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King Engine Bearings

King MB5784SI0.25 SI Main Bearings for 2012-2016 BMW 2.0L I4 N20/B20

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$164.95
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$164.95
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In Stock: 50

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Product Specification:

SKU:KINGMB5784SI0.25

MPN: MB5784SI0.25

UPC: 611500591303

Weight: 0.8 lb

Inventory: 50

Type: Bearings



Vehicle Fitment

  • 2012-2016 BMW 320i (Base, M Sport, xDrive) 2.0L I4 N20/B20
  • 2014-2016 BMW 228i (Base, xDrive) 2.0L I4 N20/B20
  • 2012-2016 BMW 328i (Base, M Sport, xDrive) 2.0L I4 N20/B20
  • 2014-2016 BMW 428i (Base, xDrive) 2.0L I4 N20/B20
  • 2012-2016 BMW 528i (Base, xDrive) 2.0L I4 N20/B20
  • 2013-2015 BMW X1 (sDrive20i, xDrive28i) 2.0L I4 N20/B20
  • 2013-2017 BMW X3 (sDrive20i, xDrive28i) 2.0L I4 N20/B20
  • 2015-2017 BMW X4 (xDrive28i) 2.0L I4 N20/B20
  • 2016-2017 BMW X5 (xDrive35i) 3.0L I6 N55 (not compatible with 2.0L I4)
  • 2012-2016 BMW Z4 (sDrive20i, sDrive28i) 2.0L I4 N20/B20

Features

  • SI-Series bi-metal construction with aluminum-silicon base
  • Standard (STD) size, drop-in fit for OEM applications
  • Upper groove design for improved oil flow
  • Flange oversize: FL STD (standard flange size)
  • Sold as a complete set of 5 main bearing shells
  • Designed for use with factory crankshafts
  • Suitable for both standard and mild performance applications
  • Provides reliable performance and durability

Specifications

  • Material: Bi-metal (aluminum-silicon base)
  • Undersize: 0.25mm (0.010 inches)
  • Groove Style: 1/2 groove, upper position
  • Flange Oversize: FL STD (standard flange size)
  • Quantity: 5 main bearing shells
  • Compatibility: OEM replacement for specified BMW models
  • Usage: Direct replacement for factory applications

Included Components

  • 5x main bearing shells (STD size)

Product Description

The King MB5784SI0.25 SI-Series main bearing set is engineered for BMW's N20/B20 2.0L I4 engines, commonly found in models such as the 320i, 328i, 428i, and 528i from 2012 to 2016. This set is designed as a direct OEM replacement, offering a standard (STD) size for a drop-in fit without the need for machining. The bi-metal construction with an aluminum-silicon base ensures reliable performance for standard and mild performance applications.

Featuring an upper 1/2 groove design, these bearings improve oil flow to the crankshaft, enhancing lubrication and reducing wear. The standard flange size (FL STD) maintains compatibility with factory components. Sold as a complete set of 5 main bearing shells, this kit provides everything needed for a comprehensive replacement. Whether you're performing routine maintenance or a mild performance upgrade, the King MB5784SI0.25 main bearing set delivers the durability and reliability expected from a trusted OEM replacement.

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