Kinugawa TD04L-19T 6cm Turbo for Isuzu 4JG2 / 4JG2T / 4JH1 3.0–3.1 Diesel – 200–250HP / +60% Torque

The Kinugawa TD04L-19T 6cm Turbocharger is the highest-output option in the OFM4x4 Kinugawa turbo range for Isuzu 4JG2, 4JG2T and 4JH1 diesel engines, offering substantially greater airflow than the smaller 13T, 15G and 15T configurations.

Rated by Kinugawa at approximately 200–250HP crank horsepower for diesel applications, the TD04L-19T uses a 46.0 / 58mm 19T compressor wheel together with a 41.3 / 47.0mm TD04L turbine and compact 6cm / A/R .41 turbine housing.

Kinugawa identifies this version as its +60% torque configuration within the Isuzu range. It is particularly suited to modified 3.0L and 3.1L diesel builds where stronger mid-range and top-end performance are required than the smaller turbo options can provide.

Power Capability: 200–250HP crank horsepower for diesel

Kinugawa Torque Rating: +60% torque configuration

Compressor: TD04L-19T Trim 63

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

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

Important: The 200–250HP figure represents turbocharger capability rather than guaranteed engine output. Actual performance depends on engine condition, fuel delivery, boost pressure, intercooling, intake and exhaust flow and correct calibration.

Choose the Right Kinugawa Turbo for Your Isuzu

OFM4x4 offers four Kinugawa TD04L turbo configurations for Isuzu 4JG2, 4JG2T and compatible 4JH1 applications. Each version provides a different balance between response, torque delivery and maximum airflow.

The TD04L-19T is the largest and highest-output option in this four-turbo range. It is best suited to engines with the fuelling, intercooling, exhaust flow and tuning required to take advantage of the larger compressor.

Why Choose the TD04L-19T?

The TD04L-19T provides considerably greater compressor capacity than the smaller Kinugawa Isuzu turbo options while retaining a compact TD04L turbine and 6cm housing.

This configuration makes it particularly attractive for customers who want substantially increased performance without converting the engine to an entirely unrelated turbo mounting system.

• 200–250HP potential crank horsepower
• Kinugawa +60% torque configuration
• 46.0 / 58mm 19T 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
• Internal wastegate
• Journal-bearing construction
• Oil and water cooled
• Anti-Surge or Non Anti-Surge housing options
• Three compressor wheel configurations
• STD or STS turbine wheel options
• Multiple actuator pressures available

Vehicle & Engine Compatibility

Kinugawa lists this TD04L-19T for a wide range of vehicles using compatible Isuzu 4JG2 / 4JG2T and 4JH1 diesel engines.

The manufacturer also states that the turbine housing can replace applications using compatible standard 4-bolt RHF4H, RHF5 and RHB5 turbine outlet configurations.

Fitment must be checked by flange specification rather than engine name alone where the vehicle has previously been modified or where several turbo variants were used during production.

4JH1-TC 3.0L Application

Kinugawa specifically lists the Isuzu 4JH1-TC 3.0L diesel using IHI RHF5 VIEK / VA430093 and OE reference 8973544234, including applicable D-Max and Holden Rodeo applications.

This extends the turbo beyond the familiar 3.1-litre Trooper / Bighorn application and makes it suitable for selected later 3.0-litre Isuzu platforms where the correct turbine flange configuration is present.

OE & Turbo Reference Numbers

Kinugawa lists the following references amongst the compatible applications:

• 8971480760
• 8971480761
• 860010
• 860015
• 97086343
• 5T-614
• E180027
• VA180027
• VD180027
• 8970385181
• 8-9703-85180
• 8-9703-85181
• 8973544234

Turbocharger references listed include:

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

Please compare the inlet and outlet flange arrangement with the existing turbo before ordering.

Technical Specifications

Available Configuration Options

The TD04L-19T can be configured through the compressor housing, compressor wheel, turbine wheel and actuator pressure, allowing the turbocharger to be tailored towards different response and power characteristics.

Compressor Housing Options

• Non Anti-Surge
• Anti-Surge

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

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

Compressor Wheel Options

• Cast 6+6
• Billet 6+6 – recommended where low-end torque is the priority
• Billet 11+0 – recommended where top-end speed and airflow are the priority

All configurations use the TD04L-19T's 46.0 / 58mm compressor dimensions.

Kinugawa specifically identifies the 6+6 blade configuration as the option better suited to low-end torque, while the 11+0 configuration is aimed towards stronger top-end speed.

