This ACL High Performance Main Bearing Set is sized for a stock, unmachined 4B11T crankshaft journal (Standard). It fits the turbo four-cylinder used in the 2008, and 2010-2015 Mitsubishi Lancer Evolution X, in GSR and MR trims.
Specifications:
- Type: Main Bearing Set
- Series: High Performance
- Size: Standard
- Engine Fitment: Mitsubishi 4B11T (2008+ Evo X)
- Part Number: 5M1237H-STD
FAQ
What does "Standard" size mean on this bearing set?
Standard means the bearings are sized for a stock, unmachined 4B11T crankshaft journal - no regrind needed.
What vehicles does this fit?
The 4B11T-powered 2008, and 2010-2015 Mitsubishi Lancer Evolution X, in both GSR and MR trims.
Is this a main or rod bearing set?
Main bearing set - it supports the crankshaft in the engine block.

