Fits 2004 Chevrolet Silverado 2500, ECU/ECM, OEM:12586242, VIN:1GCHK23U84F140159

2004 Silverado Engine computer 12586242 "Programmed to your VIN" ECM PCM ECU

2003-2006 CHEVY SILVERADO 2500 GMC SIERRA ECM ENGINE COMPUTER 12586242 YCTJ

2004 04 CHEVROLET SILVERADO ENGINE COMPUTER MODULE ECU ECM 12586242 YFXL OEM

2004 Chevrolet Tahoe Silverado Engine Control Module 12586242 ECM ECU AA5533 DG

2003-2006 Chevrolet Silverado 1500 Engine Control Module ECU ECM 12586242 OEM

2004 04 CHEVROLET SILVERADO ENGINE COMPUTER MODULE ECU ECM 12586242 YFXM OEM

PCM 12586242. YFKD. HDW 12583660 P23199 Blue. completely untested Delphi Auto