Baldwin BF1283 Water Separator Spin-On with Drain Fits Caterpillar Equipment, Industrial, Marine, Truck Engines, and Racor 4120 Series Replaces the Caterpillar 133-5673 and Racor R120S Contains: Integral Post Seal Measures 4 9/32 (108.7cm) inches wide and 11 7/32 (285.0cm) inches long I. Gasket.: [1] Included