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

Main bearings support the crankshaft within the engine block. They create a low-friction surface for the crankshaft to rotate on and maintain proper oil clearance, which is essential for lubrication and preventing metal-on-metal contact.

Does this bearing set come with all the necessary components for installation?

This is a main bearing set, which includes the bearings themselves. You will typically need to purchase a separate main bearing cap bolt set and ensure you have engine assembly lubricant for proper installation.

How do I know if I need a 50mm main bearing set?

You need to measure your crankshaft's main journal diameter. This Clevite MS1945A50MM set is specifically for engines with a 50mm main journal size, common in many Nissan KA24DE and KA24E engines.

Clevite Main Bearing Set MS1945A50MM - Nissan KA24DE/KA24E

Name: Clevite Nissan 4 2389cc 1989-95 KA24DE / KA24E Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-nissan-4-2389cc-1989-95-ka24de-ka24e-main-bearing-set-t14-54459
Price: 34.41 USD
Availability: BackOrder

Clevite Nissan 4 2389cc 1989-95 KA24DE / KA24E Main Bearing Set

$34.41

On Backorder

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

Clevite main bearing set for Nissan 2.4L KA24DE/KA24E engines. Essential for engine rebuilds.

Key Features

Fits 1989-1995 Nissan 2389cc KA24DE and KA24E engines.
Designed for a 50mm crankshaft journal diameter.
Well-built layered construction for durability.
Helps restore proper oil clearance in the engine block.
Reduces friction for smoother crankshaft rotation.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your Nissan KA24DE or KA24E engine, a solid set of main bearings is crucial. These Clevite main bearings are built to handle the stresses of daily driving and performance use, ensuring your crankshaft spins smoothly within the block. They are a well-built replacement for worn-out factory bearings, helping to restore proper oil clearance and reduce friction.

Clevite uses a layered construction with a steel backing for strength and a bearing material designed for good wear resistance. This particular set is designed for a 50mm crankshaft journal diameter, which is standard for many KA24DE and KA24E applications. When installing, pay close attention to the oil clearances to ensure proper lubrication and longevity of your engine rebuild.

This bearing set fits a wide range of vehicles beyond just Nissan, including models like the Dodge Ram 50, Mitsubishi Mighty Max, and Chrysler LeBaron from the 1980s. Always verify your specific engine and crankshaft journal size before ordering.