What does 'undersize 0.50mm' mean for these bearings?

This means the bearings are manufactured to be 0.50mm larger in diameter than a standard-sized bearing. This size is used when the engine's crankshaft journals have been machined down (ground undersize) to remove wear or damage. The undersize bearing compensates for the material removed from the crankshaft.

Are these bearings sold individually or as a set?

This is a set of connecting rod bearings. Typically, a set includes all the bearings needed for all the connecting rods in the engine.

What is the typical application for replacing connecting rod bearings?

Connecting rod bearings are usually replaced during an engine rebuild or overhaul. This is often done when an engine has high mileage, shows signs of excessive wear, or if the crankshaft journals need to be machined due to damage or wear.

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Specifications

Brand: ACL
Part #: 4B4390A-.50

ACL Ford Prod. 4 2.0L Duratec 2005-on Engine Connecting Rod Bearing Set

Name: ACL Ford Prod. 4 2.0L Duratec 2005-on Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-4-2-0l-duratec-2005-on-engine-connecting-rod-bearing-set-t14-631994
Price: 10.38 USD
Availability: BackOrder

$10.38

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Fits 2005 Ford Focus. ACL connecting rod bearings, undersize 0.50mm, for 2.0L Duratec engines. A solid choice for engine rebuilds.

Key Features

Fits 2005 Ford Focus.
ACL connecting rod bearing set for 2.0L Duratec engines.
Undersize 0.50mm, suitable for use with machined crankshafts.
Well-built for reliable engine performance.

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About this part

Product Details

ACL has been making engine bearings for decades, and these connecting rod bearings for your 2005 Ford Focus are one of their staples. If you're rebuilding the 2.0L Duratec engine in your Focus, getting the right bearings is crucial for proper oil clearance and engine longevity. These are an undersize bearing, meaning they are 0.50mm larger in diameter than standard, which is typically used when the crankshaft journals have been machined undersize to correct wear.

These bearings are well-built and designed to handle the demands of daily driving and occasional spirited use. ACL is known for their consistent manufacturing, ensuring that each bearing meets the necessary specifications for a reliable engine rebuild. When installing, always ensure the crankshaft journals are clean and properly measured, and refer to the manufacturer's service manual for the correct installation procedure and torque specifications.