HomeAir and Fuel Delivery > FiltersWix 33815 Fuel Filter - Secondary
Part #: 33815

Wix 33815 Fuel Filter - Secondary

Secondary
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Reliable Fuel Filtration for Heavy-Duty Vehicles

The Wix 33815 fuel filter is engineered to provide consistent fuel filtration performance for heavy-duty applications. Designed as a spin-on fuel filter, it features microglass media to ensure efficient contaminant removal and protect your engine's fuel system.

  • Beta Ratio: 2/20/75=2/3/4 for effective particle retention
  • Burst Pressure: 225 psi for durability under high pressure
  • Heavy-duty class and duty type for demanding environments
  • Height: 6.930 inches, Outer Diameter Top: 3.698 inches
  • Spin-on style with 13/16-12 thread size for secure installation
  • Micron rating of 2.00 for fine filtration
  • Microglass media material for enhanced dirt-holding capacity

Technical Details and Performance

The Wix 33815 fuel filter utilizes advanced microglass media that captures particles as small as 2 microns, helping to maintain clean fuel flow and protect injectors and pumps from wear. Its heavy-duty classification and 225 psi burst pressure rating make it suitable for vehicles operating under high stress or in challenging conditions. The spin-on design with a 13/16-12 thread size allows for straightforward replacement, while the closed inner diameter top ensures a secure seal. With a height of 6.930 inches and an outer diameter of 3.698 inches, this filter fits specific heavy-duty fuel systems requiring these dimensions.

Compatible Vehicles and Applications

This Wix fuel filter part number 33815 is compatible with a range of heavy-duty trucks and commercial vehicles that require a spin-on fuel filter with a 13/16-12 thread size and the specified dimensions. It is commonly used in diesel engines where reliable fuel filtration is critical to engine longevity and performance. For example, it suits certain models of Freightliner, Kenworth, and Peterbilt trucks that specify this filter size and rating.

  • Prevents fuel injector clogging and wear
  • Reduces engine performance issues caused by contaminated fuel
  • Protects fuel pumps from damage due to debris
  • Helps maintain consistent fuel pressure and flow
  • Minimizes downtime related to fuel system maintenance

Installation Notes and Tips

When installing the Wix 33815 fuel filter, ensure the engine is off and cooled down. Remove the old filter carefully to avoid fuel spillage. Lubricate the gasket on the new filter with clean fuel or oil before installation to ensure a proper seal. Tighten the filter according to manufacturer torque specifications to prevent leaks. After installation, prime the fuel system if necessary and check for leaks during initial engine operation.

Quality Assurance and Warranty

Wix filters are manufactured to meet stringent quality standards, ensuring reliable filtration performance in heavy-duty applications. The 33815 fuel filter is built with durable materials and tested for burst pressure and filtration efficiency. While specific warranty details are not provided here, Wix typically offers warranties covering defects in materials and workmanship. Consult Wix documentation or your vehicle manufacturer for warranty terms related to this part.

BrandWix
Part Number33815
BetaRatio2/20/75=2/3/4
Burst Pressure225
ClassHd
Duty TypeHd
Height6.930
Inner Diameter TopClosed
Media MaterialMicroglass
Micron2.00
Outer Diameter Top3.698
StyleSpin-on fuel filter
Thread Size13/16-12

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:

BF5815

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