What does the +0.75mm sizing mean for these bearings?

The +0.75mm sizing indicates that these bearings are slightly larger than standard size. This is typically used when the crankshaft journals have been machined down by 0.75mm to correct wear or damage, ensuring a proper fit and oil clearance.

What is the advantage of a bimetal aluminum silicon base?

A bimetal construction with an aluminum silicon base offers a good balance of strength, wear resistance, and conformability. This allows the bearing to adapt to the crankshaft surface while maintaining durability under engine operating conditions.

Does this main bearing set come with all the necessary components for installation?

This listing is for the main bearing set only. It is recommended to refer to the manufacturer's installation guide for a complete list of required components and procedures, as additional items like assembly lube and seals may be needed.

Specifications

Brand: King Engine Bearings
Part #: MB5219SI0.75
UPC: 611500464041

King Engine Bearings Ford 281 (4.6L) 1991-1993 (Size +0.75mm) Main Bearing Set

Name: King Engine Bearings Ford 281 (4.6L) 1991-1993 (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-281-4-6l-1991-1993-size-0-75mm-ma-t14-770532
Price: 58.18 USD
Availability: BackOrder

$58.18

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Fits 1991-1994 Lincoln Town Car. King Engine Bearings main bearing set, 0.75mm undersize, made with a bimetal aluminum silicon base.

Key Features

Fits 1991-1994 Lincoln Town Car.
Main bearing set for Ford 281 (4.6L) engines.
Features a bimetal construction with an aluminum silicon base.
Sized at +0.75mm undersize for specific engine applications.
Supports the crankshaft and handles loads in the engine's rotating assembly.

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About this part

Product Details

Built with a bimetal aluminum silicon base, this main bearing set from King Engine Bearings is specifically sized at +0.75mm for Ford's 281 (4.6L) engines from 1991-1993, which are found in your 1991-1994 Lincoln Town Car. These bearings are crucial for the rotating assembly, supporting the crankshaft within the engine block and handling significant loads during operation.

The aluminum silicon base offers good wear resistance and conformability, helping the bearing to adapt to the crankshaft surface for optimal oil film support. This is important for reducing friction and heat, which directly impacts engine longevity and performance. King Engine Bearings is a well-known name in engine components, and this set is made to be a direct fit for the specified applications, simplifying installation for a rebuild or repair.