One New Aftermarket Replacement Keeper Valve for Cockshutt, Oliver, Fits John Deere, White, and Minneapolis Moline TractorsThis aftermarket replacement keeper valve (also known as a valve stem lock or valve retainer) secures the valve stem, valve spring, and retaining washer together within the cylinder head. It is a precision engine component used during valve train service or cylinder head rebuilds on a wide range of vintage agricultural tractors. Part number ABC5561 replaces OEM number B367R and cross-references to B367T.Compatible ModelsCockshutt: 550 (up to SN: 72831 with 180DKB, 180GLB, 180GKB, 180DLB engine)Oliver: 66, 77, 88, 550, 660, 770, 1800, 1850, Super 55, Super 66, Super 77, Super 88Fits John Deere: M, MT, MC, MI, BO, BR, B, H, 40, 320, 330, 420, 430, 440, 520, 530, 3010 (Gas w/ Block # R26150), 3020 (Gas SN 122999), 4000, 4010 (Gas except w/ Block # R40940 and R49550), 4020 (Gas SN 200999), 500 (SN 123113), 500A (SN 123113), 500B (SN 123113), 600 (SN 214999)Minneapolis Moline: G550White: 2-44Note: Several Fits John Deere models have serial number and engine block number restrictions - verify your engine block number before ordering.Replaces Part Number(s):ABC5561, B367R, B367TAftermarket Interchange NumbersA-B367R, RPB367R, TP-B367R, 33R31, B200A, B6466ANew aftermarket replacement part - not remanufactured, not used.