Standard Ignition

Standard Ignition CPBK120 Direct Ignition Coil Boot Kit

Brand Standard Ignition CPBK120
Boot Configuration Straight
Content Includes spring
O.E.M. Replacement Yes
Part Material Silicone
Per Vehicle Requirement 1
Fits Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab · 27 vehicles

OE replacement. Direct ignition coil boot kit for a straightforward fit.

Silicone boot material. Helps resist heat and maintain reliable insulation.

Includes spring. Provides the internal contact needed for proper ignition transfer.

Cross-references Four Seasons 90004, Standard Ignition CPBK120 and 99-128K for the same application. See all 3.

$31.89Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $31.89
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Ignition Coil Boot Kit for GM V8 Applications

Standard Ignition CPBK120 is a direct ignition coil boot kit built for OE-style service on select GM SUVs and crossovers. It uses a straight silicone boot and includes a spring for proper coil-to-plug connection in the ignition system.

Compatible with 2002-2005 Chevrolet Trailblazer, 2002-2005 GMC Envoy, and related applications, this boot kit supports reliable ignition coil service on vehicles that need a direct replacement boot assembly. The CPBK120 part number is also referenced for the same application under common aftermarket cross-references.

Key Features

  • Direct ignition coil boot kit for OE replacement service
  • Straight boot configuration for the listed applications
  • Silicone boot material for heat-resistant ignition service
  • Includes spring for coil boot assembly function
  • OE replacement design for factory-style fitment
  • Standard Ignition CPBK120 identification for ordering and lookup

Detailed Product Description

Standard Ignition CPBK120 is a direct ignition coil boot kit designed for vehicles that use a straight boot configuration. The silicone construction helps maintain consistent electrical insulation and durability in the ignition system, while the included spring supports the connection between the coil and spark plug. This OE replacement part is listed for 2002-2005 Chevrolet Trailblazer, 2002-2005 Chevrolet Trailblazer EXT, 2002-2005 GMC Envoy, 2002-2005 GMC Envoy XL, 2004-2005 GMC Envoy XUV, 2004-2005 Buick Rainier, 2003-2005 Isuzu Ascender, 2005 Saab 9-7x, and 2002-2004 Oldsmobile Bravada. The CPBK120 part number is a practical match for ignition service on these platforms when the original boot shows wear or damage.

This part cross-references Four Seasons 90004 for the same application.

Common Issues This Part May Address

  • Cracked or heat-damaged ignition coil boot
  • Misfire caused by poor coil-to-plug connection
  • Hard starting related to worn ignition boot insulation
  • Intermittent ignition performance from deteriorated boot material
  • Service replacement for a damaged OE-style boot assembly

Installation Notes and Tips

Verify the boot configuration matches the original straight-style setup before installation. Inspect the coil tower, spark plug, and surrounding ignition components for wear, carbon tracking, or contamination before reassembly. For best results, install on a clean, dry ignition surface and confirm the spring seats correctly during assembly. Use the vehicle fitment list to confirm application before ordering CPBK120.

Quality Assurance

Standard Ignition supplies OE replacement ignition components for service applications, and CPBK120 is built to match the listed factory-style fitments for direct ignition coil boot replacement.

Compatible Vehicles

  • 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 2003-2005 Isuzu Ascender, N/A
  • Fits 2005 Saab 9-7x, N/A
  • Fits 2002-2004 Oldsmobile Bravada, N/A
This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005BuickRainier4.2LL6N/A
2005ChevroletTrailblazer4.2LL6N/A
2005ChevroletTrailblazer EXT4.2LL6N/A
2005GMCEnvoy4.2LL6N/A
2005GMCEnvoy XL4.2LL6N/A
2005GMCEnvoy XUV4.2LL6N/A
2005IsuzuAscender4.2LL6N/A
2005Saab9-7x4.2LL6N/A
2004BuickRainier4.2LL6N/A
2004ChevroletTrailblazer4.2LL6N/A
2004ChevroletTrailblazer EXT4.2LL6N/A
2004GMCEnvoy4.2LL6N/A
2004GMCEnvoy XL4.2LL6N/A
2004GMCEnvoy XUV4.2LL6N/A
2004IsuzuAscender4.2LL6N/A
2004OldsmobileBravada4.2LL6N/A
2003ChevroletTrailblazer4.2LL6N/A
2003ChevroletTrailblazer EXT4.2LL6N/A
2003GMCEnvoy4.2LL6N/A
2003GMCEnvoy XL4.2LL6N/A
2003IsuzuAscender4.2LL6N/A
2003OldsmobileBravada4.2LL6N/A
2002ChevroletTrailblazer4.2LL6N/A
2002ChevroletTrailblazer EXT4.2LL6N/A
2002GMCEnvoy4.2LL6N/A
2002GMCEnvoy XL4.2LL6N/A
2002OldsmobileBravada4.2LL6N/A
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 90004Standard Ignition — CPBK12099-128K