Outer SpringThis outer spring is an aftermarket replacement spring used on a forklift valve train, clutch, or hydraulic assembly, supplying clamping force in a dual or nested spring arrangement. Outer springs are replaced during valve job kits, clutch rebuilds, or hydraulic valve overhauls when free length or seat pressure has dropped out of spec. Forklift mechanics order aftermarket outer springs because they match OE free length, spring rate, and seat pressure at a price that supports rebuild shop economics on a wear part replaced in sets.Aftermarket replacement part, cross-references original part number AC1002963.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC1002963, ac1002963 ⚠ 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.