Wix 51381 Engine Oil Filter

Reliable Engine Oil Filtration for Select Chrysler and Dodge Models

The Wix 51381 engine oil filter is designed to provide consistent oil filtration for a range of vehicles including Chrysler, Dodge, Hyundai, and Mitsubishi models. Engineered with enhanced cellulose media and a spin-on style, this filter supports efficient engine performance and protection.

• Anti-Drain Back Valve to prevent dry starts
• BetaRatio of 2/20=6/20 for effective contaminant removal
• Burst Pressure rated at 275 psi for durability
• Bypass Relief Valve setting between 13-19 psi to maintain oil flow
• Flow rate of 9-11 gallons per minute suitable for light-duty engines
• Spin-on lube filter style with 20x1.5 mm thread size
• Height of 3.15 inches and outer diameter of 3.661 inches
• Media material: enhanced cellulose with 21 micron filtration rating

Technical Details and Performance Attributes

The Wix 51381 oil filter features an anti-drain back valve that helps maintain oil pressure during engine shutdown, reducing wear during startup. Its enhanced cellulose media provides a 21-micron filtration rating, balancing contaminant capture with flow efficiency. The filter’s BetaRatio of 2/20=6/20 indicates its ability to remove particles effectively while maintaining oil flow between 9 and 11 gallons per minute. The bypass relief valve is calibrated between 13 and 19 psi to ensure oil continues circulating even if the filter becomes clogged, protecting the engine from oil starvation. With a burst pressure rating of 275 psi, this filter is built to withstand high-pressure conditions common in light-duty engines.

Compatible Vehicles and Applications

This Wix 51381 engine oil filter is compatible with a variety of vehicles, including Chrysler models like the Caravan, LeBaron, and Town & Country; Dodge models such as the Challenger and Power Ram 50; as well as Hyundai, Isuzu, Mazda, Mitsubishi, Plymouth, and Pontiac vehicles. It is suitable for engines requiring a spin-on lube filter with a 20x1.5 mm thread size and specific dimensions of 3.15 inches in height and 3.661 inches outer diameter.

• Prevents engine wear caused by contaminated oil
• Maintains oil pressure during engine shutdown
• Protects against oil starvation with bypass valve
• Ensures consistent oil flow for light-duty engines
• Reduces risk of filter collapse under high pressure

Installation Notes and Tips

When installing the Wix 51381 oil filter, ensure the engine is cool to avoid burns. Apply a thin layer of clean engine oil to the rubber gasket before threading the filter onto the engine to ensure a proper seal. Tighten the filter according to manufacturer specifications, typically hand-tight plus a quarter turn. Check for leaks after installation and during initial engine operation. This filter’s spin-on design allows for straightforward replacement on compatible Chrysler, Dodge, and other listed vehicles.

Quality Assurance and Warranty Information

Wix filters are manufactured to meet industry standards for filtration and durability. The 51381 model is classified as Class A and designed for light-duty (Ld) applications, ensuring reliable performance under typical operating conditions. While specific warranty details may vary, Wix generally offers coverage against defects in materials and workmanship. Always refer to Wix’s official documentation for complete warranty terms.