Walker 900-P2038-6 Coil Boot Kit

Walker ThunderCore-Ultra Coil Boot Kit

Walker ThunderCore-Ultra 900-P2038-6 is a coil boot kit for ignition service on select GM and Isuzu applications. It 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, and 2003-2005 Isuzu Ascender.

Key Features

• Ignition coil boot kit for ThunderCore-Ultra applications
• Direct fitment coverage for select Trailblazer, Envoy, Rainier, and Ascender models
• Supports ignition service on vehicles with coil-on-plug style components
• Walker part number 900-P2038-6 for catalog and service matching
• Built for vehicles across the 2002-2005 model years

Fitment Details

• Fits 2004-2005 Buick Rainier, N/A, ThunderCore-Ultra.
• Fits 2002-2005 Chevrolet Trailblazer, N/A, ThunderCore-Ultra.
• Fits 2002-2005 Chevrolet Trailblazer EXT, N/A, ThunderCore-Ultra.
• Fits 2002-2005 GMC Envoy, N/A, ThunderCore-Ultra.
• Fits 2002-2005 GMC Envoy XL, N/A, ThunderCore-Ultra.
• Fits 2004-2005 GMC Envoy XUV, N/A, ThunderCore-Ultra.
• Fits 2003-2005 Isuzu Ascender, N/A, ThunderCore-Ultra.

What It Helps Address

• Ignition misfire caused by worn coil boot components
• Hard starting related to degraded ignition transfer at the coil
• Rough idle from compromised spark delivery
• Loss of engine performance tied to ignition breakdown
• Service replacement for aging ThunderCore-Ultra ignition parts

Installation Notes

Verify the vehicle’s ignition system and engine application before ordering. Match the part number 900-P2038-6 to the existing ThunderCore-Ultra configuration on the vehicle, and inspect adjacent ignition components during service to confirm the source of the fault.

Quality Assurance

Walker ThunderCore-Ultra 900-P2038-6 is cataloged for specific GM and Isuzu fitments, including Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Isuzu Ascender applications. Use the confirmed vehicle listing to verify coverage before installation.