Turbine Wheel Options

• 12 Blades STD
• 9 Blades STS

The TD04L turbine wheel measures 41.3 / 47.0mm.

Turbine wheel design affects rotating inertia, spool characteristics, exhaust flow and high-RPM efficiency.

Spring / Actuator Pressure Options

The standard Kinugawa actuator setting is:

1.0 bar / 14.7 PSI – Default

Alternative actuator pressures available include:

• 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 should be matched to the engine setup, desired boost pressure and boost-control strategy. Installing a stronger actuator spring does not automatically produce safe additional power.

Cooling Type

Oil & Water Cooled

The TD04L-19T centre housing uses engine oil for journal-bearing lubrication together with coolant circulation for additional thermal management.

46.0 / 58mm TD04L-19T Compressor

The 19T uses the largest compressor in this four-model Kinugawa Isuzu range.

The 46.0mm inducer / 58mm exducer compressor provides the airflow required for the manufacturer's stated 200–250HP diesel capability.

The increased compressor capacity also explains why this version is more focused towards higher-output engine builds than the smaller 13T, 15G and 15T options.

6cm / A/R .41 Turbine Housing

The TD04L-19T uses a compact 6cm / A/R .41 turbine housing.

A compact turbine housing helps maintain exhaust-gas velocity and responsive turbine behaviour, which is particularly important on a relatively low-revving 3.0L or 3.1L diesel engine.

The 19T compressor is substantially larger than the original turbo compressor, so Kinugawa notes that the turbo may have slightly more lag than the factory unit while producing substantially stronger performance towards the upper part of the engine's usable RPM range.

Factory Manifold & Downpipe Fitment

Kinugawa states that the TD04L-19T is designed to bolt to the compatible factory manifold and downpipe.

The turbine side uses:

• Standard RHF4H / RHF5-style turbine inlet
• Standard RHF4H / RHF5 / RHB5 4-bolt turbine outlet
• Single-scroll turbine housing
• Internal wastegate

Because multiple IHI turbo variants were used across Isuzu and related applications, the inlet and outlet flange specification must be checked before ordering.

Larger Compressor Inlet & Outlet

The TD04L-19T uses a larger compressor cover than the original factory turbocharger on many applications.

Kinugawa specifies:

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

The manufacturer states that there is sufficient engine-bay space on the intended applications and that aftermarket silicone hoses can be used to adapt the compressor inlet and intercooler connections to the required diameter.

Journal Bearing Construction

The TD04L-19T uses a proven journal-bearing centre section.

Correct engine-oil supply and unrestricted oil return are essential for reliable turbocharger operation. The supplied oil feed and return components help support the installation.

Oil & Water Cooling

The turbocharger uses both oil lubrication and water cooling.

The kit includes the appropriate oil feed components together with a water feed and return line kit.

When replacing a previously failed turbocharger, all oil and coolant lines should be inspected for contamination, restriction or damage before the new turbo is fitted.

200–250HP Performance Capability

Kinugawa rates the TD04L-19T at approximately 200–250HP crank horsepower for diesel applications.

This represents the turbocharger's potential airflow capability rather than a guaranteed engine-output figure.

Actual performance will depend on:

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

TD04L-19T vs TD04L-15T

Choose the TD04L-15T if you want a strong performance upgrade while retaining a greater emphasis on response.

Choose the TD04L-19T if the engine is being built towards approximately 200–250HP and maximum airflow within this four-turbo range is the priority.

Complete Kinugawa Isuzu Turbo Range

If the TD04L-19T is larger than required for your intended build, the following Kinugawa options are also available:

• TD04L-13T – 130–180HP / +30% Torque – responsive mild upgrade
• TD04L-15G – 150–200HP / +40% Torque – balanced road and touring upgrade
• TD04L-15T – 150–220HP / +45% Torque – stronger performance with good response
• TD04L-19T – 200–250HP / +60% Torque – highest-output option

Supporting Modifications

The TD04L-19T should be considered as part of a complete performance package rather than a standalone horsepower upgrade.

Depending on the intended output, 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 assessment
• Engine-condition checks before tuning

Professional installation and tuning are strongly recommended for performance applications.

What’s Included

• 1 × Kinugawa TD04L-19T 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

Manufacturing & Balancing

The TD04L-19T is supplied brand new by Kinugawa Turbo Systems.

