Walker 920-1020 Ignition Coil

Walker ThunderSpark Ignition Coil

Walker ThunderSpark 920-1020 is an ignition coil for GM trucks, SUVs, and vans with Delphi ignition systems. It is listed for a wide range of Chevrolet, GMC, Cadillac, Buick, Hummer, and Isuzu applications from 1999-2007, including Silverado, Sierra, Tahoe, Yukon, and Express models.

Key Features

• Walker ThunderSpark ignition coil for Delphi-system applications
• Direct fit coverage for many GM V8 truck and SUV platforms
• Fits 1999-2007 Chevrolet Silverado 1500 and GMC Sierra 1500 applications
• Also listed for Chevrolet Tahoe, Suburban, Avalanche, Yukon, and Escalade models
• Part number 920-1020 for catalog and service lookup

Fitment Details

• Fits 1999-2007 Chevrolet Silverado 1500, N/A; ignition coil compatible with Delphi systems
• Fits 2000-2006 Chevrolet Tahoe, N/A; ignition coil compatible with Delphi systems
• Fits 2000-2006 GMC Yukon, N/A; ignition coil compatible with Delphi systems
• Fits 2003-2007 Chevrolet Express 1500, N/A; ThunderSpark
• Fits 2003-2007 GMC Savana 2500, N/A; ThunderSpark

This ignition coil is used to restore spark output in vehicles experiencing misfire, rough idle, hard starting, loss of power, or intermittent ignition performance. It is also a direct replacement choice for service work on Chevrolet Silverado 1500, GMC Sierra 1500, and related GM truck and SUV platforms.

Installation Notes

Verify the vehicle’s ignition system type and match the application notes before installation. Confirm connector style, mounting location, and engine configuration against the existing coil and service information. For best results, inspect spark plugs and related ignition components during replacement.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and part number 920-1020 is cataloged for the listed GM applications.