What does 'undersize 0.25mm' mean for these bearings?

This means the bearings are manufactured to be 0.25 millimeters smaller in diameter than a standard size bearing. They are intended for use when the engine's crankshaft journals have been machined down by 0.25mm during an engine rebuild.

Why is proper oil clearance important for connecting rod bearings?

Proper oil clearance allows a thin film of oil to circulate between the bearing and the crankshaft. This oil film prevents metal-on-metal contact, reduces friction and heat, and ensures the bearing surfaces are properly lubricated.

Does this bearing set come with all the necessary hardware?

This product is a set of connecting rod bearings. It does not include crankshafts or other engine components. Always refer to your vehicle's specific repair manual for a complete list of parts needed for your engine rebuild.

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

Specifications

Brand: ACL
Part #: 4B4390A-.25

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-t14-630866
Price: 8.79 USD
Availability: BackOrder

$8.79

On Backorder

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

Fits 2005 Ford Focus. This ACL connecting rod bearing set is undersize 0.25mm, helping to restore proper oil clearance.

Key Features

Fits 2005 Ford Focus.
ACL connecting rod bearing set for 2.0L Duratec engines.
Bearing set is 0.25mm undersize for use with machined crankshafts.
Helps restore proper oil clearance and lubrication.

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Fits this vehicle

Ford Focus 2005

Product Details

This ACL connecting rod bearing set is built for the 2005 Ford Focus with the 2.0L Duratec engine. When your connecting rod bearings wear down, they can cause increased clearance between the rod and the crankshaft. This can lead to knocking noises and, eventually, serious engine damage. This set is manufactured to be 0.25mm undersize, which is crucial for rebuilding an engine where the crankshaft journals have been machined down to match this undersize specification. Using the correct undersize bearing ensures proper oil clearance, which is vital for lubrication and preventing metal-on-metal contact.

When you're rebuilding an engine, getting the bearing clearances right is key. This ACL set is a solid option for ensuring your 2.0L Duratec gets the proper lubrication it needs.