HomeAir and Fuel Delivery > FiltersWix 33644 Fuel Filter - Secondary
Part #: 33644

Wix 33644 Fuel Filter - Secondary

Secondary
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Overview of Wix 33644 Spin-On Fuel Filter

The Wix 33644 fuel filter is designed to provide reliable fuel filtration for heavy-duty applications. Featuring a spin-on style with enhanced cellulose media, this filter helps maintain fuel system cleanliness and engine performance in vehicles such as Ford F-Series and Chevrolet Silverado trucks.

  • Spin-on fuel filter design for easy installation
  • Enhanced cellulose media with 3 micron filtration for effective contaminant removal
  • Plastic ends with a 30x1.5 mm thread size for secure fitment
  • 8.000 inch height and 4.275 inch outer diameter for precise compatibility
  • Closed inner diameter top to ensure proper sealing and flow

Detailed Product Description

The Wix 33644 fuel filter is engineered with enhanced cellulose media that filters particles down to 3 microns, protecting fuel injectors and engine components from contaminants. Its heavy-duty (Hd) duty type classification makes it suitable for demanding environments and extended service intervals. The spin-on style allows for straightforward replacement without the need for additional tools or adapters. The plastic ends and 30x1.5 mm thread size ensure a secure and leak-free connection in compatible fuel systems. With an 8-inch height and 4.275-inch outer diameter, this filter fits specific vehicle applications requiring these dimensions.

Applications and Problem Solving

  • Prevents fuel system clogging caused by dirt and debris
  • Reduces wear on fuel injectors and pumps by filtering fine particles
  • Helps maintain consistent engine performance and fuel efficiency
  • Protects against fuel contamination in heavy-duty trucks like Ford F-250 and Chevrolet Silverado 2500HD
  • Minimizes risk of engine stalling or hesitation due to fuel impurities

Installation Notes and Tips

When installing the Wix 33644 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 plastic ends or thread. Verify the thread size (30x1.5 mm) matches the vehicle’s fuel filter housing. Inspect the sealing surfaces for debris before installation to ensure a proper seal.

Quality Assurance and Warranty

Wix fuel filters are manufactured to meet industry standards for filtration efficiency and durability. The 33644 model undergoes rigorous quality control to ensure consistent performance in heavy-duty applications. While specific warranty details are not provided here, Wix products typically come with manufacturer-backed warranties covering defects in materials and workmanship.

BrandWix
Part Number33644
ClassHc
Duty TypeHd
EndsPlastic
Height8.000
Inner Diameter TopClosed
Media MaterialEnhanced cellulose
Micron3.00
Outer Diameter Top4.275
StyleSpin-on fuel filter
Thread Size30x1.5 mm

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

25100073483GB476M

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.