6 Ignition Coils UF497 for GM for Chevy for Buick for Isuzu | Fits 2.9L 3.7L 4.2L: Rainier(06-07),Trailblazer(06-09),Envoy(06-09),Ascender(06-07),9-7X(06-09).OE:12612369,12629472.

GUARANTEED FITMENT IGNITION COIL KIT This complete set includes 6 heavy-duty ignition coils, engineered for 4.2L L6 engines (20062009). for Buick Rainier (20062007, 4.2L ); for Chevrolet Trailblazer/Trailblazer EXT (20062009, 4.2L ); for GMC Envoy/Envoy XL (20062009, 4.2L ); for Isuzu Ascender (20062007, 4.2L ); for Saab 9-7X (20062009, 4.2L ). Always verify fitment using the compatibility chart. Each ignition coil is marked with cylinder numbers for foolproof installation.; OEM-EXACT REPLACEMENT FOR 4.2L L6 ENGINES Our ignition coils cross-reference to UF497, UF-497, 12612369, 12629472, C741, GN10454, 610-02868, 8125965470, 8126123690, 8126294720, and 12596547.

Built strictly to factory dwell time, heat range, and connector specsno check-engine lights, no reflash needed.; WHY REPLACE YOUR IGNITION COILS On 4.2L L6 engines, under-hood heat often exceeds 300°F, degrading ignition coils over time. Replacing your ignition coils restores the entire ignition patheliminating misfire codes (P0300P0306), rough idle, hesitation, and cold-start stumbles. It's a complete cure, not a band-aid.; INSTANT PERFORMANCE GAINS & BETTER FUEL ECONOMY Upgrade your drive with reliable ignition coils that maintain stable voltage output under high loads. Built with high-grade materials for heat resistance, abrasion resistance, and corrosion resistance, our coils resist cracking, voltage leaks, and interferencedelivering quicker ignition, improved spark plug power, and optimized fuel econ