Wix 51121 Engine Oil Filter

WIX 51121 Cartridge Oil Filter

The WIX 51121 is a cartridge-style engine oil filter built for older OE applications that call for a metal canister cartridge design. It is suited for conventional, synthetic, and synthetic-blended motor oils and is specified for normal and severe driving conditions, including stop-and-go traffic, dirt roads, construction sites, short trips, and interstate travel.

• Cartridge lube metal canister style for OE-style service applications
• Cellulose filter media for engine oil filtration
• 25 micron rating for routine contaminant capture
• 6.339 in. height, 3.778 in. outer diameter, 1.095 in. inner diameter bottom
• Recommended for OEM oil and filter change intervals, typically 3,750 to 10,000 miles
• Cross-references NAPA Gold Filters 1121 for the same application

Fitment and application details

Compatible With classic Buick, Cadillac, Oldsmobile, and Pontiac applications that use a cartridge oil filter. Fits 1954 Buick Skylark, N/A; Fits 1954-1958 Buick Century, N/A; Fits 1953-1958 Buick Roadmaster, N/A; Fits 1957-1958 Cadillac Eldorado, N/A; Fits 1950-1958 Oldsmobile 98, N/A; Fits 1954-1957 Oldsmobile 88, N/A; Fits 1954-1957 Oldsmobile Starfire, N/A; Fits 1959 Oldsmobile 98, N/A; Fits 1955-1959 Pontiac Catalina, N/A; Fits 1957-1959 Pontiac Bonneville, N/A; Fits 1955-1959 Pontiac Laurentian, N/A; Fits 1959 Pontiac Parisienne, N/A.

What this oil filter helps address

• Engine oil contamination from normal wear particles
• Reduced filtration performance during stop-and-go driving
• Oil service needs on vehicles using cartridge-type filter housings
• Routine maintenance for classic GM and Pontiac applications
• Filtration demands from mixed driving conditions and short-trip use

Installation notes and tips

Verify the cartridge housing style and dimensions before installation. Replace the filter at the manufacturer-recommended oil change interval and follow the vehicle OE service schedule. Use the correct oil type for the engine and inspect the housing sealing surfaces during service. This part number is WIX 51121.

Quality assurance

WIX positions this filter for OEM-recommended service intervals and for use with conventional, synthetic, and synthetic-blended oils. The design is intended for dependable filtration in normal and severe driving conditions, including classic Buick, Oldsmobile, Cadillac, and Pontiac applications. Part number 51121 is also listed as WIX 51121.