A Kinugawa balance report with anti-counterfeit identification is supplied with the turbocharger.

Installation Notes

• Designed to bolt to the compatible factory manifold and downpipe
• Standard RHF4H / RHF5-style turbine inlet
• Standard RHF4H / RHF5 / RHB5 4-bolt turbine outlet
• Single-scroll turbine housing
• Internal wastegate
• 2.4-inch / 60mm compressor inlet
• 2-inch / 50mm compressor outlet
• Compressor connections are larger than stock on many applications
• Silicone reducer / adapter hoses may be required
• Confirm turbine inlet and outlet flange dimensions before ordering
• Oil feed and oil return must be installed correctly
• Coolant feed and return lines must be connected correctly
• Turbocharger must be primed with clean engine oil before first start-up
• Check intake and exhaust systems for leaks after installation
• Verify boost pressure before full-load operation
• Fuelling must be matched to the turbo and intended boost pressure

Frequently Asked Questions

Q1: Which engines does the Kinugawa TD04L-19T 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 application.

Q3: Does it fit the Isuzu Bighorn?
A: Yes. The 3.1L 4JG2T Isuzu Bighorn 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 3.1L 4JG2T Holden Jackaroo applications are listed.

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

Q7: How much power can the TD04L-19T support?
A: Kinugawa rates the TD04L-19T at approximately 200–250HP crank horsepower for diesel applications.

Q8: What does +60% torque mean?
A: Kinugawa identifies the TD04L-19T as its +60% torque configuration within this Isuzu performance turbo range. Actual vehicle torque increase depends on fuelling, boost, engine condition and calibration.

Q9: What size compressor wheel does it use?
A: The TD04L-19T uses a 46.0 / 58mm compressor wheel.

Q10: What compressor wheel options are available?
A: Cast 6+6, Billet 6+6 and Billet 11+0 configurations are available.

Q11: Which compressor wheel is recommended for low-end torque?
A: Kinugawa identifies the 6+6 blade configuration as better suited to low-end torque.

Q12: Which compressor wheel is recommended for top-end performance?
A: Kinugawa identifies the Billet 11+0 configuration as the option focused towards top-end speed.

Q13: What compressor housing options are available?
A: Anti-Surge and Non Anti-Surge compressor housing configurations are available.

Q14: What size is the compressor inlet?
A: The compressor inlet measures 2.4 inches / 60mm.

Q15: What size is the compressor outlet?
A: The compressor outlet measures 2 inches / 50mm.

Q16: What size turbine wheel does it use?
A: The TD04L turbine wheel measures approximately 41.3 / 47.0mm.

Q17: What turbine wheel options are available?
A: Kinugawa offers 12-Blade STD and 9-Blade STS turbine wheel configurations.

Q18: What turbine housing does it use?
A: It uses a 6cm / A/R .41 single-scroll turbine housing.

Q19: Does it bolt to the original manifold?
A: Kinugawa states that the turbo bolts to the compatible factory manifold and downpipe. Because several flange configurations exist, the inlet and outlet specifications must still be confirmed before ordering.

Q20: Will the intake pipe need modification?
A: The compressor inlet and outlet are larger than the stock turbo on many applications. Kinugawa states that aftermarket silicone reducer or adapter hoses can be used to connect the intake and intercooler system.

Q21: Will the TD04L-19T spool slower than the factory turbo?
A: Kinugawa states that the larger 19T may have slightly more lag than the factory turbo while providing stronger power towards the upper part of the rev range.

Q22: Is the turbo internally or externally wastegated?
A: It uses an internal wastegate.

Q23: What bearing type does the TD04L-19T use?
A: It uses a journal-bearing centre section.

Q24: Is the turbo oil or water cooled?
A: Both. The TD04L-19T uses an oil and water cooling system.

Q25: What actuator pressure is standard?
A: The standard actuator pressure is 1.0 bar / 14.7 PSI.

Q26: Are alternative actuator pressures available?
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.

Q27: What is included with the TD04L-19T?
A: The kit includes the turbocharger with actuator, oil feed kit, water feed and return kit, oil return flange, NBR return hose, circlips, turbine inlet and outlet gaskets, studs and nuts and a Kinugawa balance report with anti-counterfeit tag.

Q28: Which Kinugawa turbo should I choose if I want quicker response?
A: Consider the smaller TD04L-13T, TD04L-15G or TD04L-15T, depending on your required power range.

Why Buy from OFM4x4.CO.UK

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