What does '0.020 inch undersize' mean for these bearings?

This means the bearings are manufactured to be 0.020 inches smaller in diameter than standard. They are used when the engine's crankshaft journals have been ground down by 0.020 inches to remove wear or damage.

Are these bearings sold individually or as a set?

This is a set of main bearings. It includes all the main bearings needed to replace the set in your engine.

What type of VW engines do these bearings fit?

These bearings are designed for VW 1588cc and 1984cc engines, typically found in air-cooled models produced from 1974 onwards.

Specifications

Brand: ACL
Part #: 5M1643A-.50

ACL VW 4 1588-1715-1780-1984cc 1974-on Engine Crankshaft Main Bearing Set

Name: ACL VW 4 1588-1715-1780-1984cc 1974-on Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-vw-4-1588-1715-1780-1984cc-1974-on-engine-crankshaft-main-bearing-set-t14-632311
Price: 24.38 USD
Availability: BackOrder

$24.38

On Backorder

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

ACL main bearing set for VW 1588cc and 1984cc engines. Undersize by 0.020 inches for crankshaft repair.

Key Features

Main bearing set — replaces worn main bearings on the crankshaft.
0.020 inch undersize — for use with machined crankshaft journals.
Designed for VW 1588cc and 1984cc engines — fits air-cooled models from 1974 onward.