Kinugawa TD05H-18G 7cm Turbo for Toyota Land Cruiser 1HD-T / 1HD-FT / 1HD-FTE – 200–250HP

The Kinugawa TD05H-18G 7cm Turbocharger is a high-performance turbo upgrade for Toyota Land Cruiser models powered by the 1HD-T, 1HD-FT and 1HD-FTE 4.2-litre turbo diesel engines.

Rated by Kinugawa for approximately 200–250HP crank / flywheel power, the TD05H-18G is the most popular all-round option in our six-model Kinugawa Land Cruiser 1HD turbo range. It offers a stronger airflow capability than the smaller TD05H-16G while retaining the compact 7cm / A/R .49 turbine housing for responsive spool characteristics.

This makes the TD05H-18G particularly well suited to Land Cruisers used for daily driving, towing, touring, overlanding and general performance use, where a substantial increase over stock power is desired without moving immediately to the larger 20G, 16K, 18K or TD06H options.

Power Capability: 200–250HP crank / flywheel

Recommended Use: Most popular all-round performance upgrade – approximately 50% more power than a typical stock setup when correctly supported and tuned.

Engine Compatibility: Toyota 1HD-T / 1HD-FT / 1HD-FTE 4.2L Turbo Diesel

Important: Turbocharger power capability is not a guaranteed engine output. Actual power depends on engine condition, fuel delivery, boost pressure, intercooling, exhaust and intake flow, and correct tuning / calibration.

Choose the Right Kinugawa Turbo for Your Land Cruiser

OFM4x4 offers six Kinugawa TD05H / TD06H turbo options for Toyota Land Cruiser 1HD diesel engines. This allows the turbo to be selected according to the desired power target, spool characteristics and intended vehicle use.

The TD05H-18G is the recommended all-round choice for owners targeting approximately 200–250HP while still wanting responsive road manners.

Why Choose the TD05H-18G?

The TD05H-18G occupies a particularly useful position in the Kinugawa 1HD range. Its compressor is larger than the 16G, giving greater airflow and top-end potential, but it still uses the same compact TD05H turbine family and 7cm turbine housing.

This gives the 18G a strong balance between:

• Responsive spool
• Good low- and mid-range torque
• Improved top-end airflow
• 200–250HP power capability
• Daily driveability
• Towing performance
• Touring and overland use

For many Land Cruiser builds, the TD05H-18G represents the point where performance increases substantially without pushing the vehicle into a highly specialised high-power setup.

Engine & Vehicle Compatibility

Land Cruiser 80 Series – 1HD-T & 1HD-FT

For the Toyota Land Cruiser 80 Series, Kinugawa specifically lists the TD05H-18G for 1991–1997 HDJ80 / HDJ81 / HDJ82 models equipped with the 1HD-T or 1HD-FT engine.

The turbo is designed as a direct replacement and performance upgrade for Toyota turbo references:

• 17201-17010
• 17201-17030

The turbine housing retains the Toyota CT26 4-bolt inlet and 4-bolt outlet arrangement, allowing bolt-up compatibility with the applicable factory exhaust manifold and dump pipe.

1HD-FTE Compatibility

Kinugawa also lists this TD05H-18G for 1HD-FTE applications.

For vehicles using the 17201-17040 turbo arrangement, including applicable:

• Toyota Land Cruiser HDJ78
• Toyota Land Cruiser HDJ79
• Toyota Land Cruiser HDJ100
• Toyota Land Cruiser HDJ105 / converted applications where applicable

Kinugawa advises confirming the required compressor housing configuration for the 1HD-FTE installation or retaining the 3-inch compressor inlet where suitable.

If ordering for a 1HD-FTE vehicle, please provide the vehicle model and current turbo configuration so the appropriate compressor housing option can be selected.

Technical Specifications

Available Configuration Options

The Kinugawa TD05H-18G is available with several compressor housing, compressor wheel, turbine wheel and actuator configurations, allowing the turbo to be tailored to the intended driving style and power target.

