What does it mean that these bearings are undersize .25mm?

This means the inside diameter of the bearings is 0.25mm smaller than the standard size. This is used when the crankshaft journals have been machined down (ground) by 0.25mm to remove imperfections or wear, ensuring proper oil clearance.

What is the tri-metal overlay on these bearings?

The tri-metal overlay is a specific material composition used on the bearing surface. It's known for its strength, ability to conform to the crankshaft, and excellent wear characteristics, which helps the bearing last longer and perform better under load.

Do I need to replace anything else when installing these main bearings?

When rebuilding an engine with main bearings, it's standard practice to also replace the connecting rod bearings. You should also inspect the crankshaft for straightness and wear, and ensure the engine block surfaces are clean and free of debris.

ACL Ford Duratec Crankshaft Main Bearing Set 4M7262A-.25

Name: ACL Ford Prod. V6 2.5L/3.0L Duratec 1995-on Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-v6-2-5l-3-0l-duratec-1995-on-engine-crankshaft-main-bearing-se-t14-631009
Price: 18.60 USD
Availability: BackOrder

ACL Ford Prod. V6 2.5L/3.0L Duratec 1995-on Engine Crankshaft Main Bearing Set

$18.60

On Backorder

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

ACL Ford Duratec 2.5L/3.0L crankshaft main bearing set. Undersize .25mm for a precise fit.

Key Features

Fits 1995-on Ford Duratec 2.5L and 3.0L V6 engines.
Main bearing set for crankshaft support.
Undersize .25mm for use with machined crankshafts.
Features a tri-metal overlay for improved load handling and wear resistance.
Helps maintain proper oil clearance for engine longevity.

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Will this fit your vehicle?

Product Details

ACL's 4M7262A-.25 main bearing set is built for Ford Duratec V6 engines, specifically the 2.5L and 3.0L found in models from 1995 onward. These bearings are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block. This particular set is undersized by 0.25mm, which is important if you're rebuilding an engine with a crankshaft that has been machined to match this size.

ACL uses a specialized tri-metal overlay on these bearings, which is a well-known material for its ability to handle high loads and provide excellent wear resistance. This construction helps maintain consistent oil clearance, even under demanding conditions, which is key for engine longevity. When you're rebuilding an engine, getting the bearing clearances just right is critical for performance and durability, and this set is designed to help you achieve that.

This set includes the main bearings needed for a crankshaft rebuild. Always refer to your vehicle's specific service manual for the correct installation procedures and torque specifications when replacing engine bearings.