What does '0.030 inch undersize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 0.030 inches from its original factory size. It's used when a crankshaft needs to be reconditioned due to wear or damage.

Why are main bearings important?

Main bearings support the crankshaft within the engine block. They create the necessary oil clearance for the crankshaft to spin smoothly and efficiently, which is crucial for engine performance and longevity.

Does this set include all the main bearings needed for an engine?

Typically, a main bearing set includes all the main bearings required for a complete engine installation. Always refer to the product packaging or manufacturer's specifications to confirm the exact contents.

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Specifications

Brand: Clevite
Part #: MS209P30
UPC: 027067530769

Clevite Main Bearing Set

Name: Clevite Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-main-bearing-set-t14-57196
Price: 170.04 USD
Availability: BackOrder

$170.04

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Clevite Main Bearing Set MS209P30. This is a 0.030 inch undersize bearing set.

Key Features

This is a 0.030 inch undersize main bearing set.
Supports the crankshaft within the engine block.
Ensures proper oil clearance for crankshaft rotation.
From the well-known Clevite brand.

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About this part

Product Details

This Clevite Main Bearing Set, part number MS209P30, is a 0.030 inch undersize set. Main bearings are critical components in your engine's rotating assembly, supporting the crankshaft and ensuring it spins smoothly within the engine block. When rebuilding or repairing an engine, especially if the crankshaft has been machined undersize, using the correct size bearings is essential for proper oil clearance and engine longevity.

Clevite is a well-known name in engine components, and this bearing set reflects their focus on providing reliable parts for engine work. The 0.030 inch undersize specification means these bearings are designed to fit a crankshaft that has been ground down by 0.030 inches from its original size. This is a common practice when dealing with crankshafts that have wear or damage, allowing them to be reconditioned and reused. Proper installation is key; ensure the crankshaft journals are clean and within the specified tolerance for the 0.030 undersize dimension.