Description:

- IGNITION COILS FITMENT - coil packs for Chevrolet for Trailblazer EXT 02-05 for Chevrolet for Trailblazer 02-05 for Chevrolet for Colorado 04-06 for Oldsmobile for Bravada 02-04 for Chevrolet for Blazer 02 for Isuzu for Ascender 03-08 for GMC for Envoy XUV 04-05 for Buick for Rainier 04-05 for GMC for Envoy XL 02-05 for Isuzu for i-370 07-08 for Isuzu for i-290 07-08 for Isuzu for i-280 06 for Isuzu for i-350 06. - COIL PACKS PART-NUMBERS - Ignition OE UF-303,28310,28315,1788390,IC051218,UF303T,D502A,521743,DR1707,5073,1C414,HPUF303,UF-303,11173596,C303,12114,UF303G,LTR5GP,5019,BRUF303,B349X11. - How an Ignition Coil Works - Ignition coils purpose is to provide the high voltage needed by the ignition system to fire the spark plugs. The spark plug needs about 15,000 to 20,000 volts of electricity in order to form an electric spark that can ignite the fuel. If you dont have strong ignition coils then it will result in weak fuel consumption or engine misfires. - Causes of ignition coils damage - Ignition coils can go bad due to problems with spark plugs and plug wires, abnormal spark plug gaps, and overheating and excessive vibration. - Our coil packs is the best choice - Our ignition coils are made of the highest quality copper and feature a unique winding design that reduces weight and size without sacrificing quality. Due to the lightweight design, each coil is easy to install.