Wix 33504 Fuel Filter

Fuel Filter Overview

The Wix 33504 is a spin-on fuel filter built for heavy-duty fuel systems that need consistent filtration and dependable sealing. It uses enhanced cellulose media and a 10-micron rating to help maintain fuel cleanliness in demanding service.

Fits 1986-1987 Mitsubishi Fuso FK and 1986-1987 Mitsubishi Fuso FM, N/A. The Wix 33504 is also cross-referenced to several equivalent part numbers for the same application.

Key Features

• Spin-on fuel filter design for straightforward service replacement.
• Enhanced cellulose media for application-specific fuel filtration.
• 10-micron filtration rating for fine particle capture.
• High-strength, corrosion-resistant canister, center tube, and end caps.
• Sealing components engineered for leak-resistant performance.
• 1-14 thread size with a closed top inner diameter.

Detailed Description

Wix 33504 is a heavy-duty fuel filter designed for medium and heavy truck service, along with farm, construction, mining, and other equipment applications. Its 12-15 GPM flow rate, 250 burst pressure rating, and durable construction support fuel delivery under demanding operating conditions. For buyers searching for a fuel filter for Mitsubishi Fuso FK or Mitsubishi Fuso FM applications, the Wix 33504 provides a direct service replacement option with application-specific media and robust sealing components.

This part cross-references Baldwin BF7529 and Donaldson P550246 for the same application.

What It Helps Address

• Restricted fuel flow caused by contaminated fuel.
• Premature injector wear from fine debris in the fuel system.
• Leak concerns related to worn filter sealing surfaces.
• Service intervals that require a heavy-duty replacement filter.

Installation Notes and Tips

Verify thread size, height, and sealing surface dimensions before installation. Replace the filter at the OEM-recommended service interval and prime the fuel system as required by the vehicle service procedure. Confirm the application against the original equipment part number ME035394 when servicing Mitsubishi Fuso FK and Mitsubishi Fuso FM models.

Quality Assurance

Wix recommends this filter for OEM fuel filter change intervals. The filter uses corrosion-resistant metal components and superior sealing materials to support long service life in harsh operating conditions.