What does the +0.25mm sizing mean for these bearings?

The +0.25mm sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm. This is a common practice during engine rebuilds to ensure a fresh, smooth surface for the bearings to run on.

What type of engine load are these bearings best suited for?

These bearings are specifically designed for medium-load engines. This means they are a good choice for vehicles that see regular daily driving and moderate performance use, but may not be intended for extreme, constant high-RPM operation.

What is the material composition of these bearings?

The bearings are made from a bi-metal aluminum material, which is a popular choice for engine bearings due to its good thermal conductivity and wear resistance. They also feature a lead-free composite, making them an environmentally safer option.

Specifications

Brand: King Engine Bearings
Part #: MB4524SI0.25
UPC: 611500606298

King Bearings Nissan VR38DETT VQ35HR VQ37HR Performance Crankshaft Main Bearings - Size +0.25mm

Name: King Bearings Nissan VR38DETT VQ35HR VQ37HR Performance Crankshaft Main Bearings - Size +0.25mm
Brand: King Engine Bearings
SKU: king-engine-bearings-king-bearings-nissan-vr38dett-vq35hr-vq37hr-performance-cra-t14-205441
Price: 115.08 USD
Availability: InStock

$115.08

Only 2 left in stock

King Bearings Nissan VR38DETT VQ35HR VQ37HR Performance Crankshaft Main Bearings - Size +0.25mm. A well-built bearing set for medium-load engines.

Key Features

Fits a wide range of Nissan and Infiniti vehicles with VR38DETT, VQ35HR, and VQ37HR engines.
Main bearings are sized +0.25mm for use with a machined crankshaft.
Constructed with a bi-metal aluminum material for durability.
Features a lead-free, environmentally safe composite.
Designed for medium-load engine applications.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're rebuilding the bottom end of your Nissan VR38DETT, VQ35HR, or VQ37HR engine, getting the right main bearings is crucial for proper crankshaft support. These performance crankshaft main bearings from King Engine Bearings are a well-built option designed for medium-load applications, offering a solid foundation for your engine's rotating assembly. They are specifically sized at +0.25mm, which is important if your crankshaft journals have been machined to this size during a rebuild.

King Engine Bearings specializes in creating high-performance engine bearings, and this set is constructed with a bi-metal aluminum material. This composition is ideal for engines that see regular use and moderate stress, providing reliable performance. The lead-free composite is also an environmentally safe choice. These bearings fit a wide range of popular Nissan and Infiniti models, including the Nissan 370Z, Infiniti Q50, and Nissan GT-R, among many others.