What does the +0.75mm sizing mean for these bearings?

The +0.75mm sizing indicates that these bearings are designed to fit crankshaft main journals that have been machined down by 0.75mm. This is common in engine rebuilding when the original journals have wear or have been ground to a specific size for a rebuild.

What is trimetal construction?

Trimetal bearings are made of three layers: a steel backing for strength, a middle layer of copper-lead alloy for load carrying capacity, and a thin overlay of babbitt (a soft alloy) for excellent conformability and embeddability. This construction is popular for performance and heavy-duty applications.

Do I need to order anything else with these main bearings?

When rebuilding an engine, you will typically need new main bearing bolts, assembly lube, and potentially a new oil pump and oil pan gasket. Always refer to your vehicle's service manual for a complete list of parts and procedures for your specific engine build.

Specifications

Brand: King Engine Bearings
Part #: MB4542CA0.75
UPC: 611500595219

King Engine Bearings Nissan Vq20DE/Vq25Dd/Vq30DE/Dd/DET/Vq35DE (Size +0.75mm) Main Bearing Set

Name: King Engine Bearings Nissan Vq20DE/Vq25Dd/Vq30DE/Dd/DET/Vq35DE (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-nissan-vq20de-vq25dd-vq30de-dd-det-vq3-t14-770413
Price: 59.64 USD
Availability: BackOrder

$59.64

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King Engine Bearings main bearing set for Nissan VQ engines. Size +0.75mm.

Key Features

Fits a wide range of Nissan and Infiniti vehicles with VQ20DE, VQ25DD, VQ30DE/DD/DET, and VQ35DE engines.
Main bearing set is sized +0.75mm, suitable for machined crankshafts.
Constructed with trimetal material for durability and oil film retention.
Designed for engine rebuilding and bottom-end refresh projects.
Part number MB4542CA0.75 from King Engine Bearings.

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About this part

Product Details

Built with a trimetal construction, these main bearings from King Engine Bearings are designed to handle the demands of your Nissan VQ engine. They are specifically sized at +0.75mm, which is crucial for engines that have been machined or require a slightly larger bearing to achieve proper oil clearance. This set is a solid option for rebuilding or refreshing engines found in a wide range of Nissan and Infiniti vehicles, including models like the Altima, Maxima, 350Z, and Infiniti G35.

The trimetal material offers a good balance of strength and conformability, helping to absorb shock loads and maintain oil film integrity under various operating conditions. When you're rebuilding the bottom end of your engine, getting the main bearings right is key to ensuring longevity and smooth operation. King Engine Bearings is a well-known name in the performance and racing world, and this set reflects their focus on providing reliable engine components.

This set is intended for engines that have had their main journals machined to a +0.75mm undersize. Always ensure you have the correct specifications for your engine build before ordering.