What is the main function of crankshaft main bearings?

Crankshaft main bearings support the crankshaft as it spins within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while maintaining critical oil pressure for lubrication and cooling.

What does 'flanged bearing thrust' mean for this kit?

Flanged bearing thrust refers to specific bearings within the set that have a flange. These flanges help control the axial (end-to-end) movement of the crankshaft, preventing it from moving too far forward or backward within the engine.

Are these bearings the standard size?

Yes, this is the ACL 4M860A-STD set, indicating 'STD' for standard size. These bearings are designed to fit a crankshaft that is within the manufacturer's original factory specifications.

ACL Ford Prod. V6 159-171-177 1972-90 Engine Crankshaft Main Bearing Set

Specifications

Brand: ACL
Part #: 4M860A-STD

ACL Ford Prod. V6 159-171-177 1972-90 Engine Crankshaft Main Bearing Set

Name: ACL Ford Prod. V6 159-171-177 1972-90 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-v6-159-171-177-1972-90-engine-crankshaft-main-bearing-set-t14-630942
Price: 25.16 USD
Availability: BackOrder

$25.16

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Fits 1983-1992 Ford Ranger. ACL crankshaft main bearing set for Ford V6 engines. Direct fit.

Key Features

Fits 1983-1992 Ford Ranger.
Designed for Ford V6 engines: 159ci (2.6L), 171ci (2.8L), and 177ci (2.9L).
Includes flanged bearing thrust for crankshaft positioning.
Meets original equipment specifications for proper fit and function.
Well-built replacement for essential engine bottom-end components.

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Fits this vehicle

Ford Ranger 1983-1992

Product Details

You get a full set of crankshaft main bearings in this kit, which means one box handles the critical bottom-end rebuild for your Ford V6 engine. These bearings are what the crankshaft spins on inside the engine block. They're essential for keeping friction down and oil pressure up, so your engine runs smoothly and lasts longer. This set is specifically made for Ford's 159ci (2.6L), 171ci (2.8L), and 177ci (2.9L) V6 engines found in various Ford Rangers from 1983 to 1992.

ACL has been making engine bearings for a long time, and this set is built to meet the original specifications for your engine. They're a well-built replacement part that ensures proper clearance and oil flow between the crankshaft and the block. This particular set includes flanged bearing thrust, which is important for controlling the crankshaft's end-to-end movement. Installing new main bearings is a key part of any engine rebuild or major repair, ensuring the crankshaft is properly supported for years of reliable operation.