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King Engine Bearings

King Engine Bearings General Motors 379/V8 Ohv (Size +0.75mm) Main Bearing Set

$61.59

SKU: K006 MB5257SI0.75

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INSTALL DIFFICULTY
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Easy — 1–2 hours

Description

Part #: MB5257SI0.75

MIA's Description

The King Engine Bearings Main Bearing Set is an OE-Replacement version designed for GM 379 V8 OHV engines. This set is a bi-metal engine crankshaft main bearing set.

Specifications include a shaft undersize of 0.75mm. The housing diameter is 79.85 / 79.82 mm (3.144 / 3.143 inches), with a standard shaft diameter of 74.94 / 74.91 mm (2.950 / 2.949 inches). The standard maximum thickness is 2.423 mm.

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Specifications

BrandKing Engine Bearings
Part NumberK006 MB5257SI0.75

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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