Exterior Components› Body Panels and Components

King Engine Bearings

King Engine Bearings Ford 281CI 4.6L V8 (Size +1.0) Main Bearing Set

$50.33

SKU: K006 MB5281SI1.0

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: MB5281SI1.0

MAIN BEARING SET For FORD 281 | bimetal (aluminum silicon base)

MIA's Description

The King Engine Bearings MB5281SI is a set of SI-Series main bearings designed for OE applications. These direct replacement bearings are suitable for aftermarket gasoline or diesel engine rebuilding and performance engines with factory crankshafts. They feature an improved crankshaft finish to reduce ferrite peaks on improperly ground or polished nodular cast iron crankshafts. The SI-Series main bearings offer improved oil clearance to minimize wear and extend engine life, while also reducing operating noise, vibration, and excess oil flow. This set is specifically designed for Ford 4.6L Romeo blocks.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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 MB5281SI1.0

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.

View Full Return Policy