What does the +0.26mm sizing mean for these bearings?

The +0.26mm sizing means these bearings are designed to be installed on a crankshaft that has had its main journals machined down by 0.26mm. This is a common practice during engine rebuilding to correct wear or damage on the crankshaft.

What is the advantage of King Engine Bearings' tri-metal construction?

King Engine Bearings' tri-metal construction uses multiple layers of materials to create a bearing with improved strength, durability, and wear resistance. This helps the bearings withstand the high loads and temperatures found in an engine.

What is the proper oil clearance for these bearings?

Proper oil clearance is crucial for engine bearing function. While these bearings are designed for a +0.26mm undersize crank, you should always refer to the King Engine Bearings installation instructions or your vehicle's service manual for the specific recommended oil clearance range for your TB48DE engine.

Specifications

Brand: King Engine Bearings
Part #: MB7782XP.026
UPC: 611500611445

King Engine Bearings Nissan TB48DE Main Bearing Set - Size +0.26mm

Name: King Engine Bearings Nissan TB48DE Main Bearing Set - Size +0.26mm
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-nissan-tb48de-main-bearing-set-size-0--t14-432607
Price: 236.92 USD
Availability: BackOrder

$236.92

On Backorder — Expected to ship by Oct 18, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits Nissan TB48DE engines.
Main bearing set is sized +0.26mm for use with machined crankshafts.
Features King Engine Bearings' tri-metal material construction for improved strength and wear resistance.
Supports the crankshaft and reduces friction during engine operation.
Essential for engine longevity and performance during rebuilds.

This bearing set is specifically sized for Nissan TB48DE engines with crankshafts machined to a +0.26mm undersize. Always confirm your engine and crankshaft specifications before purchasing.

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About this part

Product Details

This is a set of main bearings from King Engine Bearings, specifically sized at +0.26mm for Nissan TB48DE engines. Main bearings are critical components that sit between the crankshaft and the engine block, supporting the crankshaft and allowing it to rotate smoothly. They are designed to handle the immense forces generated during combustion and reduce friction, which is essential for engine longevity and performance.

King Engine Bearings uses a unique tri-metal material construction for these bearings, which offers improved strength and wear resistance compared to standard bearings. The +0.26mm sizing indicates these are intended for use when the crankshaft journals have been machined down by 0.26mm, a common practice during engine rebuilding to clean up wear or damage. This precise sizing ensures a proper oil clearance, which is vital for lubrication and preventing metal-on-metal contact.

When rebuilding a Nissan TB48DE engine, using well-built bearings like these from King Engine Bearings is a solid choice. They are designed to handle the demands of the engine and contribute to a reliable rebuild. Always ensure your crankshaft journals are properly measured and machined to the correct undersize before installing these bearings, and follow the manufacturer's lubrication and installation guidelines.