Kinugawa TD04L-15G 6cm Turbo for Isuzu 4JG2 / 4JG2T / 4JH1 3.0–3.1 Diesel – 150–200HP / +40% Torque

The Kinugawa TD04L-15G 6cm Turbocharger is a responsive performance upgrade for compatible Isuzu 4JG2, 4JG2T and 4JH1 diesel engines, offering a useful increase in airflow and torque while retaining a compact TD04L turbine configuration.

Kinugawa rates the TD04L-15G at approximately 150–200HP crank horsepower for diesel applications. It uses a 43.4 / 56.0mm 15G compressor wheel, a 41.3 / 47.0mm TD04L turbine wheel and a compact 6cm / A/R .41 turbine housing.

Within the four-model Kinugawa Isuzu range, the 15G is identified as the +40% torque configuration. It provides more airflow and performance potential than the entry-level 13T while remaining more response-focused than the larger 15T and 19T options.

Power Capability: 150–200HP crank horsepower for diesel

Kinugawa Torque Rating: +40% torque configuration

Compressor: TD04L-15G Trim 60

Engine Compatibility: Isuzu 4JG2 / 4JG2T 3.1L and compatible 4JH1-TC 3.0L Diesel

Original Turbo Family: Compatible applications using IHI RHF4 / RHF4H / RHF5 / RHB5-style turbine connections.

Important: The 150–200HP figure represents turbocharger capability rather than guaranteed engine output. Actual power and torque depend on engine condition, fuelling, boost pressure, intercooling, exhaust flow and correct calibration.

Choose the Right Kinugawa Turbo for Your Isuzu

OFM4x4 offers four Kinugawa TD04L turbo options for Isuzu 4JG2, 4JG2T and compatible 4JH1 diesel engines. The range progresses from a response-focused mild upgrade through to the larger 19T high-output configuration.

The TD04L-15G is the balanced all-round option in this range. It offers greater airflow than the 13T without moving as far towards top-end performance and potential lag as the larger 15T and 19T configurations.

Why Choose the TD04L-15G?

The TD04L-15G is particularly suitable for road-driven and touring Isuzu diesels where the owner wants stronger performance without sacrificing too much low-RPM response.

• 150–200HP crank horsepower capability
• Kinugawa +40% torque configuration
• 43.4 / 56.0mm 15G compressor wheel
• 41.3 / 47.0mm TD04L turbine wheel
• 6cm / A/R .41 turbine housing
• 2.4-inch / 60mm compressor inlet
• 2-inch / 50mm compressor outlet
• RHF4H / RHF5-style turbine inlet
• RHF4H / RHF5 / RHB5 4-bolt turbine outlet
• Single-scroll turbine housing
• Internal wastegate
• Journal-bearing construction
• Oil and water cooled
• Anti-Surge or Non Anti-Surge compressor housing
• Cast 6+6 or Billet 6+6 compressor wheel
• STD or STS turbine wheel options
• Multiple actuator pressures available

Vehicle & Engine Compatibility

Kinugawa lists the TD04L-15G for compatible vehicles powered by Isuzu 4JG2 / 4JG2T 3.1L and 4JH1-TC 3.0L diesel engines. :contentReference[oaicite:1]{index=1}

Kinugawa also states that the turbine housing can replace compatible applications using a standard 4-bolt RHF4H, RHF5 or RHB5 turbine outlet flange. :contentReference[oaicite:2]{index=2}

Because multiple IHI turbo variants were used on these engines, the turbine inlet and outlet flange specifications should always be confirmed before ordering.

4JH1-TC 3.0L Applications

Kinugawa specifically lists the Isuzu 4JH1-TC 3.0L diesel with IHI RHF5 VIEK / VA430093 and OE turbo reference 8973544234, including compatible Isuzu D-Max, Holden Rodeo and Rodeo Pickup applications. :contentReference[oaicite:3]{index=3}

This allows the TD04L-15G to cover both the familiar 3.1-litre Trooper / Bighorn platform and selected later 3.0-litre Isuzu applications where the correct RHF5-style flange configuration is present.

