King Engine Bearings BMW M20/M50/M52 Main Bearing Set (STD)

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Sale price$119.99 Regular price$160.80
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About King Engine Bearings

King Engine Bearings engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full King Engine Bearings lineup with fast shipping and expert fitment support — order with confidence.

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King Engine Bearings Main Bearing Set for BMW M20, M50, M52 Engines

Optimize the performance and reliability of your BMW's engine with the King Engine Bearings Main Bearing Set. This set is precision-engineered for BMW M20 (B20, B23, B25, B27), M50 (B25), and M52 (B20, B25, B28) engine families. Featuring a durable bimetal construction with an aluminum base, these bearings offer excellent embeddability and conformability, ensuring smooth operation and reduced wear on your crankshaft.

Key Features and Benefits:

  • Engineered for BMW: Specifically designed for popular BMW M20, M50, and M52 engines, guaranteeing a precise fit.
  • Standard Size (STD): This set is for standard size bearings, suitable for engine rebuilds or replacements where crankshaft journals are within factory specifications.
  • Durable Bimetal Construction: Utilizes a robust aluminum-based alloy for superior strength, wear resistance, and heat dissipation.
  • Reduced Friction: Designed to minimize friction between the crankshaft and the engine block, leading to improved efficiency.
  • Excellent Embeddability: The bearing material effectively embeds small particles, preventing damage to the crankshaft.
  • Wide Application: Fits a broad range of BMW models including the 3 Series, 5 Series, Z3, and X3.
  • Reliable Performance: Provides the quality and durability expected for both daily driving and performance applications.

Whether you're restoring a classic BMW or building a high-performance street machine, King Engine Bearings offers the critical components needed for a successful engine build. Trust GGCRACING for top-quality engine parts that deliver exceptional performance and longevity.

Vehicle Fitment

Years Make Model Trim
2000 BMW 323Ci Base
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
1986-1988 BMW 325 Base
1984-1987 BMW 325e Base
1986-1987 BMW 325es Base
1987-1995 BMW 325i Base
1988-1991 BMW 325iX Base
1987-1995 BMW 325is Base
2000 BMW 328Ci Base
1996-1999 BMW 328is Base
1989-1995 BMW 525i Base
1993 BMW 525iT Base
1982-1988 BMW 528e Base
1997-2000 BMW 528i Base
2007-2008 BMW X3 3.0si
2009-2010 BMW X3 xDrive30i
1998-2000 BMW Z3 M Roadster
1999-2000 BMW Z3 Coupe
1999-2000 BMW Z3 M Coupe
2007-2008 BMW Z4 Coupe 3.0si
2007-2008 BMW Z4 M Coupe
2007-2008 BMW Z4 M Roadster
2007-2008 BMW Z4 Roadster 3.0i
2007-2008 BMW Z4 Roadster 3.0si
2009-2010 BMW Z4 sDrive30i
2009-2010 BMW Z4 sDrive35i

Product Details

Product Description
Part Numbers
Sizing & Fit

About King Engine Bearings

King Engine Bearings engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full King Engine Bearings lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

King Engine Bearings Main Bearing Set for BMW M20, M50, M52 Engines

Optimize the performance and reliability of your BMW's engine with the King Engine Bearings Main Bearing Set. This set is precision-engineered for BMW M20 (B20, B23, B25, B27), M50 (B25), and M52 (B20, B25, B28) engine families. Featuring a durable bimetal construction with an aluminum base, these bearings offer excellent embeddability and conformability, ensuring smooth operation and reduced wear on your crankshaft.

Key Features and Benefits:

  • Engineered for BMW: Specifically designed for popular BMW M20, M50, and M52 engines, guaranteeing a precise fit.
  • Standard Size (STD): This set is for standard size bearings, suitable for engine rebuilds or replacements where crankshaft journals are within factory specifications.
  • Durable Bimetal Construction: Utilizes a robust aluminum-based alloy for superior strength, wear resistance, and heat dissipation.
  • Reduced Friction: Designed to minimize friction between the crankshaft and the engine block, leading to improved efficiency.
  • Excellent Embeddability: The bearing material effectively embeds small particles, preventing damage to the crankshaft.
  • Wide Application: Fits a broad range of BMW models including the 3 Series, 5 Series, Z3, and X3.
  • Reliable Performance: Provides the quality and durability expected for both daily driving and performance applications.

