HomeAir and Fuel Delivery > FiltersWix 33661 Fuel Filter
Part #: 33661

Wix 33661 Fuel Filter

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$24.26Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Fuel Filtration for Heavy-Duty Vehicles

The Wix 33661 fuel filter is designed to provide consistent fuel filtration for heavy-duty applications. Featuring enhanced cellulose media and a cartridge fuel metal canister style, this filter helps maintain engine performance and fuel system longevity in various vehicle makes and models.

  • Class: Hw (Heavy-duty classification)
  • Duty Type: Hd (Heavy-duty use)
  • Height: 4.876 inches
  • Inner Diameter Bottom: 0.63 inches
  • Inner Diameter Top: Closed
  • Outer Diameter Top and Bottom: 3.75 inches
  • Media Material: Enhanced cellulose for effective contaminant capture
  • Micron Rating: 7.00 for fine filtration
  • Style: Cartridge fuel metal canister

Detailed Product Description

The Wix 33661 fuel filter is engineered with enhanced cellulose media that efficiently traps contaminants down to 7 microns, protecting fuel injectors and engine components from wear and damage. Its cartridge fuel metal canister design ensures durability and ease of integration into compatible fuel systems. With a height of 4.876 inches and an outer diameter of 3.75 inches, this filter fits specific heavy-duty vehicle applications requiring precise dimensions. The closed inner diameter top and 0.63-inch inner diameter bottom facilitate secure fuel flow and filtration performance.

Applications and Problem Solving

  • Prevents fuel system clogging caused by dirt and debris
  • Reduces engine misfires and rough idling due to contaminated fuel
  • Protects fuel injectors from premature wear
  • Helps maintain optimal fuel pressure and flow
  • Supports heavy-duty vehicle fuel system reliability

Installation Notes and Tips

When installing the Wix 33661 fuel filter, ensure the vehicle’s fuel system is depressurized to avoid fuel spray. Verify the filter’s dimensions match the original equipment specifications, especially the 4.876-inch height and 3.75-inch outer diameter. The cartridge style requires proper seating within the metal canister housing to prevent leaks. Consult the vehicle’s service manual for specific installation procedures and torque specifications.

Quality Assurance and Warranty

Wix fuel filters are manufactured to meet industry standards for filtration efficiency and durability. The 33661 model undergoes rigorous quality control to ensure consistent performance in heavy-duty applications. While specific warranty details are not provided here, Wix typically offers coverage against manufacturing defects. Refer to official Wix documentation for complete warranty information.

BrandWix
Part Number33661
ClassHw
Duty TypeHd
Height4.876
Inner Diameter Bottom0.63
Inner Diameter TopClosed
Media MaterialEnhanced cellulose
Micron7.00
Outer Diameter Bottom3.75
Outer Diameter Top3.75
StyleCartridge fuel metal canister

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:

PF7687

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