HomeAir and Fuel Delivery > FiltersWix 33960 Fuel Water Separator Filter
Part #: 33960

Wix 33960 Fuel Water Separator Filter

⚙️ 40 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Silverado 3500, and Sierra 3500
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Overview of Wix 33960 Fuel Water Separator Filter

The Wix 33960 fuel water separator filter is designed to provide reliable fuel filtration for heavy-duty Chevrolet and GMC trucks. Specifically engineered for models like the Sierra 2500 HD and Silverado 3500 HD, this spin-on filter helps protect your engine by removing water and contaminants from diesel fuel.

  • Class Ha heavy-duty fuel water separator filter
  • Enhanced cellulose media for efficient filtration
  • 7 micron filtration rating to capture fine particles
  • Spin-on style with 3 3/8-8 thread size for secure installation
  • Dimensions: 6.3 inches height, 3.96 inches outer diameter top, 3.47 inches outer diameter bottom
  • Closed inner diameter top design

Detailed Product Description

The Wix 33960 fuel water separator filter features enhanced cellulose media that effectively filters out water and particulate contaminants down to 7 microns. This filtration capability is critical for maintaining fuel system integrity and preventing damage to fuel injectors and engine components. The filter’s spin-on design with a 3 3/8-8 thread size allows for straightforward installation and replacement. Its dimensions—6.3 inches in height with a 3.96-inch outer diameter at the top and 3.47 inches at the bottom—ensure compatibility with specified Chevrolet and GMC heavy-duty truck models.

Compatible Vehicles and Applications

This fuel water separator filter is compatible with a range of Chevrolet and GMC heavy-duty trucks, including:

  • Chevrolet Sierra 2500 HD and Sierra 2500 HD Classic
  • Chevrolet Sierra 3500, Sierra 3500 Classic, and Sierra 3500 HD
  • Chevrolet Silverado 2500 HD and Silverado 2500 HD Classic
  • Chevrolet Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD

Common Issues Addressed by Wix 33960 Filter

  • Prevents water contamination in diesel fuel systems
  • Reduces clogging and wear in fuel injectors
  • Protects engine components from particulate damage
  • Improves fuel system reliability and performance
  • Helps maintain optimal engine operation under heavy-duty conditions

Installation Notes and Tips

  • Ensure the engine is off and cooled before filter replacement
  • Use the correct thread size (3 3/8-8) to avoid cross-threading
  • Lubricate the gasket with clean fuel or oil before installation
  • Tighten the filter according to manufacturer torque specifications
  • Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for heavy-duty applications. The 33960 fuel water separator filter undergoes rigorous quality control to ensure consistent filtration 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 applicable to this part number.

BrandWix
Part Number33960
ClassHA
Duty TypeHD
Height6.3
Inner Diameter TopClosed
Media MaterialEnhanced Cellulose
Micron7.00
Outer Diameter Bottom3.47
Outer Diameter Top3.96
StyleSpin On Fuel Water Separator w
Thread Size3 3/8-8

This part fits 40 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2009ChevroletSilverado 2500 HD6.6LV8N/A
2009ChevroletSilverado 3500 HD6.6LV8N/A
2009GMCSierra 2500 HD6.6LV8N/A
2009GMCSierra 3500 HD6.6LV8N/A
2008ChevroletSilverado 2500 HD6.6LV8N/A
2008ChevroletSilverado 3500 HD6.6LV8N/A
2008GMCSierra 2500 HD6.6LV8N/A
2008GMCSierra 3500 HD6.6LV8N/A
2007ChevroletSilverado 2500 HD6.6LV8N/A
2007ChevroletSilverado 2500 HD Classic6.6LV8N/A
2007ChevroletSilverado 3500 Classic6.6LV8N/A
2007ChevroletSilverado 3500 HD6.6LV8N/A
2007GMCSierra 2500 HD6.6LV8DIESELN/A
2007GMCSierra 2500 HD Classic6.6LV8N/A
2007GMCSierra 3500 Classic6.6LV8N/A
2007GMCSierra 3500 HD6.6LV8DIESELN/A
2006ChevroletSilverado 2500 HD6.6LV8N/A
2006ChevroletSilverado 35006.6LV8N/A
2006GMCSierra 2500 HD6.6LV8N/A
2006GMCSierra 35006.6LV8N/A
2005ChevroletSilverado 2500 HD6.6LV8N/A
2005ChevroletSilverado 35006.6LV8N/A
2005GMCSierra 2500 HD6.6LV8DIESELN/A
2005GMCSierra 35006.6LV8DIESELN/A
2004ChevroletSilverado 2500 HD6.6LV8N/AOriginal Equipment Part Number 19255090
2004ChevroletSilverado 35006.6LV8N/AOriginal Equipment Part Number 19255090
2004GMCSierra 2500 HD6.6LV8N/A
2004GMCSierra 35006.6LV8N/A
2003ChevroletSilverado 2500 HD6.6LV8N/A
2003ChevroletSilverado 35006.6LV8N/A
2003GMCSierra 2500 HD6.6LV8N/A
2003GMCSierra 35006.6LV8N/A
2002ChevroletSilverado 2500 HD6.6LV8N/A
2002ChevroletSilverado 35006.6LV8N/A
2002GMCSierra 2500 HD6.6LV8N/A
2002GMCSierra 35006.6LV8N/A
2001ChevroletSilverado 2500 HD6.6LV8N/A
2001ChevroletSilverado 35006.6LV8N/A
2001GMCSierra 2500 HD6.6LV8N/A
2001GMCSierra 35006.6LV8N/A

* 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:

LFF6012LFF8736LFF8736B

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