4JJ1 Upgraded Turbo Bolt-On Replacement suitable for Isuzu D-Max and MU-X 2016-2020 DPF Model
This PPRC bolt-on upgraded turbo is a direct replacement for the factory MHI turbo on the 4JJ1 DPF model Isuzu D-Max and MU-X. It bolts straight on in place of the factory unit, with no changes to the dump pipe, intercooler piping or intake, and no adaptor kits. That makes it the most straightforward way to get rid of the factory turbo for good and pick up real performance at the same time.
Please note: this is a wastegated turbo, so the vehicle needs an ECU tune once it’s fitted.
The problem with the factory MHI turbo
The MHI turbo fitted to the 2016-2020 4JJ1 DPF D-Max and MU-X is a known failure point. Some owners have been through as many as six replacement turbos under Isuzu warranty, and once the warranty runs out, every failure comes out of your own pocket. Fitting another factory turbo puts the same weak part back on the engine.
The PPRC 44mm bolts into the same place, so instead of fitting another factory MHI turbo, you replace it with an upgrade that’s suitable for up to 260hp.
🚗 Suitable for:
- Isuzu D-Max 4JJ1 DPF model, 2016 to August 2020
- Isuzu MU-X 4JJ1 DPF model, 2016 to July 2021
- Not suitable for the 4JJ3 engine (D-Max from August 2020, MU-X from August 2021)
- Not suitable for the Holden Colorado
📦 What’s Included:
- 1x PPRC bolt-on upgraded turbo with a 44mm compressor
- Braided oil feed line
- Oil drain flange and gasket
- Banjo bolts and sealing washers
🔧 Fitment Details:
- 100% bolt-on in place of the factory MHI turbo
- No modification to the dump pipe, intercooler piping, adaptor kits or intake
- Wastegated, so an ECU tune is required after fitting
⚙️ Performance:
With a tune, the PPRC 44mm is a safe direct replacement for the factory turbo. On the stock injectors, expect a strong-running vehicle at around 200hp, and the stock injectors make good use of this turbo at that level. The turbo itself is suitable for up to 260hp.
For a complete performance package, pair it with:
- 4JJ1 DPF Model +30 High Flow Injector Set suitable for Isuzu D-Max 2016-2020
- PDI Front Mount Intercooler Kit suitable for Isuzu D-Max / MU-X 2012-2020
- Manta 3-inch Exhaust System suitable for Isuzu D-Max 2017-2020 3.0L 4JJ1
❓ FAQs:
Q: Is this a replacement for my failed factory turbo?
A: Yes. It bolts on in place of the factory MHI turbo on the 2016-2020 4JJ1 DPF model, with no changes to the dump pipe, intercooler piping or intake. It does need an ECU tune once fitted.
Q: Do I need a tune?
A: Yes. It’s a wastegated turbo, so the ECU has to be tuned to suit it.
Q: Will it fit my 2021 D-Max?
A: No. The D-Max from August 2020 and the MU-X from August 2021 run the 4JJ3 engine, which this turbo doesn’t suit.
Q: How much power will it make?
A: Around 200hp is a very good result on the stock injectors. The turbo is suitable for up to 260hp with supporting upgrades such as +30 injectors, an intercooler and a 3-inch exhaust.

















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