What does 1.0mm undersize mean for these bearings?

An undersize bearing, like this 1.0mm set, is used when the crankshaft has been machined down by 1.0mm. This allows the bearing to maintain the correct clearance between the crankshaft journal and the main bearing bore.

What is the material of these main bearings?

These bearings feature a bimetal construction with an aluminum silicon base. This material is chosen for its good wear resistance and load-carrying capabilities in diesel engine applications.

Do these bearings come with installation instructions?

While installation instructions are not included with the bearings themselves, it is highly recommended to refer to the manufacturer's official service manual for the specific engine model for proper installation procedures and torque specifications.

Specifications

Brand: King Engine Bearings
Part #: MB7009SI1.0
UPC: 611500470752

King Engine Bearings 89-15 Dodge Cummins Diesel 5.9L 6.7L Inline 6 (Size 1.0mm) Main Bearing Set

Name: King Engine Bearings 89-15 Dodge Cummins Diesel 5.9L 6.7L Inline 6 (Size 1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-89-15-dodge-cummins-diesel-5-9l-6-7l-i-t14-4360912
Price: 98.80 USD
Availability: BackOrder

$98.80

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King Engine Bearings main bearing set for 1989-2012 Dodge Cummins Diesel 5.9L and 6.7L engines. Size 1.0mm undersize.

Key Features

Fits 1989-2012 Dodge and Ram trucks with Cummins 5.9L and 6.7L diesel engines.
Main bearing set with a bimetal aluminum silicon base construction.
This set is 1.0mm undersize, intended for use with a reground crankshaft.
Designed for the Cummins 6B series engine family.

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About this part

Product Details

Built with a bimetal aluminum silicon base, this main bearing set from King Engine Bearings is designed for the demanding needs of Cummins 6B series diesel engines. These bearings are crucial for the rotating assembly, providing a smooth, low-friction surface for the crankshaft to spin within the engine block. This specific set is 1.0mm undersize, intended for crankshafts that have been machined to match this specification during an engine rebuild.

King Engine Bearings is a well-known name in engine components, and this set reflects their focus on durable materials for high-mileage diesel applications. The bimetal construction offers good wear resistance and load-carrying capacity, essential for the torque produced by these inline-6 Cummins engines found in a range of Dodge and Ram trucks from 1989 through 2012, including models like the D250, Ram 2500, and Ram 3500.

When rebuilding a Cummins engine, using bearings that meet or exceed original specifications is important for longevity and performance. This 1.0mm undersize set is a direct replacement for engines where the crankshaft has been reground to this size.