Isuzu 4JJ1 Performance Parts & Upgrades

The Isuzu 4JJ1 3.0L turbo-diesel is the backbone of the D-MAX and MU-X lineup. Renowned for reliability, strong torque and tuning potential, the 4JJ1 has become a favourite for both touring and performance builds.

This collection highlights key engine-specific upgrades for the 4JJ1:

  • ✅ High-flow injectors & nozzle upgrades
  • ✅ Turbochargers, manifolds & dump pipes
  • ✅ Intercoolers & intake manifolds
  • ✅ Alloy dress-up covers & bling kits

⚠️ Note: This isn’t our full 4JJ1 range. Many vehicle compatible parts such as clutches, suspension, fuel system upgrades and accessories are also available under other categories. If you don’t see what you need here, explore the wider store or contact us — chances are we have it.