This is an Isuzu 6HK1 ECM. OEM Part#: 8943923690, 8976017481, 8943925920, 8943925900, 8976013040. They will fit 1998-2004 Isuzu FRR, FSR, FTR, FVR and GMC T6500, T7500 . Call for pricing and availability at 1-877-564-6307 Press 1.  If you have any further questions speak with our sales team. 05-13-16 *Pictures are for Illustration Purposes Only*