Baldwin B301 Engine Oil Filter

Overview of Baldwin B301 Engine Oil Filter for Subaru Vehicles

The Baldwin B301 engine oil filter is designed specifically for Subaru models including the Baja, Impreza, Legacy, and Outback. Engineered to meet OEM specifications, this filter ensures reliable oil filtration and engine protection for your Subaru vehicle.

• Contains an 8 psid by-pass valve for consistent oil flow
• Compatible with Subaru automotive applications: Baja, Impreza, Legacy, Outback
• Height: 2 27/32 inches (72.2 mm)
• Outside diameter: 3 inches (76.2 mm)
• Thread size: M20 x 1.5
• Includes integral gasket for secure sealing
• Replaces Subaru part number 15208-AA021

Technical Details and Specifications

The Baldwin B301 engine oil filter features an 8 psid by-pass valve that maintains oil flow even under high pressure conditions, preventing engine starvation. Its dimensions—2 27/32 inches in height and 3 inches in outside diameter—are designed to fit precisely on compatible Subaru models. The M20 x 1.5 thread ensures proper installation and secure attachment. An integral gasket is included to provide a tight seal, reducing the risk of leaks. This filter is a direct replacement for Subaru part number 15208-AA021, making it a suitable choice for maintenance and repair.

Compatible Subaru Models and Applications

This Baldwin B301 engine oil filter is compatible with the following Subaru vehicles:

• Subaru Baja
• Subaru Impreza
• Subaru Legacy
• Subaru Outback

Using the correct oil filter helps maintain engine performance and longevity in these models.

Common Issues Addressed by the Baldwin B301 Oil Filter

• Prevents engine wear caused by contaminants in the oil
• Maintains proper oil pressure with the 8 psid by-pass valve
• Reduces risk of oil leaks with the included integral gasket
• Ensures compatibility and fitment to avoid installation issues
• Replaces worn or damaged Subaru OEM oil filters

Installation Notes and Tips

When installing the Baldwin B301 oil filter on your Subaru Baja, Impreza, Legacy, or Outback, ensure the engine is cool to avoid burns. Apply a thin layer of clean engine oil to the integral gasket before installation to improve sealing. Tighten the filter according to manufacturer torque specifications to prevent leaks or damage. Always verify the thread size (M20 x 1.5) matches your vehicle’s requirements.

Quality Assurance and Warranty Information

Baldwin filters are manufactured to meet industry standards for filtration efficiency and durability. The B301 oil filter undergoes rigorous quality control to ensure consistent performance. While specific warranty details may vary, Baldwin typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.