6 Ignition Coils & 6 Spark Plugs UF303 5019 for Chevy for GMC | Fits 2.8/3.5/3.7/4.2L 2002-2008: Rainier,Colorado,Trailblazer,Canyon,Envoy,H3,Ascender,i-280,i-350,i-370,Bravada.

GUARANTEED FITMENT IGNITION COIL & SPARK PLUG KIT This set includes 6 coils & 6 plugs for 2.8L L4, 3.5L / 3.7L L5 & 4.2L L6 (20022008). for Buick Rainier; for Chevy Colorado/Trailblazer; for GMC Canyon/Envoy; for Hummer H3; for Isuzu Ascender/i-280/i-350/i-370; for Oldsmobile Bravada. Verify fitment via chart. Coils marked with cylinder numbers for easy install.; OEM-EXACT REPLACEMENT FOR L4/L5/L6 ENGINES Our ignition coils cross-reference to UF303, 12568062, 19300921, 8-12568-062-0, DQ50164, GN10114, 52-1743, 1788390, IC051218, UF303T, D502A, HPUF303, DW01659; plugs replace 5019, ITV16TT, AP5263DP2, PTV16TT, SP411, AP5263, AP5364, AYFS22FM, HR8NPP302X, RE10PM5, HR7MPP30X, HR8MPP30X, RE10PMC5, 12628058, 12607280, 19239701.

Built to OE specsno CEL, no reflash.; WHY REPLACE YOUR IGNITION COILS & PLUGS TOGETHER On L4/L5/L6 engines, under-hood heat often exceeds 300°F, degrading ignition coils and widening plug gaps over time. Replacing both together 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 with reliable coils that hold stable voltage under high loads. Built with silicon steel, German copper, Japanese epoxy, and rubber sleeves to resist cracks, shorts, and failure.

Our iridium plugs feature CNC-machined shells and ceramic insulators for precise spark. Enjoy smoother idle, sharper throttle, quieter