Baldwin BT251 Oil Filter Baldwin Filter BT251 Full-Flow Lube Spin-on Contains: Anti-Drainback Valve, 8 PSID By-Pass Valve Fits:Ford, Oliver Tractors ; Replaces: Ford D2NN-6714-C O.D.: 3 11/16 (93.7) ; Length: 7 1/8 (181.0) Thread: 3/4-16 ; I. Gskt.:G381-A