
TD42 Turbo Upgrade – High Flow Turbocharger for Nissan Patrol GU / GQ TD42 / TD42-T / TD42-TI
TD42 Turbo Upgrade – Spartan HT18-STS50 High Flow Turbocharger
Looking to boost your Nissan Patrol TD42 or Safari TD42T? The Spartan HT18-STS50 is the ultimate TD42 turbo upgrade, designed for Nissan Y61 Patrol GU TD42, Safari TD42T 4.2L, and compatible with Nissan Patrol GQ TD42+T. This high-flow turbocharger delivers 12–28 PSI boost, producing 180–220 WHP depending on vehicle setup and ECU tuning. Built with precision components, it lowers EGTs, reduces EMP, and provides better drivability than your factory HT18 turbo, making it a perfect combination of power and reliability.
⚡ Nissan Patrol TD42 Turbo Upgrade – Specs & Performance
Brand & Model: Spartan Turbocharger Systems, HT18-STS50
Part Numbers:
HT18-6 / 14411-51N00 / 14411-09D60 / 14411-62T00 / 14411-62T00 / 14411-09D60 / 14411-VC710 / 1441109D60 / 14411VC710
Turbo Specs:
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Boost Rating: 12–28 PSI
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Cooling Type: Oil & Water
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Bearing System: Dual Ceramic Ball Bearing
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Compressor Wheel: STS 50MM/67MM 6+6 Billet
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Turbine Wheel: STS 54MM/47MM 9 Blade
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Turbine A/R: 0.42 6CM Nissan 6 Bolt
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Actuator: 14PSI Pre-set TurboSmart
Fitting Notes: The HT18-STS50 is ~90% direct fit to your Nissan Patrol TD42T. It bolts onto your existing Nissan manifold and dump pipe. Hot side and intake piping will require modifications for slip-on hoses instead of bolt-on flanges.
🔧 Recommended Supporting Mods
For best performance with this TD42 turbo upgrade, we recommend:
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Upgraded hot side piping and intake hoses
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High-flow intercooler
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Larger injector nozzles
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Custom ECU tuning
These upgrades will help you achieve the full potential of 180–220 WHP, depending on setup and tuner.
🛠 Built for TD42 Reliability
Spartan Turbocharger Systems has engineered the HT18-STS50 to deliver high performance and reliability for TD42 owners. Designed to handle up to 28 PSI while lowering EGTs and EMP, it outperforms the factory HT18 turbo. Whether for everyday driving or off-road performance, this TD42 turbo upgrade provides consistent power and enhanced drivability.