Engines and Components› Engine Bearings

King Engine Bearings

King Engine Bearings Nissan SR20DE (Size STD) Performance Main Bearing Set

$35.42

SKU: K006 MB5243AM

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

Moderate — 2–4 hours

Description

The King Engine Bearings MB5243AM is a performance main bearing set designed for Nissan SR20DE engines. These AM-Series bearings are recommended for street or marine applications and feature superior embedability to reduce scratching on crank journals.

They offer greater macro-particle resistance, helping to prevent tearing or weakening of Babbitt overlays. These lead-free bearings are environmentally friendly and user-safe, with tolerance control up to plus or minus .0001.

Fitment

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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.

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Specifications

BrandKing Engine Bearings
Part NumberK006 MB5243AM

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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