What does the STDX sizing mean for these bearings?

The STDX designation indicates that these main bearings are 0.001 inch undersize compared to standard size. This sizing is typically used when the crankshaft journals have been ground undersize during an engine rebuild or repair.

What is the benefit of the performance coating on these bearings?

The performance coating on these King Engine Bearings is designed to reduce friction and wear, particularly under higher loads and temperatures. It also helps maintain a consistent oil film, which is essential for protecting the crankshaft and bearings.

Are these bearings a direct replacement for all SR20DE engines?

These bearings are a direct replacement for the main bearings in Nissan SR20DE engines, provided the crankshaft has been machined to the STDX (0.001 inch undersize) specification. Always verify your crankshaft journal dimensions before ordering.

Specifications

Brand: King Engine Bearings
Part #: MB5243XPCSTDX
UPC: 611500613067

King Engine Bearings Nissan SR20DE (Size STDX) Performance Coated Main Bearing Set

Name: King Engine Bearings Nissan SR20DE (Size STDX) Performance Coated Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-nissan-sr20de-size-stdx-performance-co-t14-504398
Price: 152.19 USD
Availability: BackOrder

$152.19

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King Engine Bearings SR20DE STDX Performance Coated Main Bearing Set MB5243XPCSTDX. Performance coated for improved durability.

Key Features

Fits Nissan SR20DE engines.
Size STDX (0.001 inch undersize) for use with ground crankshafts.
Performance coating helps reduce friction and wear.
Well-built using advanced manufacturing techniques.
Designed to handle higher loads and temperatures.
Helps maintain oil film thickness for engine protection.

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About this part

Product Details

This is a set of King Engine Bearings Performance Coated Main Bearings for Nissan SR20DE engines. These bearings are specifically sized as STDX, which means they are 0.001 inch undersize, often used when the crankshaft journals have been ground undersize during a rebuild. The performance coating on these bearings helps to reduce friction and wear, especially under demanding conditions, contributing to improved engine longevity.

King Engine Bearings uses a unique combination of materials and advanced manufacturing techniques to create well-built engine bearings. The performance coating applied to these main bearings is designed to handle higher loads and temperatures, making them a solid option for SR20DE engines that see spirited driving or track use. This coating also helps to maintain oil film thickness, which is crucial for protecting the crankshaft and bearings from damage.

When rebuilding an SR20DE engine, especially if the crankshaft has been machined, using the correct size and type of main bearings is critical for proper oil clearance and engine health. These STDX bearings are a direct replacement for the main bearings in your SR20DE, assuming the crankshaft has been machined to the corresponding undersize.