View 0 Photos View 0 Videos 2006 Isuzu 7.8L DURAMAX Engine Mount for a GMC C7500 $750 USD (USED) Isuzu 7.8L DURAMAX Ref# 15074989 / 15074990 PIC IS A STOCK PHOTO. CASTING: 15074989 / 15074990. INTERCHANGEABLE BY SIDE. WILL ALSO FIT 8.1L, 6.6L, AND C7, EACH SOLD SEPERATLY Quantity2ConditionUsedFits To Make(s)GMCFits To Model(s)C7500Part Number15074989 / 15074990Stock Number26025820 MLS Number14462677CategoryEngine Mounts Last Updated7/18/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info