O-RingThis o ring is an aftermarket replacement sealing ring used on a forklift hydraulic, fuel, or engine component, sealing a static or low motion joint between two machined surfaces. O rings are consumed any time a joint is opened for service, since reusing a compressed o ring leads to leaks. Forklift mechanics keep aftermarket o rings stocked in common sizes because they are the highest frequency seal replacement in the shop, and aftermarket o rings match OE inner diameter, cross section, and durometer specs.Aftermarket replacement part, cross-references original part number AC1000751.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC1000751, ac1000751 ⚠ 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.