HomeAir and Fuel Delivery > FiltersWix 33689 Fuel Filter
Part #: 33689

Wix 33689 Fuel Filter

⚙️ 13 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$25.42Free 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
🚗Fitment: Buick, Chevrolet, Pontiac, and Oldsmobile, Rendezvous, Venture, Aztek, Montana, and Silhouette
🔄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 Buick, Oldsmobile, and Pontiac Vehicles

The Wix 33689 fuel filter is designed to provide consistent fuel filtration for select Buick, Oldsmobile, and Pontiac models. Engineered to meet the demands of light-duty applications, this fuel filter helps maintain engine performance by effectively removing contaminants from the fuel system.

  • Class W fuel filter suitable for light-duty use
  • Complete in-line fuel filter style with 3/8 inch inlet and outlet
  • Cellulose media material with 7 micron filtration rating
  • Dimensions: 6.73 inches height, 2.22 inches outer diameter top and bottom
  • Compatible with Buick Rendezvous, Pontiac Aztek, Montana, and Oldsmobile Silhouette

Technical Specifications and Features

The Wix 33689 fuel filter features a cellulose media material that provides a 7 micron filtration rating, effectively capturing fine particles to protect your fuel system. Its complete in-line style design includes both 3/8 inch inlet and outlet ports, ensuring a secure and proper fit within the fuel line. The filter measures 6.73 inches in height with an outer diameter of 2.22 inches on both the top and bottom, making it compatible with specific GM models. The inner diameter at the top is closed, which is typical for this filter style, and it is classified as a Class W filter designed for light-duty (Ld) applications.

Compatible Vehicles and Applications

This Wix fuel filter is compatible with several GM vehicles, including Buick Rendezvous, Pontiac Aztek, Pontiac Montana, and Oldsmobile Silhouette. It is intended for use in fuel delivery systems where maintaining clean fuel flow is critical to engine operation and longevity.

  • Prevents fuel contamination in Buick Rendezvous and Pontiac Aztek
  • Maintains fuel system integrity in Pontiac Montana and Oldsmobile Silhouette
  • Helps reduce engine performance issues related to fuel impurities
  • Supports smooth fuel flow and combustion efficiency

Installation Notes and Tips

When installing the Wix 33689 fuel filter, ensure the vehicle is parked on a level surface and the engine is cool. Relieve fuel system pressure before removal of the old filter. Confirm the inlet and outlet ports align correctly with the fuel lines, both sized at 3/8 inch. Properly secure all connections to prevent leaks. Dispose of the old filter according to local regulations.

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for fuel filtration. The 33689 fuel filter undergoes rigorous quality control to ensure consistent performance. While specific warranty details may vary, Wix typically offers coverage against defects in materials and workmanship. Refer to Wix documentation for exact warranty terms.

BrandWix
Part Number33689
ClassW
Duty TypeLD
Height6.730
Inlet3/8
Inner Diameter TopClosed
Media MaterialCellulose
Micron7.00
Outer Diameter Bottom2.220
Outer Diameter Top2.220
Outlet3/8
StyleFuel (Complete In-Line) Filter

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005BuickRendezvous3.4LV6N/A
2005BuickRendezvous3.6LV6N/A
2005PontiacAztek3.4LV6N/A
2005PontiacMontana3.4LV6N/A
2005PontiacMontana3.5LV6N/A
2004BuickRendezvous3.4LV6N/Awith Two Male Ends
2004BuickRendezvous3.6LV6N/Awith Two Male Ends
2004OldsmobileSilhouette3.4LV6N/A
2004PontiacAztek3.4LV6N/Awith Two Male Ends
2004PontiacMontana3.4LV6N/A
2003BuickRendezvous3.4LV6N/Awith Two Male Ends
2003OldsmobileSilhouette3.4LV6N/Awith Two Male Ends
2003PontiacMontana3.4LV6N/Awith Two Male Ends

* 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:

G6896KL812

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