed to meet original equipment standards
- Durable construction for long-lasting performance under various driving conditions
- Part number C-642 ensures precise fitment and easy identification
- Supports optimal spark delivery for improved engine efficiency
Detailed Product Description
The Spectra C-642 ignition coil is a critical component in the ignition system, responsible for converting the battery's low voltage to the high voltage needed to ignite the fuel-air mixture in the engine cylinders. This ignition coil is compatible with a variety of vehicles including Buick Rainier, Chevrolet Colorado, GMC Canyon, Hummer H3, Isuzu i-290, Oldsmobile Bravada, and Saab 9-7x. Its design ensures proper electrical resistance and heat tolerance, which helps maintain consistent spark generation and engine performance. The C-642 ignition coil is manufactured to meet or exceed OEM specifications, providing a reliable replacement option for vehicles experiencing ignition-related issues.
Common Applications and Issues Addressed
- Resolves engine misfires and rough idling caused by faulty ignition coils
- Improves starting reliability in cold or damp conditions
- Eliminates hesitation or power loss during acceleration
- Prevents check engine light triggers related to ignition coil failure
- Supports smooth engine operation and fuel efficiency
Installation Notes and Tips
- Ensure the vehicle is turned off and the battery is disconnected before installation
- Locate the faulty ignition coil by referencing the vehicle’s service manual for the specific model
- Remove the old ignition coil carefully to avoid damaging surrounding components
- Install the Spectra C-642 ignition coil securely, ensuring all electrical connections are tight
- After installation, clear any diagnostic trouble codes and test the engine for proper operation
Quality Assurance and Warranty
Manufactured to meet industry standards, the Spectra C-642 ignition coil undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Spectra typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.
This part fits 47 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Isuzu | Ascender | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2008 | Isuzu | i-290 | 2.9L | L4 | N/A | Directly mounts onto cylinder head. |
| 2008 | Isuzu | i-370 | 3.7L | L5 | N/A | Directly mounts onto cylinder head. |
| 2007 | Isuzu | i-290 | 2.9L | L4 | N/A | Directly mounts onto cylinder head. |
| 2007 | Isuzu | i-370 | 3.7L | L5 | N/A | Directly mounts onto cylinder head. |
| 2006 | Chevrolet | Colorado | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2006 | Chevrolet | Colorado | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2006 | GMC | Canyon | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2006 | GMC | Canyon | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2006 | Hummer | H3 | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2006 | Isuzu | i-280 | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2006 | Isuzu | i-350 | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2005 | Buick | Rainier | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | Chevrolet | Colorado | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2005 | Chevrolet | Colorado | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | GMC | Canyon | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2005 | GMC | Canyon | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2005 | GMC | Envoy | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | GMC | Envoy XL | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | Isuzu | Ascender | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2005 | Saab | 9-7x | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | Chevrolet | Colorado | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2004 | Chevrolet | Colorado | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | GMC | Canyon | 3.5L | L5 | N/A | Directly mounts onto cylinder head. |
| 2004 | GMC | Canyon | 2.8L | L4 | N/A | Directly mounts onto cylinder head. |
| 2004 | GMC | Envoy | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | GMC | Envoy XL | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | GMC | Envoy XUV | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | Isuzu | Ascender | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2004 | Oldsmobile | Bravada | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2003 | GMC | Envoy | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2003 | GMC | Envoy XL | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2003 | Isuzu | Ascender | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2003 | Oldsmobile | Bravada | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2002 | GMC | Envoy | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2002 | GMC | Envoy XL | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
| 2002 | Oldsmobile | Bravada | 4.2L | L6 | N/A | Ignition Coil mounts to cylinder head and contains 1 unit |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.