Engine Oil Pump for Isuzu 6BG1 & 6BG1T Engines High-quality replacement oil pump part number 1131002770 / 1-13100277-0, designed for Isuzu 6BG1 and 6BG1T six-cylinder engines used in Hitachi EX200-5, EX210-5, ZX200, and other excavator models. Key Features Genuine Isuzu engine oil pump, part numbers 1131002770 / 1-13100277-0 Revision number compatibility: 1-13100277-1 / 1131002771 Specifically designed for 6BG1 and 6BG1T six-cylinder engine decks Compatible with Hitachi EX200