HomeBaldwin B40125 Engine Oil Filter
Part #: B40125

Baldwin B40125 Engine Oil Filter

21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Porsche, 911 and 928
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Overview of Baldwin B40125 Engine Oil Filter

The Baldwin B40125 engine oil filter is designed specifically for Porsche vehicles, including the 1978-95 Porsche 928 and the 1995-98 Porsche 911 models. This filter features a front-end by-pass valve and an integral gasket to ensure reliable engine protection and efficient oil filtration.

  • Compatible with 1978-95 Porsche 928 and 1995-98 Porsche 911
  • Includes front-end by-pass valve for optimal oil flow
  • Integral gasket included for secure sealing
  • Height: 6 3/4 inches (171.5 mm)
  • Outside diameter: 3 5/32 inches (80.2 mm)
  • Thread size: M20 x 1.5
  • Replaces Porsche part number 92810720103 and Wix 51285

Technical Details and Specifications

The Baldwin B40125 engine oil filter is engineered to meet the filtration requirements of Porsche 928 and 911 engines from the specified years. Its front-end by-pass valve allows oil to bypass the filter element under cold start or high-pressure conditions, preventing oil starvation. The integral gasket ensures a tight seal between the filter and engine mounting surface, reducing the risk of leaks. With a height of 6 3/4 inches (171.5 mm) and an outside diameter of 3 5/32 inches (80.2 mm), this filter fits precisely on the designated Porsche models. The M20 x 1.5 thread size matches factory specifications for easy installation and secure fitment.

Applications and Problem Solving

  • Prevents engine wear by filtering contaminants from engine oil
  • Maintains proper oil flow with front-end by-pass valve during cold starts
  • Reduces risk of oil leaks with included integral gasket
  • Compatible replacement for Porsche 92810720103 and Wix 51285 filters
  • Supports engine longevity in Porsche 928 and 911 models from 1978-98

Installation Notes and Tips

When installing the Baldwin B40125 engine oil filter, ensure the engine is cool to avoid burns. Apply a thin layer of clean engine oil to the integral gasket before mounting to improve sealing. Tighten the filter according to Porsche manufacturer torque specifications to prevent leaks or damage. Dispose of the old filter properly and check for any oil leaks after installation. This filter’s thread size of M20 x 1.5 matches factory fittings for straightforward replacement.

Quality Assurance and Warranty

Baldwin engine oil filters are manufactured to meet industry standards for filtration efficiency and durability. The B40125 model is designed to provide consistent performance for Porsche 928 and 911 engines within the specified years. While specific warranty details may vary, Baldwin filters typically come with a limited warranty against defects in materials and workmanship. Refer to Baldwin’s official documentation for complete warranty information.

BrandBaldwin
Part NumberB40125
ContainsFront-End By-Pass Valve
Fits"1978-95 Porsche 928, 1995-98 911"
Height6 3/4
Height (mm)171.5
Integral Gasket[1] Included
Outside Diameter 13 5/32
Outside Diameter 1 (mm)80.2
ReplacesPorsche 92810720103; WIX 51285
ThreadM20 x 1.5

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998Porsche9113.6LH6N/A
1997Porsche9113.6LH6N/A
1996Porsche9113.6LH6N/A
1995Porsche9113.6LH6N/A
1995Porsche9285.4LV8N/A
1994Porsche9285.4LV8N/A
1993Porsche9285.4LV8N/A
1991Porsche9285.0LV8N/A
1990Porsche9285.0LV8N/A
1989Porsche9285.0LV8N/A
1988Porsche9285.0LV8N/A
1987Porsche9285.0LV8N/AOE Number : 92810720105
1986Porsche9285.0LV8N/A
1985Porsche9285.0LV8N/A
1984Porsche9284.7LV8N/A
1983Porsche9284.7LV8N/A
1982Porsche9284.5LV8N/A
1981Porsche9284.5LV8N/A
1980Porsche9284.5LV8N/A
1979Porsche9284.5LV8N/A
1978Porsche9284.5LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.