Back-Up RingThis back-up ring is supplied as an aftermarket replacement, contact us to verify fit. Listed as ring - back up, it works within hydraulic cylinders, valve bodies, and tilt or lift assemblies where fluid sealing is critical, where dimensional accuracy and material grade decide whether a repair holds up to daily duty. Hydraulic rebuilders and dealer mechanics use these on every cylinder reseal job. Keeping it on hand turns a long downtime event into a quick swap on the shop floor, which is why dealers across Southern California source through SCR Forklift Parts in Whittier. Reference AC0125670 when calling so our team confirms fit.Aftermarket replacement part, cross-references original part number AC0125670.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC0125670, ac0125670 ⚠ 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.