Compressor Housing

• Anti-Surge
• Non Anti-Surge

The compressor housing uses a 3-inch inlet with an A/R .60 nozzle area.

The anti-surge cover uses a ported inlet design to increase compressor operating margin in conditions where the compressor may otherwise approach surge.

Compressor Wheel

• Cast 6+6
• Billet 6+6 – recommended for stronger low-end torque
• Billet 11+0 – recommended for stronger top-end speed and airflow

The TD05H-18G compressor wheel measures 50.3 / 68.0mm.

Compared with the 48.3mm inducer used on the TD05H-16G, the 18G's larger 50.3mm inducer increases compressor airflow capability while still retaining the compact 68mm exducer size.

Turbine Wheel

• 12 Blades STD
• 9 Blades STS
• 10 Blades STS 55

The TD05H turbine wheel measures 49 / 57mm.

Turbine wheel selection affects spool characteristics, exhaust flow and turbine efficiency, allowing the turbo to be configured towards different response and top-end characteristics.

Spring / Actuator Pressure

The standard Kinugawa actuator is supplied at:

1.0 bar / 14.7 PSI – Default

Alternative actuator pressures available from Kinugawa are:

• 0.3 bar
• 0.5 bar
• 0.8 bar
• 1.0 bar – Default
• 1.2 bar
• 1.5 bar
• 1.7 bar
• 2.0 bar

Important: The actuator spring should be selected according to the intended boost target and boost-control strategy. A stronger spring alone does not create safe additional power and should not be used as a substitute for correct tuning.

Cooling Type

Oil & Water Cooled

The TD05H-18G uses engine oil for bearing lubrication together with coolant circulation through the centre housing for additional thermal management.

18G Compressor – 50.3 / 68.0mm

The main difference between the 16G and 18G is the compressor wheel.

The TD05H-18G uses a 50.3mm inducer / 68.0mm exducer compressor, compared with the 16G's 48.3 / 68.0mm wheel.

The larger inducer allows the 18G to move more air and therefore support higher engine power while retaining a relatively compact compressor size.

This is what makes the 18G particularly attractive for a Land Cruiser that still needs responsive road manners but is being tuned beyond the capability of the smaller 16G.

7cm Turbine Housing – Responsive Performance

The TD05H-18G uses the same compact 7cm / A/R .49 turbine housing concept as the 16G.

Kinugawa compares this with the stock CT26's approximately 8cm turbine housing.

A smaller turbine housing increases exhaust-gas velocity and generally improves spool response, although a larger housing can ultimately support greater flow at high engine speeds.

For a 200–250HP Land Cruiser, the 7cm housing offers a particularly useful compromise between:

• Quick spool
• Strong low- and mid-range response
• Good towing performance
• Improved top-end airflow
• Everyday driveability

CT26-Style Bolt-Up Fitment

The TD05H-18G uses a Toyota CT26-style turbine housing.

On compatible 1HD-T / 1HD-FT installations, this allows the turbocharger to bolt to the factory exhaust manifold and dump pipe rather than requiring a completely custom turbine mounting arrangement. :contentReference[oaicite:1]{index=1}

Important 3-Inch Compressor Inlet

The exhaust side is factory-compatible on the stated applications, but the compressor side uses a larger performance inlet.

The compressor housing has a 3-inch inlet. On applicable 1HD-T and 1HD-FT installations, the original air-filter / turbo inlet pipe must therefore be modified or replaced to suit the larger compressor inlet. :contentReference[oaicite:2]{index=2}

This larger inlet reduces restriction and allows the upgraded 18G compressor to receive the airflow required for increased performance.

Journal Bearing with 360° Performance Thrust Bearing

The TD05H-18G uses a journal-bearing centre section with a 360-degree performance thrust bearing. :contentReference[oaicite:3]{index=3}

The 360-degree thrust system is intended to handle the increased axial loading generated by a performance compressor operating at higher airflow and boost levels.

Oil & Water Cooling

The turbocharger centre housing uses both engine oil and coolant. :contentReference[oaicite:4]{index=4}

Oil provides lubrication to the journal bearing system, while coolant circulation assists with thermal management of the centre housing.