Whether you're restoring a classic BMW or building a high-performance street machine, King Engine Bearings offers the critical components needed for a successful engine build. Trust GGCRACING for top-quality engine parts that deliver exceptional performance and longevity.

Vehicle Fitment

Years Make Model Trim
2000 BMW 323Ci Base
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
1986-1988 BMW 325 Base
1984-1987 BMW 325e Base
1986-1987 BMW 325es Base
1987-1995 BMW 325i Base
1988-1991 BMW 325iX Base
1987-1995 BMW 325is Base
2000 BMW 328Ci Base
1996-1999 BMW 328is Base
1989-1995 BMW 525i Base
1993 BMW 525iT Base
1982-1988 BMW 528e Base
1997-2000 BMW 528i Base
2007-2008 BMW X3 3.0si
2009-2010 BMW X3 xDrive30i
1998-2000 BMW Z3 M Roadster
1999-2000 BMW Z3 Coupe
1999-2000 BMW Z3 M Coupe
2007-2008 BMW Z4 Coupe 3.0si
2007-2008 BMW Z4 M Coupe
2007-2008 BMW Z4 M Roadster
2007-2008 BMW Z4 Roadster 3.0i
2007-2008 BMW Z4 Roadster 3.0si
2009-2010 BMW Z4 sDrive30i
2009-2010 BMW Z4 sDrive35i

Product Details

Product Description

About King Engine Bearings

King Engine Bearings engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full King Engine Bearings lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

King Engine Bearings Main Bearing Set for BMW M20, M50, M52 Engines

Optimize the performance and reliability of your BMW's engine with the King Engine Bearings Main Bearing Set. This set is precision-engineered for BMW M20 (B20, B23, B25, B27), M50 (B25), and M52 (B20, B25, B28) engine families. Featuring a durable bimetal construction with an aluminum base, these bearings offer excellent embeddability and conformability, ensuring smooth operation and reduced wear on your crankshaft.

Key Features and Benefits:

  • Engineered for BMW: Specifically designed for popular BMW M20, M50, and M52 engines, guaranteeing a precise fit.
  • Standard Size (STD): This set is for standard size bearings, suitable for engine rebuilds or replacements where crankshaft journals are within factory specifications.
  • Durable Bimetal Construction: Utilizes a robust aluminum-based alloy for superior strength, wear resistance, and heat dissipation.
  • Reduced Friction: Designed to minimize friction between the crankshaft and the engine block, leading to improved efficiency.
  • Excellent Embeddability: The bearing material effectively embeds small particles, preventing damage to the crankshaft.
  • Wide Application: Fits a broad range of BMW models including the 3 Series, 5 Series, Z3, and X3.
  • Reliable Performance: Provides the quality and durability expected for both daily driving and performance applications.

Whether you're restoring a classic BMW or building a high-performance street machine, King Engine Bearings offers the critical components needed for a successful engine build. Trust GGCRACING for top-quality engine parts that deliver exceptional performance and longevity.

Vehicle Fitment

Years Make Model Trim
2000 BMW 323Ci Base
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
1986-1988 BMW 325 Base
1984-1987 BMW 325e Base
1986-1987 BMW 325es Base
1987-1995 BMW 325i Base
1988-1991 BMW 325iX Base
1987-1995 BMW 325is Base
2000 BMW 328Ci Base
1996-1999 BMW 328is Base
1989-1995 BMW 525i Base
1993 BMW 525iT Base
1982-1988 BMW 528e Base
1997-2000 BMW 528i Base
2007-2008 BMW X3 3.0si
2009-2010 BMW X3 xDrive30i
1998-2000 BMW Z3 M Roadster
1999-2000 BMW Z3 Coupe
1999-2000 BMW Z3 M Coupe
2007-2008 BMW Z4 Coupe 3.0si
2007-2008 BMW Z4 M Coupe
2007-2008 BMW Z4 M Roadster
2007-2008 BMW Z4 Roadster 3.0i
2007-2008 BMW Z4 Roadster 3.0si
2009-2010 BMW Z4 sDrive30i
2009-2010 BMW Z4 sDrive35i

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