SAK Turbo
4JJ3 44mm Turbo - SAK Turbo
4JJ3 44mm Turbo - SAK Turbo
Regular price
$1,999.00 AUD
Regular price
$2,250.00 AUD
Sale price
$1,999.00 AUD
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4JJ3 44mm Turbo - SAK Turbo
4JJ3 Turbo Upgrade – 44mm Gated Turbo for D-MAX, MU-X & BT-50
🧩 Product Overview
Upgrade your 4JJ3 D-MAX, MU-X, or BT-50 with SAK’s 44mm bolt-on turbo. Built for enthusiasts chasing reliable gains, this unit fits the OEM 4JJ3 manifold and is engineered for strong mid-range torque with quick response.
🔧 Suits
- Isuzu D-MAX – 4JJ3-TCX (2020-on)
- Isuzu MU-X – 4JJ3-TCX (2020-on)
- Mazda BT-50 – 4JJ3-TCX (2020-on)
Direct bolt-on to the stock 4JJ3 exhaust manifold. Supporting mods & professional tuning strongly recommended.
📊 Key Specs
- Compressor: 44 mm, 6/6 blade
- Turbine: 11-blade
- Flange: Stock 4JJ3 manifold pattern
- Rear housing: Size 12 (standard). Small & large A/R available to order.
- Boost capability: ~30–40 psi (with appropriate build & tuning)
- Power range: ~240–280 rwhp with tuning & supporting mods
- Control: External wastegate actuator (gated)
📦 What’s Included
- SAK 44 mm 4JJ3 bolt-on turbocharger
- Wastegate actuator
- Oil feed line, banjos & copper washers
- Oil drain fitting, hose & clamps
- Gasket set
🛠️ Install Notes
- Factory turbo oil drain hose must be cut to length and joined to the supplied drain pipe.
- Tuning is required to realise performance and maintain safe EGTs/fuelling.
- DPF-equipped vehicles may require custom dump/exhaust adaptations. Ensure all modifications comply with your local laws. On-road emissions tampering may be illegal; intended for off-road/competition use where applicable.
💳 Payment & 🚚 Shipping
- 💳 Afterpay, Humm, Klarna & Zip available
- ✈️ Free Express Shipping Australia-Wide — fast, trackable dispatch
Frequently Asked Questions
Do I need an ECU tune after fitting this turbo?
Yes. A professional remap is strongly recommended to set safe boost, rail pressure, and fuelling targets, and to get the best performance.
Will it bolt to the factory 4JJ3 manifold and lines?
Yes, it’s designed for the stock 4JJ3 manifold pattern. You’ll reuse most factory locations; minor oil feed/drain and intake/exhaust tweaks may be needed depending on your setup.
What supporting mods are recommended?
Upgraded intercooler, high-flow intake and exhaust, appropriate injectors if targeting the upper power range, and accurate boost/EGT monitoring.
Does this suit 4JJ1 models?
Yes. This listing is for 4JJ3 (2020+), but will also fit DPF model 4JJ1 (note: custom exhaust is required. Message us with your VIN for the correct 4JJ1 options.
What boost should I run?
Typical tuned setups see ~30–35 psi. Higher targets up to ~40 psi are possible on well-supported builds—always follow your tuner’s guidance.




