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

Main bearings are critical 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 connecting rods, ensuring proper engine operation and lubrication.

What does the 'P20' in the part number MS704P20 signify?

The 'P20' in the part number indicates that these bearings are 0.020 inches undersize. This sizing is important when the crankshaft has been machined undersize during an engine rebuild to account for wear.

Do I need to measure crankshaft journals when installing these bearings?

Yes, it is highly recommended to measure your crankshaft journals to ensure they have been machined to the correct size for these bearings. The 'P20' designation means they are 0.020 inches undersize, and the journals must match this specification for proper oil clearance.

Clevite Main Bearing Set MS704P20

Name: Clevite Main Bearing Set
Brand: Clevite
Price: 119.03 USD
Availability: InStock

Clevite Main Bearing Set

$119.03

On Backorder

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Clevite Main Bearing Set MS704P20. Essential for engine rebuilds, these bearings support the crankshaft.

Key Features

Fits a wide range of American Motors, International, and Jeep vehicles.
Supports the crankshaft, allowing it to rotate smoothly.
Features a multi-layer material construction for heat management and friction reduction.
Precise dimensions ensure proper fit and oil clearance.
Essential for engine rebuilds and maintaining oil pressure.

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Product Details

If you're rebuilding the engine in your American Motors, International, or Jeep vehicle, a fresh set of main bearings is crucial. These bearings sit in the engine block and cradle the crankshaft, allowing it to spin smoothly while handling the immense forces generated during combustion. Worn main bearings can lead to excessive crankshaft movement, oil pressure loss, and ultimately, catastrophic engine failure.

This Clevite MS704P20 main bearing set is built with a multi-layer material that helps manage heat and reduce friction. The precise dimensions ensure a proper fit against the crankshaft and the engine block, which is key for maintaining consistent oil clearance. Having the correct oil clearance is vital for oil pressure and lubrication, ensuring all the moving parts inside your engine stay protected.

When you're putting an engine back together, using well-made components like these Clevite bearings makes a difference. They are designed to handle the demands of daily driving and more. Make sure to follow the manufacturer's installation instructions carefully, paying close attention to bearing oil clearance specifications and proper torque sequences to get the best performance and longevity from your engine rebuild.