Correct oil supply, coolant circulation and turbo priming remain critical during installation.

200–250HP Performance Capability

Kinugawa rates the TD05H-18G diesel configuration at approximately 200–250HP crank horsepower. :contentReference[oaicite:5]{index=5}

This represents potential turbo airflow capability rather than guaranteed engine output.

To achieve the intended performance safely, the complete engine system needs to support the airflow provided by the larger turbo.

Key factors include:

• Fuel delivery
• Injection pump or ECU calibration
• Boost pressure
• Intercooler efficiency
• Intake airflow
• Exhaust flow
• Engine condition
• Exhaust gas temperature
• Ambient temperature and altitude

Why the TD05H-18G Is the Most Popular Choice

The 18G offers a larger compressor than the entry-level 16G without moving immediately into the larger airflow requirements and potentially slower response associated with higher-output turbo combinations.

For many Land Cruiser owners, approximately 200–250HP represents a substantial improvement in performance while remaining suitable for a road-driven, touring or towing vehicle.

The TD05H-18G therefore makes particular sense for:

• Daily-driven performance Land Cruisers
• Touring builds
• Overland vehicles carrying additional weight
• Vehicles towing trailers or caravans
• Land Cruisers running larger tyres
• Vehicles with upgraded intercoolers
• Vehicles with free-flowing 3-inch exhaust systems
• Owners wanting significantly more power without building for extreme horsepower

TD05H-16G vs TD05H-18G

Choose the TD05H-16G if fast spool and up-to-200HP capability are more important than maximum airflow.

Choose the TD05H-18G if you want the stronger 200–250HP all-round performance setup.

TD05H-18G vs TD05H-20G

The next step in the range is the TD05H-20G.

Choose the TD05H-18G if:

• Your target is approximately 200–250HP
• You want the most balanced road-going setup
• Responsive spool remains an important priority
• The vehicle is used for daily driving, towing, touring or overlanding

Choose the TD05H-20G if:

• Your target is approximately 250–300HP
• You require additional top-end airflow
• The engine and fuel system are being built to support higher output

Supporting Modifications

A turbocharger should always be considered as part of a complete engine package.

Depending on the desired output, suitable supporting modifications may include:

• Correct injection-pump or ECU calibration
• Intercooler upgrade
• Free-flowing exhaust system
• Improved air intake
• Correct boost control
• Boost pressure gauge
• Exhaust gas temperature monitoring
• Fuel system upgrades where required
• Engine-condition checks before tuning

Professional tuning is strongly recommended after installing a performance turbocharger.

What’s Included

• 1 × Kinugawa TD05H-18G turbocharger
• 1 × Oil supply set
• 1 × Water coolant and return set
• 1 × Gasket set
• 1 × Kinugawa balance report with anti-counterfeit tag

Kinugawa confirms the complete kit contents above on the current product listing. :contentReference[oaicite:6]{index=6}

Installation Notes

• Toyota CT26-style 4-bolt turbine inlet
• Toyota CT26-style 4-bolt turbine outlet
• Internal wastegate
• Bolt-up fitment to compatible factory exhaust manifold and dump pipe
• 3-inch compressor inlet requires intake / air-filter pipe modification on applicable installations
• 1HD-FTE applications should use the appropriate compressor housing configuration
• Oil and coolant lines must be installed correctly
• Turbocharger must be primed with clean engine oil before initial start-up
• Check all intake and exhaust connections for leaks
• Verify boost pressure before operating under full engine load
• Fuel delivery and calibration must be matched to the turbocharger

Professional installation and tuning are strongly recommended.

Frequently Asked Questions

Q1: Which engines does the Kinugawa TD05H-18G fit?
A: Kinugawa lists the TD05H-18G for Toyota Land Cruiser 1HD-T, 1HD-FT and 1HD-FTE 4.2-litre turbo diesel applications.

Q2: How much power can the TD05H-18G support?
A: Kinugawa rates this diesel 18G configuration for approximately 200–250HP crank / flywheel power.

