Wix 51049 Engine Oil Filter

WIX 51049 Engine Oil Filter Overview

The WIX 51049 is a spin-on engine oil filter built for heavy-duty service in medium and heavy trucks, farm equipment, construction equipment, mining equipment, and other demanding applications. It uses enhanced cellulose media and a high-capacity design to support OEM oil and filter change intervals while helping maintain clean oil flow.

Compatible With classic Jeep CJ5 and Wagoneer applications, plus a wide range of Cadillac, Buick, Oldsmobile, and Pontiac engines from the 1959-1971 model years. The WIX 51049 is also cross-referenced by NAPA Gold Filters 1049 for the same application.

Key Features

• Spin-on lube filter design with 13/16-16 thread size
• Enhanced cellulose media for efficient contaminant capture
• 21 micron rating for fine particle filtration
• 9-11 GPM flow rate for high-demand lubrication systems
• 260 burst pressure rating for durability under operating pressure
• No anti-drain back valve and no bypass relief valve setting
• Corrosion-resistant can, center tube, and end caps
• Closed top inner diameter and 3.660-inch outer diameter top

Detailed Description

WIX 51049 is an engine oil filter engineered for heavy-duty use where consistent oil filtration matters. Its enhanced cellulose media and high-capacity construction help trap wear particles while supporting steady oil circulation in engines that see regular service intervals. The corrosion-resistant housing and sealing components are built for leak resistance and long service life under varied operating conditions.

This filter is a direct service choice for vehicles such as the 1966-1971 Jeep CJ5, 1967-1971 Jeep Wagoneer, and select Cadillac, Buick, Oldsmobile, and Pontiac models including DeVille, Eldorado, Riviera, Cutlass, GTO, and Tempest. The WIX 51049 also appears in interchange listings with NAPA Gold Filters 1049, making cross-reference verification straightforward during maintenance planning.

What It Helps Address

• Engine oil contamination from normal wear
• Reduced filtration performance during extended service intervals
• Oil leakage concerns from worn filter sealing surfaces
• Pressure-related filter stress in demanding duty cycles
• Maintenance needs on classic and heavy-duty engine applications

Installation Notes and Tips

Verify thread size, gasket sealing surface, and overall filter dimensions before installation. Because this filter does not use an anti-drain back valve and has no bypass relief valve setting, confirm the application matches the engine’s original oil filter requirements. Follow the manufacturer’s recommended oil and filter change intervals for the vehicle or equipment.

For fitment verification, use the vehicle listing exactly as shown: Fits 1966-1971 Jeep CJ5, N/A; Fits 1967-1971 Jeep Wagoneer, N/A; Fits 1960-1967 Cadillac DeVille, N/A; Fits 1964-1966 Pontiac GTO, N/A.

Quality Assurance

WIX builds this oil filter with high-strength, corrosion-resistant components and sealing materials intended to support reliable service in harsh operating environments. The 51049 is specified for OEM oil and filter change intervals and is backed by WIX manufacturing standards for heavy-duty filtration applications.