What does 0.25mm undersize mean for these rod bearings?

This means the bearings are slightly smaller than standard size. They are designed to be used when the engine's crankshaft has been machined down by 0.25mm during a rebuild or performance modification to ensure proper oil clearance.

Do these bearings come with new rod bolts?

No, this set includes only the rod bearings themselves. You will need to source new rod bolts separately if required for your engine build.

Are these bearings suitable for a stock 2JZ engine?

These bearings are 0.25mm undersize and intended for engines where the crankshaft has been machined. For a stock, unmachined crankshaft, you would need standard size bearings.

Specifications

Brand: ACL
Part #: 6B8100H-.25
UPC: 9315726280799

ACL Toyota/Lexus 2JZGE/2JZGTE 3.0L 0.25 Oversized High Performance Rod Bearing Set

Name: ACL Toyota/Lexus 2JZGE/2JZGTE 3.0L 0.25 Oversized High Performance Rod Bearing Set
Brand: ACL
SKU: acl-acl-toyota-lexus-2jzge-2jzgte-3-0l-0-25-oversized-high-performance-rod-beari-t14-13066
Price: 99.48 USD
Availability: BackOrder

$99.48

On Backorder — Expected to ship by Jul 9, 2026

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

ACL 0.25mm undersize rod bearings for Toyota 2JZGE/2JZGTE 3.0L engines. Essential for rebuilding or performance builds.

Key Features

0.25mm Undersize Bearings — For use with a crankshaft machined down by 0.25mm.
For 2JZGE and 2JZGTE Engines — Direct fit for Toyota 3.0L inline-six engines.
ACL Brand — A popular choice for engine builders.
Engineered for Performance — Built to handle increased stress in performance applications.