What is the primary function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while maintaining the correct oil clearance, which is crucial for lubrication and reducing friction.

Does this Clevite main bearing set include all the necessary bearings for an engine rebuild?

This set contains the main bearings required for the crankshaft. It's important to check your specific engine's service manual to confirm if any other bearing types, such as rod bearings, are needed for your rebuild.

What is the significance of the '25MM' in the part number or description?

The '25MM' typically refers to the main journal diameter that these bearings are designed for. This specific size is critical for ensuring a proper fit and function with the crankshaft in compatible Nissan engines.

Clevite Main Bearing Set MS2042A25MM - Nissan 1974-1989

Name: Clevite Nissan 4 1952-2187-2389cc 1974-89 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-nissan-4-1952-2187-2389cc-1974-89-main-bearing-set-t14-54477
Price: 51.10 USD
Availability: InStock

Clevite Nissan 4 1952-2187-2389cc 1974-89 Main Bearing Set

$51.10

Only 1 left in stock

Clevite Nissan 4 1952-2187-2389cc 1974-89 Main Bearing Set. Essential for engine rebuilds, ensuring proper crankshaft support.

Key Features

Fits 1974-1989 Nissan 4-cylinder engines (1952-2389cc).
Provides essential crankshaft support during engine operation.
Helps maintain proper oil clearance and reduce friction.
Well-built with materials suited for engine environments.
Direct fit for a range of Nissan vehicles including 200SX, 720, and D21.

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Product Details

This is a Clevite main bearing set, part number MS2042A25MM, designed for 1974-1989 Nissan 4-cylinder engines with displacements between 1952cc and 2389cc. These bearings are a critical component for any engine rebuild or repair, providing the necessary support for the crankshaft to spin smoothly within the engine block. They are essential for maintaining proper oil clearance and reducing friction between the crankshaft and the main journals.

This set is well-built with materials chosen to withstand the rigors of engine operation. The precise sizing ensures a direct fit for a range of Nissan vehicles from this era, including popular models like the 200SX, 720 pickup trucks, and D21 trucks. Proper installation is key, as these bearings directly influence engine longevity and performance by controlling crankshaft movement and oil flow.

When rebuilding your engine, using a reliable main bearing set like this Clevite offering helps ensure that your crankshaft is properly supported. This is crucial for preventing premature wear and potential engine damage. Always refer to your vehicle's service manual for specific installation procedures and torque specifications.