OE & Turbo Reference Numbers

Compatible OE references listed by Kinugawa include:

• 8971480760
• 8971480761
• 860010
• 860015
• 97086343
• 5T-614
• E180027
• VA180027
• VD180027
• 8970385181
• 8-9703-85180
• 8-9703-85181
• 8973544234 – applicable 4JH1-TC installation

Turbo references listed include:

• VA430023 VICC
• VB430023 VI95
• VC430023 VIAN
• VD430023
• VE430023
• VA430093 / VIEK – applicable 4JH1-TC installation

Please compare the flange arrangement of the existing turbocharger before ordering. :contentReference[oaicite:4]{index=4}

Technical Specifications

Available Configuration Options

The TD04L-15G can be configured through its compressor housing, compressor wheel, turbine wheel and actuator pressure. However, its compressor wheel menu differs from the 15T and 19T.

Compressor Housing Options

• Non Anti-Surge
• Anti-Surge

The compressor housing uses a 2.4-inch / 60mm inlet and 2-inch / 50mm outlet.

The Anti-Surge version uses a ported inlet arrangement, while the Non Anti-Surge option uses a conventional compressor cover.

Compressor Wheel Options

• Cast 6+6
• Billet 6+6

The current Kinugawa TD04L-15G product configurator does not show a Billet 11+0 option for this model. :contentReference[oaicite:5]{index=5}

Both available configurations use the 43.4 / 56.0mm 15G compressor dimensions.

Kinugawa describes the 6+6 blade arrangement as particularly well suited to low-end torque, which matches the TD04L-15G's role as the responsive all-round option in the four-turbo range. :contentReference[oaicite:6]{index=6}

Turbine Wheel Options

• 12 Blades STD
• 9 Blades STS

Both versions use the 41.3 / 47.0mm TD04L turbine wheel.

Turbine-wheel design affects rotating inertia, exhaust flow, response and high-RPM performance.

Spring / Actuator Pressure Options

The standard actuator setting is:

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: Actuator pressure must be selected according to the desired boost level, engine specification and boost-control strategy. A stronger actuator spring alone does not create safe additional engine power.

Cooling Type

Oil & Water Cooled

The turbocharger centre housing uses engine oil for bearing lubrication together with engine coolant for additional thermal management.

43.4 / 56mm TD04L-15G Compressor

The TD04L-15G uses a 43.4mm inducer / 56.0mm exducer compressor.

This places it between the smaller 13T and larger 15T / 19T configurations, giving it a strong balance between airflow capability and response.

For many road-driven Isuzu 3.0L and 3.1L diesels, this makes the 15G an attractive choice for:

• Daily driving
• Touring
• Overlanding
• Towing
• Moderate performance upgrades
• Vehicles fitted with larger tyres
• Vehicles carrying additional accessories and load

6cm / A/R .41 Turbine Housing

The TD04L-15G retains a compact 6cm / A/R .41 single-scroll turbine housing.

The relatively small nozzle area helps maintain exhaust-gas velocity and responsive boost behaviour on the 3.0L and 3.1L Isuzu diesel engines.

Kinugawa states that the larger replacement turbo can have slightly more lag than the factory turbo, but in return produces stronger performance towards the upper end of the rev range. :contentReference[oaicite:7]{index=7}

Factory Manifold & Downpipe Fitment

Kinugawa states that the TD04L-15G is designed to bolt to the compatible factory manifold and downpipe. :contentReference[oaicite:8]{index=8}

The turbine side uses:

• Standard RHF4H / RHF5 turbine inlet
• Standard RHF4H / RHF5 / RHB5 4-bolt turbine outlet
• 6cm / A/R .41 single-scroll housing
• Internal wastegate

Because several IHI turbocharger flange configurations exist, the inlet and outlet specifications should be checked before ordering.

Larger Compressor Inlet & Outlet

The compressor cover is larger than the standard turbo on many applications.

• Compressor Inlet: 2.4 inch / 60mm
• Compressor Outlet: 2 inch / 50mm

Kinugawa states there is sufficient engine-bay room for the larger compressor cover and that aftermarket silicone reducers or adapters can be used to connect the intake and intercooler system. :contentReference[oaicite:9]{index=9}

Journal Bearing Construction

The TD04L-15G uses a journal-bearing centre section.

Correct oil pressure, clean oil and unrestricted oil return are essential for reliable turbocharger operation.

Oil & Water Cooling

The turbocharger uses both engine oil and coolant.

The supplied installation hardware includes oil-feed, oil-return and water feed / return components.

If the previous turbocharger has failed, the oil and cooling circuits should be inspected carefully for contamination or restrictions before installing the new unit.

