What does 'Standard Size' mean for these bearings?

Standard size bearings are designed to fit crankshaft journals that are still within their original factory specifications. If your crankshaft has been machined undersize due to wear or damage, you would need a different size bearing.

What is the benefit of bi-metal aluminum construction?

Bi-metal construction typically involves a steel backing for strength and an aluminum alloy overlay for good bearing properties like conformability and embeddability. This combination helps manage loads and reduce friction in the engine.

Are these bearings suitable for high-performance or racing engines?

These bearings are described as ideal for medium-load engines. For high-performance or racing applications with significantly increased loads and RPMs, you may need to consult King Engine Bearings' performance line for specialized bearings.

Specifications

Brand: King Engine Bearings
Part #: MB5781SI
UPC: 611500586217

King Engine Bearings Nissan MR18DE / MR20DE (Size STD) Main Bearing Set

Name: King Engine Bearings Nissan MR18DE / MR20DE (Size STD) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-nissan-mr18de-mr20de-size-std-main-bea-t14-95360
Price: 54.54 USD
Availability: BackOrder

$54.54

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Fits 2013-2021 Nissan NV200. King Engine Bearings main bearing set with bi-metal aluminum construction for improved engine life.

Key Features

Fits 2013-2021 Nissan NV200, 2009-2014 Nissan Cube, 2007-2012 Nissan Sentra, and 2007-2012 Nissan Versa.
Main bearing set for Nissan MR18DE, MR20DE, and Renault M4R engines.
Constructed with a bi-metal aluminum material for durability.
Features a lead-free, environmentally safe composite.
Designed for medium-load engines.
Standard size, suitable for factory-spec crankshaft journals.

⚠️ 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

Built with a bi-metal aluminum material, this main bearing set from King Engine Bearings is a solid option for your Nissan MR18DE, MR20DE, or Renault M4R engine. These bearings are specifically designed for medium-load engines, helping to ensure reliable performance and longevity for your powerplant. King has been specializing in bearings since 1960, focusing on supplying well-built components for the marketplace.

This set is standard size, meaning it's intended for engines where the crankshaft journals are still within their original factory specifications. The lead-free composite construction is also environmentally safe. If you're rebuilding the bottom end of your engine, these main bearings are a critical component to get right.