Baldwin B31 Engine Oil Filter

Reliable Engine Oil Filtration for Select GM and AMC Vehicles

The Baldwin B31 engine oil filter is designed to provide dependable oil filtration for a range of light-duty trucks, vans, and passenger vehicles. Engineered to meet the specifications of various Buick, Chevrolet, GMC, and other makes, this filter helps maintain engine performance and longevity.

• Includes an attached gasket for secure sealing
• Equipped with an anti-drainback valve to prevent dry starts
• Height: 3 1/2 inches (88.9 mm)
• Outside diameter: 3 inches (76.2 mm)
• Thread size: 13/16 inch
• Replaces GMC part number 25010251
• Compatible with AMC, GM automotive, light-duty trucks, and vans

Detailed Product Description

The Baldwin B31 engine oil filter is specifically designed to fit a wide range of vehicles including Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Jeep, Oldsmobile, Pontiac, and Saab models. This filter features an attached gasket that ensures a tight seal to prevent oil leaks during operation. The built-in anti-drainback valve helps maintain oil pressure by preventing oil from draining out of the filter when the engine is off, reducing wear during startup.

With a height of 3 1/2 inches and an outside diameter of 3 inches, the B31 matches OEM dimensions for proper fitment. The 13/16 inch thread size allows for easy installation on compatible engines. This filter replaces the GMC 25010251, making it a suitable aftermarket option for maintaining engine oil cleanliness and protecting engine components.

Compatible Vehicles and Applications

• Buick models such as Century, LeSabre, and Regal
• Chevrolet trucks including Silverado 1500, Colorado, and Avalanche 1500
• GMC light-duty trucks and vans like Sierra 1500, Savana 1500, and Canyon
• Cadillac Escalade and CTS
• Jeep Cherokee and Grand Wagoneer
• Other compatible makes include Hummer H2, Isuzu i-280, Pontiac Grand Prix, Saab 9-7x, and Oldsmobile Alero

Common Issues Addressed by the Baldwin B31 Oil Filter

• Prevents engine wear caused by contaminated oil
• Reduces risk of oil leaks with attached gasket design
• Minimizes dry starts through anti-drainback valve functionality
• Maintains consistent oil pressure for engine protection
• Ensures proper fitment to avoid installation issues

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Ensure the old oil filter gasket is removed to prevent double gasket sealing
• Lubricate the attached gasket with clean engine oil before installation for a proper seal
• Tighten the filter according to manufacturer torque specifications to avoid leaks or damage
• Check for leaks after installation and engine startup

Quality Assurance and Warranty

Baldwin engine oil filters are manufactured to meet industry standards for filtration efficiency and durability. The B31 is built to provide reliable performance under normal operating conditions. While specific warranty details may vary, Baldwin typically offers coverage against defects in materials and workmanship. Consult Baldwin’s warranty information for exact terms related to this part number.