150–200HP Performance Capability

Kinugawa rates the TD04L-15G at approximately 150–200HP crank horsepower for diesel applications. :contentReference[oaicite:10]{index=10}

This is the turbocharger's potential airflow capability and should not be interpreted as guaranteed vehicle output.

Actual performance depends on:

• Engine condition
• Fuel-system capability
• Fuel calibration
• Boost pressure
• Intercooler efficiency
• Air-intake restriction
• Exhaust flow
• Exhaust gas temperature
• Engine cooling
• Supporting modifications

TD04L-13T vs TD04L-15G vs TD04L-15T

Choose the TD04L-13T if quick response and a mild upgrade are the main priorities.

Choose the TD04L-15G if you want approximately 150–200HP capability with a strong focus on usable road, touring and towing performance.

Choose the TD04L-15T if additional airflow and approximately 150–220HP potential are required.

TD04L-15G vs TD04L-19T

The TD04L-19T is the highest-output option in the range at approximately 200–250HP / +60% torque.

Choose the TD04L-15G if:

• You want strong everyday response
• Your target is approximately 150–200HP
• The vehicle is used for road driving, touring or towing
• You prefer a more balanced performance setup

Choose the TD04L-19T if:

• Your target is approximately 200–250HP
• Maximum compressor airflow is more important
• The vehicle has the necessary fuel, intercooler and exhaust upgrades

Complete Kinugawa Isuzu Turbo Range

• TD04L-13T – 130–180HP / +30% Torque – fast response and mild performance upgrade
• TD04L-15G – 150–200HP / +40% Torque – responsive all-round road and touring upgrade
• TD04L-15T – 150–220HP / +45% Torque – stronger performance with good response
• TD04L-19T – 200–250HP / +60% Torque – maximum airflow and performance

Supporting Modifications

The TD04L-15G can be used on relatively mild builds, but higher output still requires the engine and supporting systems to be correctly matched.

Depending on the performance target, useful supporting modifications may include:

• Correct fuel-system calibration
• Fuel-system upgrades where required
• Upgraded intercooler
• Free-flowing exhaust system
• Improved air intake
• Appropriate boost control
• Boost-pressure monitoring
• Exhaust-gas-temperature monitoring
• Cooling-system inspection
• Engine-condition checks before tuning

Professional installation and tuning are recommended for performance applications.

What’s Included

• 1 × Kinugawa TD04L-15G turbocharger with actuator
• 1 × Oil feed line kit
• 1 × Water feed and return line kit
• 1 × Oil return flange kit
• 1 × 45cm NBR oil return hose
• 2 × Circlips
• 1 × Turbine inlet and outlet gasket set
• 8 × Studs and nuts
• 1 × Kinugawa balance report with anti-counterfeit tag

Kinugawa lists the above components with the current TD04L-15G package. :contentReference[oaicite:11]{index=11}

Manufacturing & Warranty

The Kinugawa TD04L-15G is supplied brand new and includes an individual balance report with anti-counterfeit identification. Kinugawa currently states a 1-year trouble-free warranty for the original purchaser, subject to the manufacturer's warranty conditions. :contentReference[oaicite:12]{index=12}

Installation Notes

• Designed for compatible factory manifold and downpipe fitment
• Standard RHF4H / RHF5 turbine inlet
• Standard RHF4H / RHF5 / RHB5 4-bolt turbine outlet
• 6cm / A/R .41 single-scroll turbine housing
• Internal wastegate
• 60mm compressor inlet
• 50mm compressor outlet
• Silicone reducers or adapter hoses may be required
• Confirm turbine flange dimensions before ordering
• Ensure correct oil feed and unrestricted oil return
• Connect coolant feed and return correctly
• Prime the turbocharger with clean engine oil before first start
• Check intake, boost and exhaust systems for leaks
• Verify boost pressure before full-load operation
• Ensure fuelling and boost are matched correctly

Frequently Asked Questions

Q1: Which engines does the Kinugawa TD04L-15G fit?
A: Kinugawa lists the turbo for compatible Isuzu 4JG2 / 4JG2T 3.1-litre and 4JH1-TC 3.0-litre diesel applications.

Q2: Does it fit the Isuzu Trooper 3.1?
A: Yes. Kinugawa specifically lists the Isuzu Trooper 3.1L 4JG2T.

Q3: Does it fit the Isuzu Bighorn?
A: Yes. The Isuzu Bighorn 3.1L 4JG2T is specifically listed.

