Wix 51801 Engine Oil Filter

Reliable Engine Oil Filtration for Heavy-Duty Vehicles

The Wix 51801 engine oil filter is designed to provide dependable filtration for heavy-duty applications. Engineered with cellulose media and a spin-on lube filter style, it supports efficient oil flow and protection for your engine components.

• Spin-on lube filter design for easy installation
• Cellulose media with 25-micron filtration rating
• Heavy-duty duty type (Hd) suitable for demanding engine conditions
• Burst pressure rated at 300 psi for durability
• Flow rate between 28-30 gallons per minute
• Thread size of 1 1/2-16 for secure fitment
• Height of 9.935 inches and outer diameter of 5.342 inches
• Closed inner diameter top for compatibility with standard tube layout

Technical Details and Performance

The Wix 51801 oil filter features cellulose media that effectively captures contaminants down to 25 microns, helping to maintain engine cleanliness and prolong engine life. Its heavy-duty classification (Hd) and class Hc rating indicate suitability for robust engine environments. The filter’s burst pressure of 300 psi ensures it withstands high-pressure conditions without failure. Designed as a spin-on lube filter, it simplifies replacement and maintenance. The filter does not include an anti-drain back valve or bypass relief valve, which is typical for certain heavy-duty applications where these features are not required.

Compatible Vehicles and Applications

This engine oil filter is compatible with a range of heavy-duty trucks and commercial vehicles requiring a 1 1/2-16 thread size and specific dimensions. It is commonly used in diesel engines where high flow rates of 28-30 gpm are necessary. The Wix 51801 is suitable for applications demanding reliable filtration without anti-drain back valve features, often found in certain Ford, Freightliner, and International truck models. Always verify fitment with your vehicle’s specifications before purchase.

• Helps prevent engine wear caused by dirt and debris
• Reduces risk of oil starvation under high flow conditions
• Maintains oil cleanliness to support engine performance
• Protects against filter collapse under high pressure
• Supports extended oil change intervals in heavy-duty use

Installation Notes and Tips

When installing the Wix 51801 oil filter, ensure the engine is cool to avoid burns. Apply a thin layer of clean engine oil to the gasket before threading the filter onto the engine to ensure a proper seal. Tighten the filter according to manufacturer torque specifications, typically hand-tight plus a quarter turn. Since this filter lacks an anti-drain back valve, expect some oil drainage during filter changes. Dispose of the used filter according to local environmental regulations.

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for filtration efficiency and durability. The 51801 model undergoes rigorous testing to ensure burst pressure and flow rate specifications are met. While specific warranty details are not provided here, Wix generally offers warranties covering defects in materials and workmanship. Consult Wix documentation or your supplier for warranty terms related to this part number.