SealThis seal is an aftermarket replacement seal used on a forklift hydraulic, engine, or driveline component, sealing fluid at a static or dynamic joint. Seals are consumed in routine service, and replacement is mandatory whenever the original is removed since reused seals leak. Forklift mechanics order aftermarket seals because they are the highest frequency wear parts in the shop, and aftermarket seals match OE inner diameter, outer diameter, height, and material specs needed for clean sealing at the joint.Aftermarket replacement part, cross-references original part number AC1001999.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC1001999, ac1001999 ⚠ 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.