ECCPP Ignition Coil Pack of 1 Compatible with Pontiac Buick Chevy 1985-1996 Replacement for DR37 E46 C846 IGNITION COIL PACK FITMENT - Replacement ignition coil for Buick Cadillac Chevy 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 HIGH QUALITY REPLACEMENT - Made of top quality materials, for higher stability and reliability, meet or exceed OEM standards,it helps solve the issue caused by bad coils such as shake and eliminate misfire 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 BUYER NOTICE - 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 COMPATIBLE PART NUMBERS - C846 D503A D535 D535CS D537 D544 D573 5C1029 8983501871 1788179 00243 E46 E46P 521921 GN10048 IC29 10477208 1115315 1115317 1115468 12498334 8011153150 8011154680 83501871 8983501871 DR-37 DR-37X 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