Baldwin B109 Engine Oil Filter

Overview of Baldwin B109 Engine Oil Filter

The Baldwin B109 engine oil filter is designed for reliable oil filtration in select Chevrolet and Isuzu vehicles, including the Chevette, Corvette, and I-Mark models. Engineered to meet specific OEM requirements, this filter helps maintain engine performance and longevity.

• Includes anti-drainback valve and 20 psid by-pass valve for optimal oil flow
• Compatible with Chevrolet Chevette, Corvette, and Isuzu I-Mark
• Thread size: M20 x 1.5 for secure installation
• Height: 5 5/16 inches (134.9 mm); Outside diameter: 3 3/4 inches (95.3 mm)
• Integral gasket included for proper sealing
• Replaces GMC part number 94428931

Technical Details and Specifications

The Baldwin B109 engine oil filter features an anti-drainback valve that prevents oil from draining out of the filter when the engine is off, reducing dry starts and wear. The 20 psid by-pass valve ensures continuous oil flow even if the filter media becomes clogged, protecting the engine from oil starvation. With a thread size of M20 x 1.5, this filter fits securely on compatible engines. Its dimensions—5 5/16 inches in height and 3 3/4 inches in outside diameter—match OEM specifications for a proper fit. The included integral gasket ensures a tight seal to prevent leaks during operation.

Compatible Vehicles and Applications

This Baldwin B109 oil filter is compatible with various automotive and equipment applications, specifically designed for Chevrolet and Isuzu vehicles such as the Chevette, Corvette, and I-Mark. It also fits certain Caterpillar, Kobelco, Mustang equipment, GMC, and Isuzu automotive models, making it a versatile choice for engine oil filtration needs.

Common Issues Addressed by Baldwin B109

• Prevents oil starvation during engine startup with anti-drainback valve
• Maintains oil flow under high pressure with 20 psid by-pass valve
• Ensures proper sealing to avoid oil leaks with integral gasket
• Replaces worn or clogged filters to maintain engine cleanliness
• Compatible replacement for GMC 94428931 to maintain OEM standards

Installation Notes and Tips

When installing the Baldwin B109 engine oil filter, ensure the engine is cool to avoid burns. Apply a light coat of clean engine oil to the integral gasket before installation to improve sealing and ease removal. Tighten the filter according to manufacturer torque specifications to prevent leaks or damage. Verify thread compatibility (M20 x 1.5) with your vehicle’s engine before installation.

Quality Assurance and Warranty

Baldwin engine oil filters are manufactured to meet industry standards for filtration efficiency and durability. The B109 model is designed to provide consistent performance in compatible Chevrolet and Isuzu vehicles. While specific warranty details are not provided here, Baldwin products typically come with manufacturer-backed quality assurance to support reliable operation.