Exterior Components Body Panels and Components

King Engine Bearings

King Ford/Mazda Duratec 2.0/2.3 DOHC Silicon Bi-Metal Aluminum Main Bearing Set - Size STD

$63.79

SKU: K006 MB5442SI

In Stock
In Stock
Ships by Aug 4
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: MB5442SI

We are bearing specialists. King Engine Bearings was founded in 1960 with one simple objective: to supply the highest quality bearings available in the marketplace. By specializing in engine bearings, King has built an extensive product offering that incl

Features:

  • Bi-metal Aluminum Material
  • Ideal for medium-load engines
  • Lead Free Enviromentally Safe Composite

MAIN BEARING SET For FORD/MAZDA L3, L3-VDT MZR

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The King Engine Bearings MB5442SI is a set of SI-Series main bearings designed for OE applications and engine rebuilding. These bearings are constructed from a bi-metal, silicon aluminum material and feature improved oil clearance for reduced wear and increased engine life. This set includes 5 bearings and is for stock crankshaft undersize applications.

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 MB5442SI

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