King Engine Bearings MB5801SM0.25 +0.25mm Main Bearing Set for BMW N63/S63 08-19

Regular price: $195.95
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Sale price: $195.95

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In Stock: 28

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Product Specification:

SKU:KINGMB5801SM0.25

MPN: MB5801SM0.25

UPC: 611500596858

Weight: 1.1 lb

Inventory: 28

Type: Bearings

Vehicle Fitment

2008-2019 BMW X6 xDrive50i (N63B44)
2009-2019 BMW 750i/750i xDrive (N63B44)
2009-2015 BMW 750Li/750Li xDrive (N63B44)
2010-2017 BMW 550i/550i xDrive (N63B44)
2010-2017 BMW 550i GT/GT xDrive (N63B44)
2012-2018 BMW 650i/650i xDrive (N63B44)
2013-2019 BMW 650i Gran Coupe/xDrive Gran Coupe (N63B44)
2015-2019 BMW Alpina B6 xDrive Gran Coupe (N63B44)
2011-2015 BMW Alpina B7/B7 xDrive/L/B7L xDrive (N63B44)

Features

Engine crankshaft main bearing set for BMW N63/S63 engines
Oversize +0.25 mm for undersized crank journals
High-strength bi-metal aluminum construction
Reinforced with manganese & chromium for durability
Precision machined for accurate OEM-level tolerances
Improved wear resistance in rebuilt or high-load engines
Includes all main bearing journal positions
Lead-free alloy for safer environmental compliance

Specifications

Brand: King Engine Bearings
Part Number: MB5801SM0.25
Bearing Set Type: Main crankshaft bearing kit
Size: +0.25 mm undersize to crankshaft journals
Material: Bi-metal reinforced aluminum alloy
Intended Engines: BMW N63B44 & S63B44 V8 petrol
Quantity: Complete set for positions 1-5
Application: Engine rebuild, performance, or undersized crankshaft

Included Components

5x pairs of main bearings (+0.25 mm)

Product Description

The King Engine Bearings MB5801SM0.25 +0.25 mm Main Bearing Set is designed specifically for BMW engines using the N63B44 or S63B44 V8 platforms when the crankshaft journals have been machined undersize. These premium bi-metal aluminum bearings are constructed with reinforced manganese and chromium for enhanced strength and durability. The +0.25 mm size ensures proper oil clearance and seating on crankshafts that require slight oversize bearings after machining.

Ideal for engine rebuilds, performance upgrades, or repair work where crank journals have been reground, this complete set includes bearings for all five main journals. Precision machining to exact OEM tolerances means smooth rotation and reliable protection under both daily driving and high-load scenarios. Whether restoring a high-mileage BMW or building a tuned N63/S63 engine, this set offers quality and fitment you can trust.