Wix 33721 Fuel Filter - Secondary

Reliable Fuel Filtration for Your Vehicle

The Wix 33721 fuel filter is designed to provide consistent fuel filtration performance for a range of vehicles. Engineered with enhanced cellulose media, this spin-on fuel filter helps maintain fuel system cleanliness and engine efficiency.

• Burst pressure rating of 340 psi for durability under high stress
• Class Ha rating ensuring high-quality filtration standards
• Collapsed pressure rating of 150 psi to maintain structural integrity
• Flow rate between 14-16 gallons per minute for optimal fuel delivery
• Spin-on style with 32x1.5 mm thread size for secure installation
• 5 micron filtration media to capture fine contaminants
• Height of 10.382 inches with outer diameters of 4.43 inches (top) and 4.32 inches (bottom)

Technical Details and Construction

The Wix 33721 fuel filter features enhanced cellulose media that effectively traps particles down to 5 microns, protecting your engine from harmful debris. Its heavy-duty duty type and Class Ha rating ensure it meets rigorous filtration requirements. The spin-on design with a 32x1.5 mm thread size allows for straightforward replacement and a secure fit. With a burst pressure of 340 psi and a collapsed pressure rating of 150 psi, this filter maintains performance under demanding conditions. The flow rate of 14-16 gallons per minute supports consistent fuel delivery, which is critical for engine operation.

Compatible Vehicles and Applications

This Wix fuel filter 33721 is compatible with various makes and models requiring a spin-on fuel filter with these specifications. It is commonly used in automotive applications where a 5 micron filtration rating and a 32x1.5 mm thread size are specified. For example, it suits certain Ford, Chevrolet, and Dodge models that require a heavy-duty fuel filter with these dimensions and flow characteristics.

• Prevents fuel system contamination and clogging
• Reduces engine misfires caused by dirty fuel
• Protects fuel injectors and pumps from damage
• Maintains consistent fuel flow for engine performance
• Helps avoid premature engine wear due to contaminants

Installation Notes and Tips

When installing the Wix 33721 fuel filter, ensure the engine is cool and relieve fuel system pressure before removal. The spin-on design simplifies replacement; apply a light coat of clean fuel or oil to the gasket before threading the filter to ensure a proper seal. Tighten according to manufacturer specifications to avoid leaks or damage. Always check for leaks after installation and start the engine to verify proper fuel flow.

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for filtration and durability. The 33721 fuel filter undergoes rigorous testing to ensure it meets burst and collapsed pressure ratings. While specific warranty details are not provided here, Wix typically offers coverage against defects in materials and workmanship. Refer to Wix documentation for complete warranty information.