Napol Performance Ignition Coil 04-05 CADILLAC SRS STS XLR PONTIAC DEVILLE 4.6L C1509 UF-372 D593A - Coils / Harness / Bracket Set Seville Bonneville - Set of 4 Four Aftermarket high performance Cadillac / Pontiac ignition coils Direct replacement OEM fitment With Harness Plugs & Bracket / Bolts Aftermarket part fits OEM # : D593A, 5C1552, E402, 52-1817, IC502, 12585765, 89017778, UF-372, UF372 These are aftermarket performance coils, used on The 4.6L V8 ENGINE , Cadillac DeVille 2004-2005 4.6 , Cadillac SRX 2004-2005 4.6 , Cadillac STS 2005 4.6 , Cadillac Seville 2004 4.6 , Cadillac XLR 2004-2005 4.6 , Pontiac Bonneville 2004-2005 4.6 2 Year Warranty Meets or Exceed Oem Performance