Walker 920-1052 Ignition Coil

Walker ThunderSpark Ignition Coil

Walker ThunderSpark part number 920-1052 is an ignition coil for Mitsubishi-system applications used across select Chevrolet, GMC, Cadillac, and Hummer trucks and SUVs. It is a direct-fit ignition component for vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade when the listed engine management setup matches.

Key Features

• Ignition coil for Mitsubishi vehicles and Mitsubishi-system applications
• Walker ThunderSpark product line
• Part number 920-1052 for catalog and service matching
• Fits a wide range of GM trucks and SUVs from 1999-2007
• Application-specific fitment for select Silverado, Sierra, Tahoe, Yukon, Escalade, and H2 models

Detailed Fitment Overview

Compatible With 1999-2007 Chevrolet Silverado 1500, 2007 Chevrolet Silverado 1500 Classic, 2007 Chevrolet Silverado 1500 HD Classic, 2005-2007 Chevrolet Silverado 2500, 2007 Chevrolet Silverado 2500 HD Classic, 2007 Chevrolet Silverado 3500 Classic, 2000-2007 Chevrolet Suburban 1500, 2002-2006 Chevrolet Avalanche 1500, 2003-2006 Chevrolet Avalanche 2500, 2005-2006 Chevrolet Silverado 1500 HD, 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2000-2006 Chevrolet Suburban 2500, 2000-2006 Chevrolet Tahoe, 1999-2007 GMC Sierra 1500, 2007 GMC Sierra 1500 Classic, 2007 GMC Sierra 1500 HD Classic, 2007 GMC Sierra 2500 HD Classic, 2007 GMC Sierra 3500 Classic, 2005-2006 GMC Sierra 1500 HD, 2001-2006 GMC Sierra 2500 HD, 2001-2006 GMC Sierra 3500, 2000-2006 GMC Yukon, 2000-2006 GMC Yukon XL 1500, 2000-2006 GMC Yukon XL 2500, 1999-2004 GMC Sierra 2500, 2002-2006 Cadillac Escalade, 2003-2006 Cadillac Escalade ESV, 2002-2006 Cadillac Escalade EXT, and 2003-2007 Hummer H2. Select listings note Mitsubishi-system or ThunderSpark applications, and the 2001 GMC Sierra 1500 listing specifies a square, Mitsubishi-compatible configuration.

Walker ThunderSpark 920-1052 is built for ignition service where the original coil has failed or where spark output has become inconsistent. It is a practical replacement for GM truck and SUV platforms that use the listed Mitsubishi ignition system, including Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and Chevrolet Tahoe applications.

Common Problems This Part Can Address

• Engine misfire caused by a weak or failing ignition coil
• Hard starting related to inconsistent spark delivery
• Rough idle under load or at stop
• Loss of power during acceleration
• Check engine light conditions tied to ignition performance

Installation Notes and Tips

Verify the vehicle year, make, model, and ignition system before ordering. This part is listed for N/A position applications and should be matched to the exact Mitsubishi-system fitment shown above. Inspect related ignition components, connectors, and coil mounting surfaces during replacement to confirm a clean electrical connection.

Quality Assurance

Walker ThunderSpark 920-1052 is cataloged as an application-specific ignition coil for the listed GM, Cadillac, and Hummer vehicles. This part cross-references no additional part numbers in the provided data.