What does the '+0.50mm' size mean for these bearings?

The '+0.50mm' designation indicates that these bearings are 0.50mm larger in diameter than standard size. They are intended for use when the crankshaft journals have been machined down by 0.50mm to correct wear or damage.

Are these bearings suitable for a daily driver or only for racing?

These are King's pMax Black racing line bearings, featuring a tri-metal construction for enhanced strength and durability. While excellent for racing, their robust design also makes them a strong choice for daily drivers seeking improved longevity and performance, especially after engine work.

Do these bearings come with installation instructions?

While specific installation instructions are not included with the product listing, it is critical to follow the manufacturer's recommended procedures for bearing installation. This typically involves proper cleaning of the crankshaft and block, correct torque specifications, and appropriate lubrication.

King Engine Bearings Renault R9/R11 (Size +0.50mm) Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5180XP0.5
UPC: 611500559396

King Engine Bearings Renault R9/R11 (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Renault R9/R11 (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
Price: 105.40 USD
Availability: InStock

$105.40

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Fits 1984-1987 Renault Alliance. King Engine Bearings main bearing set, 0.50mm undersize. Essential for engine rebuilds.

Key Features

Fits 1984-1987 Renault Alliance and 1985-1986 Renault Encore.
Main bearing set with a 0.50mm undersize for use with machined crankshafts.
Features King's pMax Black racing line tri-metal construction.
Designed for improved strength and durability in engine applications.

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Fits these vehicles

Renault Alliance 1984-1987
Renault Encore 1985-1986

Product Details

If you're rebuilding the engine in your 1984-1987 Renault Alliance, getting the main bearings right is crucial for long-term reliability. These main bearings from King Engine Bearings are designed to replace the original equipment, but with an important difference: they are a 0.50mm undersize. This means they are intended for use when the crankshaft journals have been machined down by 0.50mm to clean up wear or damage.

King's pMax Black racing line bearings are built with a tri-metal construction, offering improved strength and durability for demanding applications. This material setup helps them handle higher loads and temperatures compared to standard bearings, making them a solid choice for a performance-oriented rebuild or when you want extra assurance against wear. The precise sizing ensures they fit right onto the prepared crankshaft journals and into the engine block.

When installing these bearings, remember to follow the manufacturer's instructions carefully, especially regarding crankshaft journal preparation and lubrication. Proper installation is key to getting the most out of these well-built components and ensuring your engine runs smoothly for miles to come.