What does '1.00mm undersize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 1.00mm. This is common when rebuilding an engine with worn or damaged journals.

Do these bearings come with new hardware?

This set includes the connecting rod bearings only. New bearing cap bolts or nuts are typically recommended and sold separately.

What is the proper oil clearance for these bearings?

Refer to the manufacturer's installation instructions for the specific oil clearance specifications for your engine model. Proper oil clearance is critical for engine health.

Specifications

Brand: ACL
Part #: 6B1238A-40

ACL WHEN STOCK EXHAUSTED USE 6B1238A-1.00 Engine Connecting Rod Bearing Set

Name: ACL WHEN STOCK EXHAUSTED USE 6B1238A-1.00 Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-when-stock-exhausted-use-6b1238a-1-00-engine-connecting-rod-bearing-set-t14-633240
Price: 14.04 USD
Availability: BackOrder

$14.04

On Backorder

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

Worn connecting rod bearings cause engine noise and damage. This ACL set is a direct replacement for your stock bearings.

Key Features

Direct replacement for stock bearings — fits your engine without modification.
Made to OEM specifications — ensures proper oil clearance and performance.
1.00mm undersize — for use with crankshafts that have been machined down by 1.00mm.