What is the purpose of main bearings in an engine?

Main bearings are crucial components that support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while absorbing the significant forces from the pistons and combustion process, preventing excessive wear.

What does the 'Z120 129' designation mean?

The Z120 129 designation refers to the specific size, design, and material specifications of this particular main bearing set. It's important to match this designation to your engine's requirements for proper fitment and function.

What should I do before installing these main bearings?

Before installation, ensure the crankshaft journals are clean and within the manufacturer's specified tolerances. Applying the correct assembly lubricant to the bearings and journals is also essential for proper seating and initial operation.

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Specifications

Brand: Clevite
Part #: MS260P10
UPC: 027067531407

Clevite Continental Z120 129 4 Cyl Main Bearing Set

Name: Clevite Continental Z120 129 4 Cyl Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-continental-z120-129-4-cyl-main-bearing-set-t14-58348
Price: 190.11 USD
Availability: BackOrder

$190.11

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Clevite Continental Z120 129 4 Cyl Main Bearing Set. Essential for engine rebuilds, ensuring proper crankshaft support.

Key Features

This is a 4-cylinder main bearing set.
Features the Z120 129 specification.
From the well-known Clevite brand.

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About this part

Product Details

If you're rebuilding the bottom end of your 4-cylinder engine, getting the crankshaft spinning true is critical. This Clevite Continental Z120 129 main bearing set is designed to provide that essential support. These bearings sit between the crankshaft and the engine block, allowing the crank to rotate smoothly while handling the immense forces generated during combustion. Proper bearing function is key to preventing premature engine wear and ensuring long-term reliability.

Clevite has been a trusted name in engine bearings for a long time, and this set is built to meet those expectations. The Z120 129 designation indicates a specific size and design tailored for certain 4-cylinder applications. When installing, it's important to ensure the crankshaft journals are clean and within specified tolerances, and that you use the correct assembly lube. This helps the new bearings seat properly and begin their service life without immediate stress.