What does 'undersize 0.75mm' mean for these bearings?

This means the bearings are manufactured to be 0.75mm smaller in diameter than the original factory size. This is necessary when the crankshaft journals have been ground down to a smaller diameter during an engine rebuild to remove wear or damage.

What vehicles does this specific ACL bearing set fit?

This set is designed for Ford V6 engines, including the 3.8L and 4.2L displacements. It fits specific years of the Ford Mustang, Ford Thunderbird, Ford Windstar, and Mercury Cougar.

Are these bearings sold individually or as a set?

This product is a set of crankshaft main bearings. It includes all the necessary bearings to replace the main bearings for the specified Ford V6 engine applications.

Specifications

Brand: ACL
Part #: 4M7295A-.75

ACL Ford Prod. V6 232 - 256 1982-on Engine Crankshaft Main Bearing Set

Name: ACL Ford Prod. V6 232 - 256 1982-on Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-v6-232-256-1982-on-engine-crankshaft-main-bearing-set-t14-631069
Price: 28.17 USD
Availability: BackOrder

$28.17

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Fits Ford Thunderbird 1982-1997. ACL crankshaft main bearings for V6 3.8L/4.2L engines. Undersize 0.75mm.

Key Features

Fits 1982-1997 Ford Thunderbird.
Designed for Ford V6 3.8L (232ci) and 4.2L (256ci) engines.
This is a 0.75mm undersize bearing set, intended for use with a machined crankshaft.
Helps maintain proper crankshaft clearance for optimal oil flow and engine lubrication.
Well-built bearings from ACL to ensure reliable engine operation.

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About this part

Product Details

This ACL main bearing set is built for Ford V6 engines, specifically the 3.8L (232ci) and 4.2L (256ci) found in many 1982 and newer Thunderbirds, Mustangs, Windstars, and Mercury Cougars. These bearings are crucial for keeping your crankshaft spinning smoothly within the engine block. This particular set is undersized by 0.75mm, which is important if your crankshaft has been machined to a smaller diameter during a rebuild. Proper bearing clearance is key to oil flow and engine longevity, and these well-built bearings help maintain that critical tolerance.

When you're rebuilding an engine or addressing bottom-end noise, a set of reliable main bearings like these from ACL is a solid choice. They are designed to fit right into the specified Ford V6 applications, making installation straightforward for a mechanic. Ensure you have the correct clearance measurements and follow the manufacturer's lubrication and installation procedures for best results.