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WIX · Filtration
33657
In stock · ships from Knoxville
A heavy-duty, metal canister-style fuel filter cartridge designed for diesel fuel/water separator assemblies, most commonly the Davco Elemax 382.
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Verified fitment for 12 applications
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All confirmed applications for this part number.
Freightliner
International
Kenworth
Peterbilt
Western Star
Other applications
Freightliner
International
Kenworth
Peterbilt
Western Star
Other applications
Filters the Davco Elemax 382 fuel/water separator assembly found on many heavy-duty trucks. Always verify mounting dimensions (3.75 inch OD, 7.11 inch height, closed top) and required micron rating before installation.
Part data verified against 5 catalog sources
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It captures dirt, rust, and water from the fuel before it reaches the engine, protecting the fuel injection system. This filter is rated at 50 microns, making it a primary filtration element that is typically replaced during routine service or when the Davco separator shows a restricted filter. It can be used as a direct replacement for Donaldson P550737 (7 micron) or P550736 (25 micron) elements, though the micron rating differs, so it is often used as a primary filter where the assembly calls for a 50-micron media.
Part Number: 33657
FUEL FILTER = P550737 OR P550736
Vendor: Cumberland Auto Parts
Dealer: KP Services Crossville
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