DAVCO Fuel Pro 382 The Fuel Pro 382 is a full function combination of diesel fuel filtration and water separation that will save you time, money and unnecessary down-time. The Fuel Pro 382 is recommended for heavy duty diesel engines with flow rates up to 180 gallon/hour. Davco Diesel Filter Wrench | OTC Tools Davco Diesel Filter Wrench •Found on Caterpillar, Cummins, Detroit Diesel, International, Mack, Mercedes-Benz, Volvo and other engines. •Fits Davco Fuel filters 382 & 384. •Durable steel construction. •Precise, laser-cut angles. •Made in USA. •Opens vent cap also. •Soft, ergonomic handle.