Engine PlugSCR Forklift Parts carries this engine plug as an aftermarket replacement, giving parts buyers at dealerships a practical alternative to dealer-only sourcing. It is commonly used in cast water or oil galleries of the engine block and head, sealing core or service ports after machining or rebuild, where worn or damaged hardware needs swapping during routine PM or breakdown repair. Keeping pieces like this on the shelf shortens downtime, since component failures often halt a lift truck mid-shift. Because the cross-reference for AC11021-E3000 is to an unrecognized supplier code, contact our team in Whittier with your truck make, model, and serial number to confirm fit before ordering.Aftermarket replacement part, cross-references original part number AC11021-E3000.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC11021-E3000, ac11021-e3000, AC11021E3000, ac11021e3000 ⚠ Warning: Some equipment has serial-number breaks that may not be reflected in the catalog. Contact us for clarification before ordering if uncertain.SCR Forklift Parts ships from Whittier, CA with next-day delivery available across the US when needed.