12 0 Isuzu 6HK1 Rocker Arm $150 USD Quality used rocker arm assembly with shaft, and rocker arms and all other pieces for an Isuzu 7.8L 6HK1 engine, backed by our standard warranty. OEM # 8-97306-421-3, 8-97306-424-3, 8... ConditionUsedStock Number35R-89730642-STK MLS Number13155124CategoryRocker Arms Last Updated8/19/2025 LocationBig Lake, MN, US Sold ByQuality Bus and Truck Parts (844) 580-___ SHOWNUMBERCall Seller Email Seller Save More Info