What does the 0.026 size indicate for these main bearings?

The 0.026 size means these bearings are 0.026 inches undersize. This is used when the engine's crankshaft has been machined down to a smaller diameter to correct for wear or damage during an engine rebuild.

What is the primary 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, while also maintaining critical oil clearances for lubrication and heat dissipation.

Are these bearings suitable for a stock engine rebuild?

These bearings are specifically sized at 0.026 inches undersize, which is intended for a crankshaft that has been machined down. If your crankshaft is still at standard size, you would need a standard size main bearing set.

King Engine Bearings Main Bearing Set 0.26 Cummins 6BT/6BTA/

Name: King Engine Bearings Cummins 6BT/ 6BTA/ 6BTAA (Size 0.26) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-cummins-6bt-6bta-6btaa-size-0-26-main--t14-432591
Price: 405.41 USD
Availability: BackOrder

King Engine Bearings Cummins 6BT/ 6BTA/ 6BTAA (Size 0.26) Main Bearing Set

$405.41

On Backorder

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

King Engine Bearings Cummins 6BT/ 6BTA/ 6BTAA (Size 0.26) Main Bearing Set

Key Features

Fits Cummins 6BT, 6BTA, and 6BTAA engines.
Main bearing set with a 0.026 inch undersize for machined crankshafts.
Features King's high-performance overlay material for durability.
Helps reduce friction and wear in the engine's bottom end.
Supports the crankshaft and ensures smooth rotation.

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Product Details

If you're rebuilding the bottom end of your Cummins 6BT, 6BTA, or 6BTAA engine, this main bearing set from King Engine Bearings is a solid option. These bearings are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block. Proper main bearings reduce friction and wear, which is essential for the longevity of your diesel engine.

King Engine Bearings uses a high-performance overlay material that's known for its durability and ability to handle the heavy loads these engines produce. This particular set is 0.026 inches undersize, meaning it's designed for crankshafts that have been machined down to compensate for wear or damage. The precise sizing ensures a proper fit and optimal oil clearance, which is critical for lubrication and heat dissipation. Installing these bearings correctly will help maintain consistent oil pressure and protect your crankshaft.

When you're working on a Cummins diesel, using well-built internal components like these main bearings is key to a reliable rebuild. Make sure to follow the manufacturer's installation instructions carefully, paying close attention to torque specifications and crankshaft end play.