Engines and Components› Engine Bearings

King Engine Bearings

King Engine Bearings Honda C27A4 (Size +0.75mm) Main Bearing Set

$35.28

SKU: K006 MB4057AM0.75

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The King Engine Bearings AM-Series Main Bearings MB4057AM0.75 are performance-oriented crankshaft bearings designed for street or marine applications. These bearings feature superior embeddability for greater macro-particle resistance, reducing scratching of crank journals and damage to Babbitt overlays. They are manufactured with tolerance control to within +/- 0.0001 and are lead-free for environmental and user safety.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKing Engine Bearings
Part NumberK006 MB4057AM0.75

Videos

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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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