Wix 51791 Engine Oil Filter - Full Flow

Reliable Engine Oil Filtration for Heavy-Duty Vehicles

The Wix 51791 engine oil filter is designed to provide consistent oil filtration for heavy-duty applications. Engineered with enhanced cellulose media, this spin-on lube filter supports optimal engine performance by maintaining clean oil flow in various vehicle makes and models.

• Enhanced cellulose media for effective filtration at 20 micron rating
• Heavy-duty duty type (Hd) suitable for demanding engine conditions
• Spin-on style with 1 1/8-16 thread size for straightforward installation
• Flow rate between 18-20 gallons per minute to support engine lubrication needs
• High burst pressure rating of 330 psi for durability under pressure
• Beta ratio of 2/20=11/25 ensuring efficient contaminant removal
• Height of 10.365 inches and outer diameter of 4.282 inches for proper fitment

Technical Details and Performance Attributes

The Wix 51791 oil filter features a spin-on design with a closed inner diameter top, eliminating the need for an anti-drain back valve. Its enhanced cellulose media provides a 20 micron filtration rating, balancing contaminant capture with oil flow. The filter’s beta ratio of 11/25 at 2/20 microns indicates its capability to trap particles effectively, while the 330 psi burst pressure rating ensures structural integrity under high-pressure conditions. With a flow rate of 18 to 20 gallons per minute, this filter supports continuous engine lubrication, making it suitable for heavy-duty engines requiring reliable oil filtration.

Compatible Vehicles and Applications

The Wix 51791 engine oil filter is compatible with a range of heavy-duty trucks and commercial vehicles. It is commonly used in diesel engines requiring a 1 1/8-16 thread size and spin-on filter style. This filter is suitable for applications where enhanced cellulose media and a 20 micron rating meet the engine’s oil filtration requirements. Vehicle owners and fleet managers looking for dependable filtration for models such as Freightliner, Kenworth, Peterbilt, and similar heavy-duty trucks will find this filter appropriate for maintaining engine health.

Common Issues Addressed by Wix 51791 Oil Filter

• Prevents engine wear caused by contaminants in the oil
• Maintains consistent oil flow to critical engine components
• Reduces risk of oil filter collapse under high pressure
• Helps avoid engine damage from clogged or inefficient filters
• Supports extended engine life through effective filtration

Installation Notes and Tips

When installing the Wix 51791 oil filter, ensure the engine is cool to avoid burns. Verify the thread size (1 1/8-16) matches the vehicle’s filter mount. Apply a light coat of clean engine oil to the gasket before installation to ensure a proper seal. Tighten the filter according to manufacturer specifications, typically hand-tight plus a quarter turn. Regularly inspect the filter for leaks after installation and replace it according to the vehicle’s maintenance schedule.

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for filtration efficiency and durability. The 51791 model undergoes rigorous testing to ensure it withstands high burst pressures and maintains flow rates suitable for heavy-duty engines. While specific warranty details are not provided, Wix products generally come with a limited warranty against defects in materials and workmanship. For detailed warranty information, consult Wix’s official documentation or authorized distributors.