One New Aftermarket Replacement Track Adjuster Rod Fits John Deere (Fits JD) Crawler DozersThis aftermarket replacement track adjuster rod (piston rod) fits the hydraulic track adjuster assembly on Fits John Deere 650H and 650J series crawler dozers with a 6-roller track frame. The rod maintains proper track tension by allowing the grease-filled adjuster cylinder to extend and retract the front idler. Each machine requires two rods. Important: This rod fits the 650J Long Track (LT) up to serial number 159986 only. Verify your serial number before ordering.Specifications Length: 16-3/4 in. Diameter: 60 mm Track Frame: 6-Roller Quantity Required Per Machine: 2 Compatible ModelsFits John Deere (Fits JD) 650H Series Crawler Dozers: 650H LT (Long Track), 650H LGPFits John Deere (Fits JD) 650J Series Crawler Dozers: 650J LT (Long Track) - serial number 159986 and earlier onlyReplaces Part Number(s):AT211001, T257066, T169180, 905003, PV325New aftermarket replacement part - not remanufactured, not used.