Wix 51333 Engine Oil Filter

WIX 51333 Engine Oil Filter Overview

The WIX 51333 engine oil filter is built for dependable oil filtration in everyday driving and severe service conditions. It is a spin-on lube filter with enhanced cellulose media, a 21-micron rating, and an anti-drain back valve for added protection during start-up.

Compatible With 1985-1986 Volvo 740, 1985 Volvo 745, 1983-1985 Volvo 760, and 1965-1971 Porsche 911 at the manufacturer OE recommended oil change intervals.

Key Features

• Part number: 51333
• Spin-on lube filter design with 3/4-16 thread size
• Enhanced cellulose filter media for oil contaminant capture
• Anti-drain back valve helps reduce dry starts after shutdown
• Bypass relief valve setting: 30
• Flow rate: 7-9 GPM
• Burst pressure: 300
• Outer diameter: 3.670 in.; height: 6.982 in.
• Micron rating: 21.00

Detailed Description

WIX 51333 is an engine oil filter engineered for conventional, synthetic, and synthetic-blended motor oils when used according to the OE vehicle manufacturer’s service schedule. It is designed to handle normal commuting as well as harsher conditions such as stop-and-go traffic, short trips, dirt roads, construction zones, and highway travel. The filter’s media and internal valve design support consistent oil flow while helping trap contaminants before they circulate through the engine.

This filter is a direct service part for Volvo 740, Volvo 745, Volvo 760, and Porsche 911 applications listed in the fitment data. If you are searching for a WIX 51333 oil filter for a Volvo 740 or a Porsche 911 oil filter replacement, this part matches the specified OE service intervals and filter dimensions.

This part cross-references NAPA Gold Filters 1333 and Purolator L 40316 for the same application.

What It Helps Address

• Oil contamination from dust, soot, and normal engine wear
• Dry-start wear after the vehicle sits between drives
• Reduced filtration performance during extended service intervals
• Pressure fluctuations during cold starts and high-flow operation
• Routine maintenance needs for Volvo and Porsche oil service

Installation Notes and Tips

Verify thread size, gasket sealing surface, and filter clearance before installation. Replace the filter at the OE-recommended oil change interval, typically 3,750 to 10,000 miles and not more than 12 months, depending on vehicle service requirements. Pre-fill only if the vehicle manufacturer allows it, and always check for leaks after startup.

Quality Assurance

WIX publishes laboratory test performance data for this filter family, including dirt-holding and efficiency results measured to ISO test standards. The 51333 is built to meet the demands of routine maintenance and severe-duty driving conditions while maintaining oil flow and contaminant capture.