Walker 921-2256 ThunderSpark Fits select: 2006 CADILLAC COMMERCIAL CHASSIS, 2006 BUICK LUCERNE

Walker Products 921-2256 Ignition Coil. ThunderSpark 921-2256 Ignition Coil. ThunderSpark Ignition Coils and Coil Sets are precision-engineered OE Replacement components designed to restore ignition system integrity and performance across modern gasoline engines. Each coil is built to match or exceed original equipment specifications for voltage output, resistance, and inductive response, supporting strong combustion under load. Constructed with high-dielectric epoxy, premium copper windings, and heat-resistant housings, these coils are built to handle the extreme temperatures and electrical demands found in today’s engine bays. Designed for exact OE fitment, they connect directly to factory harnesses and mount securely in place for coil-on-plug (COP), coil-near-plug (CNP), and distributorless ignition systems. Coil sets are available to simplify full engine service, reduce misfire diagnostics time, and improve overall ignition reliability. Whether replacing a single failed coil or refreshing the entire set during a tune-up, Walker Ignition Coils and Coil Sets deliver dependable spark performance, emissions compliance, and restored throttle response for everyday and high-mileage vehicles alike.

Walker 921-2256 ThunderSpark

Fits Select:
2006 CADILLAC COMMERCIAL CHASSIS 8 Cyl 4.6 L
2006 BUICK LUCERNE 8 Cyl 4.6 L
2006 CADILLAC XLR 8 Cyl 4.6 L
2006 CADILLAC STS 8 Cyl 4.4 L
and more - add your vehicle to our fit widget to check

Manufacturer part number	921-2256
Compatible cars	2006 CADILLAC COMMERCIAL CHASSIS, 2006 BUICK LUCERNE, 2006 CADILLAC XLR, 2006 CADILLAC STS
Vehicle fitment type	Specific
Brand	Walker
Vehicle make	Cadillac, Buick
Vehicle model	COMMERCIAL CHASSIS, Lucerne, XLR, STS
Vehicle year	2006
Count per pack	1
Weight	0.55 lb
Vehicle type	Car
Model	9212256