King Engine Bearings

King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines

King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines
King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines
King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines
King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines
King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines
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King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S EnginesKing MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S EnginesKing MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S EnginesKing MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S EnginesKing MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines
King Engine Bearings

King MB7781SM0.25 Main Bearing Set (+0.25mm) — Fits BMW N57 D30 A/B/C, N57N, N57S Engines

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SKU: KINGMB7781SM0.25
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Price:
$151.99 $161.25
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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
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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.

King MB7781SM0.25 Main Bearing Set for BMW N57 Engines

Optimize your BMW N57 D30 A/B/C, N57N, or N57S engine's performance and longevity with the King MB7781SM0.25 Main Bearing Set. Engineered with a +0.25mm oversize, these bearings are ideal for crankshafts requiring a slight adjustment, ensuring precise fitment and optimal oil clearance.

Superior Bimetal Construction

  • Advanced Material: Manufactured from a strengthened aluminum bimetal alloy, offering exceptional wear resistance and durability under high stress.
  • Precision Engineering: Designed to exact specifications for BMW N57 series engines, guaranteeing reliable operation and consistent performance.
  • Enhanced Engine Life: Provides critical support for the crankshaft, reducing friction and extending the lifespan of your engine's rotating assembly.
  • Optimal Fitment: The +0.25mm oversize is perfect for rebuilds where the crankshaft journals have been machined, restoring factory-like tolerances.

King Engine Bearings are trusted by engine builders worldwide for their quality and performance. Ensure your BMW N57 engine runs smoothly and powerfully with this premium main bearing set from GGCRACING.

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.

King MB7781SM0.25 Main Bearing Set for BMW N57 Engines

Optimize your BMW N57 D30 A/B/C, N57N, or N57S engine's performance and longevity with the King MB7781SM0.25 Main Bearing Set. Engineered with a +0.25mm oversize, these bearings are ideal for crankshafts requiring a slight adjustment, ensuring precise fitment and optimal oil clearance.

Superior Bimetal Construction

  • Advanced Material: Manufactured from a strengthened aluminum bimetal alloy, offering exceptional wear resistance and durability under high stress.
  • Precision Engineering: Designed to exact specifications for BMW N57 series engines, guaranteeing reliable operation and consistent performance.
  • Enhanced Engine Life: Provides critical support for the crankshaft, reducing friction and extending the lifespan of your engine's rotating assembly.
  • Optimal Fitment: The +0.25mm oversize is perfect for rebuilds where the crankshaft journals have been machined, restoring factory-like tolerances.

King Engine Bearings are trusted by engine builders worldwide for their quality and performance. Ensure your BMW N57 engine runs smoothly and powerfully with this premium main bearing set from GGCRACING.

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.

King MB7781SM0.25 Main Bearing Set for BMW N57 Engines

Optimize your BMW N57 D30 A/B/C, N57N, or N57S engine's performance and longevity with the King MB7781SM0.25 Main Bearing Set. Engineered with a +0.25mm oversize, these bearings are ideal for crankshafts requiring a slight adjustment, ensuring precise fitment and optimal oil clearance.

Superior Bimetal Construction

  • Advanced Material: Manufactured from a strengthened aluminum bimetal alloy, offering exceptional wear resistance and durability under high stress.
  • Precision Engineering: Designed to exact specifications for BMW N57 series engines, guaranteeing reliable operation and consistent performance.
  • Enhanced Engine Life: Provides critical support for the crankshaft, reducing friction and extending the lifespan of your engine's rotating assembly.
  • Optimal Fitment: The +0.25mm oversize is perfect for rebuilds where the crankshaft journals have been machined, restoring factory-like tolerances.

King Engine Bearings are trusted by engine builders worldwide for their quality and performance. Ensure your BMW N57 engine runs smoothly and powerfully with this premium main bearing set from GGCRACING.

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