King Bearings
King Bearings Main Bearing Set - MB557XP001
King Bearings Main Bearing Set - MB557XP001
Regular price
$105.99 USD
Regular price
Sale price
$105.99 USD
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Main Bearing Set from King Bearings. The part number and specifications are listed below. Bearing size depends on whether the crankshaft has been ground, so measure before ordering.
Quick facts
- Brand: King Bearings
- Part type: Bearing set
- Part number: MB557XP001
Specifications
- Weight: 1.4 lbs
Listed fitment
- various engine types, the KING BEARINGS Main Bearing Set (part number MB557XP001) is your go-to choice for reliable engine performance.
Tip: Check clearances with plastigage or a micrometer, and use assembly lube on every bearing.

Before you order: fitment and what to plan
Engine bearings let the crankshaft and rods spin on a thin film of oil.
Fitment notes
- Specs, lead time and warranty come from King Bearings and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- Oil pump. Often replaced together.
- Gasket set. The engine comes apart for bearings.
More for your car: Main Bearings · All Rod Bearings · Engine
Questions about engine bearings
Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
What does undersize mean?
Undersize bearings are for a crankshaft that has been ground smaller. Standard is for an unground crank.
Where do specs and warranty details come from?
From King Bearings. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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