Wix 33398 Fuel Filter

Overview of Wix 33398 Spin-On Fuel Filter

The Wix 33398 fuel filter is designed to provide reliable fuel filtration for various heavy-duty vehicles. Featuring a spin-on style and enhanced cellulose media, this filter supports efficient fuel flow and protects engine components from contaminants.

• Spin-on fuel filter design for easy installation
• Enhanced cellulose media with 19-micron filtration
• Flow rate between 7 to 9 gallons per minute (gpm)
• Burst pressure rating of 295 psi for durability
• Thread size 3/4-16 with a closed inner diameter top
• Height of 4.720 inches and outer diameter top of 3.720 inches
• Class Hb and heavy-duty (Hd) duty type rating

Technical Details and Specifications

The Wix 33398 fuel filter is engineered with enhanced cellulose media that filters particles down to 19 microns, ensuring clean fuel delivery to the engine. Its spin-on style allows for straightforward replacement without the need for additional tools. The filter supports a flow rate of 7 to 9 gallons per minute, suitable for heavy-duty applications requiring consistent fuel supply. With a burst pressure of 295 psi, it maintains structural integrity under demanding conditions. The filter measures 4.720 inches in height and 3.720 inches in outer diameter at the top, with a closed inner diameter top and a 3/4-16 thread size, making it compatible with specific fuel systems.

Compatible Vehicles and Applications

This Wix 33398 fuel filter is compatible with a range of heavy-duty trucks and commercial vehicles that require a spin-on fuel filter with these specifications. It is commonly used in diesel engines where fuel cleanliness and flow rate are critical. For example, it fits certain models of Freightliner, Kenworth, and Peterbilt trucks, among others. Always verify fitment with your vehicle’s make and model to ensure compatibility.

Common Issues Addressed by Wix 33398 Fuel Filter

• Prevents fuel system clogging caused by dirt and debris
• Reduces engine wear by filtering contaminants
• Maintains optimal fuel flow for engine performance
• Protects fuel injectors from damage
• Helps avoid fuel pump failure due to contamination

Installation Notes and Tips

When installing the Wix 33398 fuel filter, ensure the engine is off and cooled down. Remove the old filter by unscrewing the spin-on unit, taking care to catch any fuel spillage. Lubricate the gasket of the new filter with clean fuel or oil before installation to ensure a proper seal. Screw the new filter on by hand until the gasket contacts the mounting surface, then tighten according to manufacturer specifications. Check for leaks after installation and prime the fuel system if necessary.

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for filtration and durability. The 33398 model is built to withstand heavy-duty use with a burst pressure rating of 295 psi and a heavy-duty class rating (Hb, Hd). While specific warranty details are not provided here, Wix typically offers warranties covering defects in materials and workmanship. Consult Wix or your parts provider for exact warranty terms related to this fuel filter.