Wix 33405 Fuel Water Separator Filter

Fuel Water Separator Filter for Heavy-Duty Fuel Systems

The Wix 33405 fuel water separator filter is built for heavy-duty diesel fuel systems that need cleaner fuel and reliable water removal. It uses enhanced cellulose media to capture contaminants while helping separate water from fuel for consistent engine protection.

Compatible With heavy-duty equipment and diesel applications that use a spin-on fuel/water separator design, including select Caterpillar, Cummins, Ford, John Deere, and Volvo equipment. The Wix 33405 is a direct replacement choice for service intervals where dependable filtration and water drainage matter.

Key Features

• Enhanced cellulose media for contaminant retention and water separation
• 14 micron filtration rating for fine particle capture
• Spin-on fuel/water separator style with 1-14 thread size
• 12 GPM flow rate for demanding diesel fuel delivery systems
• High-strength can, center tube, and end caps with corrosion-resistant construction
• Drain cock included for water purging
• 320 burst pressure rating

Detailed Product Overview

Wix 33405 is a heavy-duty fuel water separator filter designed to help keep diesel fuel cleaner by removing water and trapping contaminants before they reach sensitive fuel system components. Its enhanced cellulose media supports strong holding capacity, while the sealed construction helps maintain leak-resistant performance in demanding service environments. This part cross-references Fleetguard FF1212 and Donaldson P550106 for the same application.

With a 7.219-inch height, 3.698-inch outer diameter, closed top, and spin-on configuration, this filter is suited to equipment that uses a standard fuel/water separator canister. The Wix 33405 is a practical service part for operators maintaining diesel-powered machinery, trucks, and off-road equipment where water in fuel can lead to hard starts, rough running, or injector wear.

Common Service Issues It Helps Address

• Water contamination in diesel fuel
• Restricted fuel flow from a loaded separator element
• Contaminant buildup in fuel delivery systems
• Hard starting caused by poor fuel quality
• Fuel system wear linked to moisture and debris

Installation Notes and Tips

Install the Wix 33405 on applications that specify a 1-14 threaded, spin-on fuel/water separator filter. Before installation, verify the housing sealing surface is clean and inspect the drain cock and sealing components for proper operation. After service, purge collected water as needed and confirm there are no leaks at the filter base.

For fitment-focused searches, this part is commonly referenced for heavy-duty diesel service on Caterpillar, Cummins, Ford, John Deere, and Volvo equipment. Always match the filter dimensions and thread specification to the existing unit before replacement.

Quality Assurance

Wix designs HD fuel water separator filters with corrosion-resistant components and superior sealing materials to support long service life and leak-resistant operation in demanding diesel environments.