What does the 0.25 size designation mean for these bearings?

The 0.25 designation indicates that these main bearings are 0.25mm undersize. This is typically used when the crankshaft journals have been machined down by 0.25mm to ensure proper clearance and fit.

What makes the King XP Series bearings suitable for performance applications?

The XP Series bearings are built with a special overlay that offers improved durability and wear resistance compared to standard bearings. This helps them maintain their integrity and oil clearance under the higher stresses of performance engines.

Are these bearings a direct replacement for stock bearings?

These are performance main bearings and are 0.25mm undersize. While they are designed for the Ford Escort/Sierra YB 2.0L DOHC Cosworth engine, they are intended for builds where the crankshaft has been machined to match the undersize specification.

Specifications

Brand: King Engine Bearings
Part #: MB5672XP0.25
UPC: 611500541698

King Ford Escort/Sierra YB 2.0L DOHC Cosworth (Size 0.25) Performance Main Bearing Set

Name: King Ford Escort/Sierra YB 2.0L DOHC Cosworth (Size 0.25) Performance Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-ford-escort-sierra-yb-2-0l-dohc-cosworth-size-0-25-per-t14-4336848
Price: 143.40 USD
Availability: BackOrder

$143.40

On Backorder

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

King Engine Bearings main bearing set for Ford Escort/Sierra YB 2.0L DOHC Cosworth. Size 0.25. Built for performance applications.

Key Features

Fits Ford Escort/Sierra YB 2.0L DOHC Cosworth.
Main bearing set for performance engine builds.
0.25mm undersize for crankshaft machining.
XP Series features a durable overlay for improved wear resistance.
Designed to maintain consistent oil clearance under load.

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About this part

Product Details

If you're rebuilding the bottom end of your Ford Escort or Sierra with the YB 2.0L DOHC Cosworth engine, a solid set of main bearings is crucial for proper crankshaft support. These King XP Series main bearings are designed to handle the demands of performance builds, offering improved durability and consistent oil clearance under stress.

The XP Series bearings feature a special overlay that's tougher than standard bearings, helping them resist wear and maintain their shape even when the engine is pushed hard. They are built with a specific wall thickness that's 0.25mm undersize, which is important to note if you're machining your crankshaft. King has a good reputation for making well-built bearings that fit right and perform reliably, making them a popular choice for engine builders looking for a step up from stock.