ECCPP Ignition Coil, Ignition Coil Packs Replacement Coils UF303 C1395 610-00109 for Buick Oldsmobile Chevy GMC Saab Isuzu Hummer 2002-2009Pack of 6 IGNITION COILS FITMENT: Replacement ignition coil is compatible with Buick Oldsmobile Chevy GMC Saab Isuzu Hummer 2002-2009 COIL PACK FEATURES: Ignition coil packs are easy-installation designed and meticulously manufactured, which are made of superior quality materials PRODUCT FUNCTIONS: This new premium ignition coil can fit your vehicles perfectly and produce a high output energy, which can keep your engine running well and smoothly IMPORTANT NOTES: Please read the fitment list carefully beforehand to avoid ordering the improper coils, remember to prevent putting the ignition coils under the hot or wet environment INTIMATE WARRANTY: Our ignition coil sets provide you with a 12-months maintenance period and all-round after-sale technical assistance Preventing the ignition coil being heated or damp Turning off the ignition coil when the engine does not work Checking, clearing the ignition coil and tightening the connector in order to avoid short circuit or ground Controlling the engine capability to prevent excerssive voltage Changing the spark plug regularly