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

This means the bearings are made to fit a crankshaft that has been machined down by 0.25mm. It's a common specification when rebuilding an engine with worn crankshaft journals.

Do these bearings come with new rod bolts?

This product is a set of connecting rod bearings only. New rod bolts are typically sold separately and are recommended for engine rebuilds.

How do I know if I need undersize bearings?

You need undersize bearings if your engine's crankshaft journals have been measured and found to be worn beyond the standard size. A machine shop performing the engine rebuild will determine the correct undersize needed.

Specifications

Brand: ACL
Part #: 4B1636-.25

ACL VW 4 1471-1588-1715cc 1973-84 Engine Connecting Rod Bearing Set

Name: ACL VW 4 1471-1588-1715cc 1973-84 Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-vw-4-1471-1588-1715cc-1973-84-engine-connecting-rod-bearing-set-t14-631855
Price: 8.77 USD
Availability: BackOrder

$8.77

On Backorder

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

ACL connecting rod bearings for VW 1973-84 1.5L/1.6L engines. This set is 0.25mm undersize for rebuilding worn crankshafts.

Key Features

Connecting rod bearing set — replaces worn bearings for proper engine function.
0.25mm undersize — designed for use with crankshafts machined to this specification.
Direct fit for 1973-1984 Volkswagen 1.5L and 1.6L engines.

This bearing set is designed for 1973-1984 Volkswagen models with 1.5L and 1.6L engines. Always confirm fitment with your specific vehicle details.

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