Q3: Does it fit the Toyota Land Cruiser 80?
A: Yes. Kinugawa specifically lists 1991–1997 HDJ80 / HDJ81 / HDJ82 models with the 1HD-T or 1HD-FT engine.

Q4: Does the TD05H-18G fit the 1HD-FTE?
A: Yes. Kinugawa includes 1HD-FTE compatibility. For 17201-17040 applications such as HDJ78, HDJ79, HDJ100 and HDJ105, the appropriate compressor housing configuration should be confirmed.

Q5: What size compressor wheel does it use?
A: The TD05H-18G uses a 50.3 / 68.0mm compressor wheel.

Q6: What size turbine wheel does it use?
A: The TD05H turbine wheel measures 49 / 57mm.

Q7: What compressor housing options are available?
A: Anti-Surge and Non Anti-Surge compressor housing options are available.

Q8: What compressor wheel options are available?
A: Cast 6+6, Billet 6+6 and Billet 11+0 configurations are available.

Q9: Which compressor wheel is focused on low-end torque?
A: Kinugawa identifies the Billet 6+6 option as the low-end torque configuration.

Q10: Which compressor wheel is focused on top-end performance?
A: Kinugawa identifies the Billet 11+0 configuration as the option aimed more towards top-end speed and airflow.

Q11: What turbine wheel options are available?
A: Available options are 12 Blades STD, 9 Blades STS and 10 Blades STS 55.

Q12: What size turbine housing does the TD05H-18G use?
A: It uses a 7cm / A/R .49 turbine housing.

Q13: What size is the compressor inlet?
A: The compressor housing uses a 3-inch inlet.

Q14: Does the intake require modification?
A: On applicable 1HD-T and 1HD-FT installations, the factory intake / air-filter pipe must be modified or replaced to suit the larger 3-inch compressor inlet.

Q15: Does the turbo bolt to the factory exhaust manifold?
A: Yes, on the stated compatible applications. The turbine housing uses the Toyota CT26-style 4-bolt inlet.

Q16: Does it use the original-style dump pipe connection?
A: Yes, on compatible applications. The turbine outlet also uses the Toyota CT26-style 4-bolt arrangement.

Q17: What is the standard actuator pressure?
A: The standard actuator is 1.0 bar / 14.7 PSI.

Q18: What alternative actuator pressures are available?
A: Kinugawa offers 0.3, 0.5, 0.8, 1.2, 1.5, 1.7 and 2.0 bar alternatives in addition to the default 1.0 bar configuration.

Q19: Is the turbo oil or water cooled?
A: Both. The TD05H-18G uses oil and water cooling.

Q20: What bearing system does it use?
A: It uses a journal bearing system with a 360-degree performance thrust bearing.

Q21: What comes with the turbo?
A: The kit includes the TD05H-18G turbocharger, oil supply set, water coolant and return set, gasket set and Kinugawa balance report with anti-counterfeit tag.

Q22: Is the TD05H-18G better than the TD05H-16G?
A: It depends on the target. The 16G is more focused on maximum response and up-to-200HP builds. The 18G provides greater airflow and approximately 200–250HP capability while retaining good spool characteristics.

Q23: Which turbo should I choose for 250–300HP?
A: The TD05H-20G is the next step in the range for approximately 250–300HP builds.

Q24: Do I need tuning after fitting the TD05H-18G?
A: Yes. Correct fuelling, boost control and calibration are essential. Professional tuning is strongly recommended.

Why Buy from OFM4x4.CO.UK

• Specialists in Toyota Land Cruiser performance upgrades
• Full six-model Kinugawa 1HD turbo range
• Options covering approximately 150HP through to 420HP builds
• Turbo options for 1HD-T, 1HD-FT and 1HD-FTE engines
• Choice of compressor housing configurations
• Choice of compressor wheel configurations
• Choice of turbine wheel configurations
• Multiple actuator spring pressures available
• Technical assistance when selecting the correct turbo for your power target
• Supporting Land Cruiser performance upgrades available
• UK-based customer service