Q4: Does it fit the Opel Monterey 3.1?
A: Yes. Kinugawa lists the Opel Monterey 3.1L 4JG2T application.

Q5: Does it fit the Holden Jackaroo?
A: Yes. Compatible Holden Jackaroo 3.1L 4JG2T applications are listed.

Q6: Does it fit the Isuzu D-Max 3.0 4JH1?
A: Kinugawa lists compatible Isuzu D-Max 4JH1-TC 3.0L applications using the applicable IHI RHF5 turbo configuration. Flange compatibility should be confirmed before ordering.

Q7: How much power can the TD04L-15G support?
A: Kinugawa rates the TD04L-15G at approximately 150–200HP crank horsepower for diesel applications.

Q8: What does the +40% torque rating mean?
A: Kinugawa identifies the TD04L-15G as its +40% torque configuration. Actual torque increase depends on engine condition, fuelling, boost, supporting modifications and tuning.

Q9: What size compressor wheel does it use?
A: The TD04L-15G uses a 43.4 / 56.0mm compressor wheel.

Q10: What compressor housing options are available?
A: Non Anti-Surge and Anti-Surge compressor housing configurations are available.

Q11: What compressor wheel options are available?
A: The current product configurator offers Cast 6+6 and Billet 6+6 compressor wheel options.

Q12: Is a Billet 11+0 compressor available on the TD04L-15G?
A: The current Kinugawa TD04L-15G configurator does not show a Billet 11+0 option. The available choices are Cast 6+6 and Billet 6+6.

Q13: Which compressor configuration is suited to low-end torque?
A: Kinugawa identifies the 6+6 blade arrangement as particularly suitable for low-end torque.

Q14: What turbine wheel does it use?
A: The turbine wheel measures approximately 41.3 / 47.0mm.

Q15: What turbine wheel options are available?
A: Kinugawa offers 12-Blade STD and 9-Blade STS configurations.

Q16: What turbine housing does it use?
A: It uses a 6cm / A/R .41 single-scroll turbine housing.

Q17: Does it bolt to the factory manifold and downpipe?
A: Kinugawa states that it bolts to compatible factory manifold and downpipe arrangements. Flange specifications should still be checked before ordering.

Q18: Will the intake or intercooler hoses need adapting?
A: They may. The compressor housing uses a 60mm inlet and 50mm outlet, which are larger than the stock connections on many applications. Suitable silicone reducers or adapters can be used.

Q19: Does the TD04L-15G have more lag than the factory turbo?
A: Kinugawa states that the larger turbo may have slightly more lag than the original turbo while providing stronger power towards the upper part of the RPM range.

Q20: What bearing system does it use?
A: It uses a journal-bearing centre section.

Q21: Is the TD04L-15G oil and water cooled?
A: Yes. The turbo uses both engine-oil lubrication and water cooling.

Q22: What is the standard actuator pressure?
A: The standard actuator is 1.0 bar / 14.7 PSI.

Q23: Can I select another actuator pressure?
A: Yes. Kinugawa lists 0.3, 0.5, 0.8, 1.2, 1.5, 1.7 and 2.0 bar alternatives in addition to the standard 1.0 bar actuator.

Q24: Should I choose the TD04L-13T or TD04L-15G?
A: Choose the 13T where fastest response and a mild upgrade are the priorities. Choose the 15G where approximately 150–200HP capability and stronger all-round road, touring and towing performance are desired.

Q25: Should I choose the TD04L-15G or TD04L-15T?
A: The 15G is the more response-focused 150–200HP option, while the 15T extends the performance capability to approximately 150–220HP.

Q26: What is included with the TD04L-15G?
A: The kit includes the turbocharger with actuator, oil feed line kit, water feed and return line kit, oil return flange kit, 45cm NBR oil return hose, two circlips, turbine inlet and outlet gasket set, eight studs and nuts and a Kinugawa balance report with anti-counterfeit tag.

Why Buy from OFM4x4.CO.UK

• Complete Kinugawa Isuzu 4JG2 / 4JH1 turbo range
• Four turbo sizes covering mild upgrades through to 250HP performance builds
• Turbo options for Isuzu Trooper, Bighorn, D-Max and compatible applications
• Anti-Surge and Non Anti-Surge housing options
• Cast and billet compressor options
• STD and STS turbine configurations
• Multiple actuator pressures available
• Technical assistance when choosing the correct turbo configuration
• Supporting 4x4 performance upgrades available
• UK-based customer service