This ACL High Performance connecting rod bearing set is machined 0.25mm oversize for the Mitsubishi 4G63/4G64 6-bolt, 1st generation DSM (Dodge/Eagle/Mitsubishi) engine. The 0.25mm oversize spec is for a crankshaft rod journal that has been machined 0.25mm over stock, a step commonly done when reconditioning a used crank.
Specifications:
- Type: Rod Bearing Set
- Size: 0.25mm Oversize
- Engine Fitment: Mitsubishi 4G63 / 4G64, 6-Bolt (1st Gen DSM)
- Part Number: 4B1146H-.25
FAQ
What does 0.25mm oversize mean?
It means the bearing is sized for a crankshaft rod journal machined 0.25mm over the stock dimension, typical after a crank regrind.
What engine does this fit?
The Mitsubishi 4G63/4G64 6-bolt engine used in 1st generation DSM (Dodge/Eagle/Mitsubishi) applications.
Do I need this size or the Standard set?
Use this 0.25mm oversize set only if your crank's rod journals were machined 0.25mm over stock. Otherwise use the Standard size set.
Is this a rod or main bearing set?
This is a rod (connecting rod) bearing set only.

