MRX Performance Crankshaft

Built for serious horsepower builds, the MRX Performance Crankshaft replaces the stock unit to deliver rock-solid durability, improved balance, and confidence under extreme load.

Key Features & Benefits

• Billet / Forged Construction — Manufactured from premium material for maximum strength under high stress

• Full Counterweight Design — Superior balancing reduces vibration, extends bearing life, and improves engine smoothness

• Standard Stroke (3000 cc) Replacement — Fits directly without needing to modify stroke or compression

• Engineered for High Power Builds — Ideal upgrade for builds that push beyond stock limits

• Premium Component to Match Upgraded Internals — Combines well with forged pistons, reinforced rods, and main cap girdles for a true bottom-end upgrade

📋 Fitment / Compatibility

This crankshaft is suited for 4JJ1 diesel engines, specifically:

• Holden Rodeo RA7 (2007–2008)

• Holden Colorado RC (2008–2012)

• Isuzu D-Max (2008–2020)
  (All with 4JJ1 engine)