OE replacment Bi-metal For BMW N57 D30 A/B/C, N57N, N57S - MB7781SM

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King Bearings' SM Series features the strongest Aluminum based alloy at King (by adding Manganese and Chromium to the base layer). Tailored for high-load applications, it serves as an exceptional Lead-free OE replacement bearing with high wear resistance properties.
Commonly use for high-load applications requiering high wear resistance properties
Crankshaft Dim. Housing Dim. Length Thickness
54.99 / 54.97 mm
2.1650 / 2.1642 inch
60.02 / 60.00 mm
2.3630 / 2.3622 inch
Position :
24.9 mm
0.980 inch

Position :
18.8 mm
0.740 inch
2.498 mm
0.0983 inch
Main Bearing Set For BMW N57 D30 A/B/C, N57N, N57S - MB7781SM
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Performance features

Material features

Tech Features

Aluminum Based
aluminum base
Bi Metal Aluminum material

Lead free Aluminum based material used for low to heavy load engines

ManganX™
ManganX
Strengthened
Aluminum

An aluminum alloy strengthened by addition of Manganese and Chromium (Mn, Cr), Used for high load applications.

Lead free
Lead Free
Environmentally safe composite

A lead-free bearing material prioritizes environmental sustainability and safety, utilizing alternative compounds to achieve optimal performance in diverse applications.

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