Wix 33120 Fuel Filter - Secondary

Overview of Wix 33120 Spin-On Fuel Filter

The Wix 33120 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 helps maintain fuel system integrity and engine performance.

• Spin-on fuel filter design for easy installation
• Enhanced cellulose media with 10 micron filtration
• Flow rate of 12 gallons per minute (gpm)
• Burst pressure rated at 225 psi
• Thread size 13/16-12 for secure fitment
• Height of 6.930 inches and outer diameter of 3.698 inches
• Class Ha and heavy-duty duty type for demanding applications

Technical Details and Specifications

The Wix 33120 fuel filter utilizes enhanced cellulose media to effectively capture contaminants down to 10 microns, protecting fuel injectors and engine components from damage. Its spin-on style allows for straightforward replacement without the need for special tools. The filter supports a flow rate of 12 gpm, suitable for heavy-duty diesel and gasoline engines requiring consistent fuel delivery. With a burst pressure rating of 225 psi, it withstands high-pressure fuel system conditions. The filter measures 6.930 inches in height and 3.698 inches in outer diameter, with a closed inner diameter top and a 13/16-12 thread size ensuring compatibility with specific vehicle fuel systems.

Compatible Vehicles and Applications

The Wix 33120 fuel filter is compatible with a range of heavy-duty trucks and commercial vehicles that require a Class Ha fuel filter with a 13/16-12 thread size. It is commonly used in diesel engines where reliable fuel filtration is critical to engine longevity and performance. This filter suits applications demanding a heavy-duty duty type and high flow rate, such as freight trucks, construction equipment, and agricultural machinery.

Common Issues Addressed by Wix 33120 Fuel Filter

• Prevents fuel injector clogging caused by dirt and debris
• Reduces engine wear from contaminated fuel
• Maintains consistent fuel flow under high-pressure conditions
• Protects fuel pump from premature failure
• Improves overall engine efficiency and reliability

Installation Notes and Tips

When installing the Wix 33120 fuel filter, ensure the engine is off and fuel system pressure is relieved. The spin-on design allows for hand-tightening; avoid over-tightening to prevent damage to the filter or mounting threads. Verify the thread size (13/16-12) matches the vehicle’s fuel filter housing. Replace the filter at manufacturer-recommended intervals or when fuel system performance issues arise.

Quality Assurance and Warranty

Wix fuel filters are manufactured to meet industry standards for filtration efficiency and durability. The 33120 model is built to withstand heavy-duty operating conditions with consistent performance. While specific warranty details are not provided here, Wix products typically come with a limited warranty against defects in materials and workmanship. Consult Wix documentation or vehicle manufacturer guidelines for warranty coverage and maintenance schedules.