Crankshaft MD187924 MD346022 for Mitsubishi 4G63 Engine

What the Crankshaft Does

The crankshaft:

• Converts piston motion into rotational power

• Handles combustion load

• Maintains engine balance

• Supports high RPM performance

If it’s worn, scored, or out of spec, nothing else matters.

Replaces OEM Part Numbers

• MD187924

• MD346022

⚠️ Always confirm correct part number based on engine year and application.

Part number:4G63
Application: for Mitsubishi 4G63 Engine

Key Features

• Direct-fit replacement for 4G63

• Precision-machined journals

• Compatible with factory rod and main bearings

• Designed for stock rebuild applications

• Balanced for proper engine operation

Translation: foundation-level engine component.

Ideal Applications

• 4G63 non-turbo rebuilds

• 4G63T turbo refresh projects

• DSM-era restoration builds

• Engine overhaul projects

For high-boost builds, always verify crank material and load rating.

Installation Notes

• Measure all journal clearances

• Use new main and rod bearings

• Check thrust clearance

• Torque to factory spec

• Balance rotating assembly if required

Because crank installation isn’t “close enough” territory.

Final Verdict

The MD187924 / MD346022 Crankshaft for Mitsubishi 4G63 is a critical bottom-end replacement component for proper rebuilds. Correct fitment, restored balance, and essential reliability.

Because boost is useless if the crank can’t handle it.