Upgrading the turbo on a diesel truck can unlock significant gains in power, towing capacity, and fuel efficiency. But with dozens of options on the market, choosing the right one requires careful research. We evaluated each turbo using manufacturer specifications, published industry standards, and aggregated owner feedback from real-world use. This guide compares seven top-rated models to help you make an informed decision.
| Photo | Product | Score | Buy |
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Garrett PowerMax Stage 2 Turbocharger Best Overall 62mm compressor wheel, billet wheel, ball bearing center housing |
9.2 | 🛒 Check Price |
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BorgWarner S300SX 62mm Turbocharger Best Value 62mm compressor, 68mm turbine, journal bearing, T4 flange |
8.9 | 🛒 Check Price |
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Precision Turbo 5431 Gen2 66mm Turbo High Performance 66mm billet wheel, ball bearing, T6 turbine housing |
8.7 | 🛒 Check Price |
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Holset HE351VE Variable Geometry Turbo Best for Towing Variable geometry turbine, 60mm compressor, electronic actuator |
8.4 | 🛒 Check Price |
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Mamba 62mm Turbocharger (Journal Bearing) Budget Pick 62mm compressor, T3/T4 hybrid, journal bearing, oil cooled |
7.8 | 🛒 Check Price |
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ATS Aurora 3000 Twin Turbo Kit Twin Turbo Option Two turbos: small for spool, large for top end; 5.9L Cummins specific |
8.1 | 🛒 Check Price |
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Mitsubishi TD04HL-19T Turbocharger Stock Replacement 19T compressor, 6cm2 turbine housing, direct OEM replacement |
7.3 | 🛒 Check Price |
1. Garrett PowerMax Stage 2 Turbocharger: Best Overall
In our evaluation, the Garrett PowerMax Stage 2 stands out for its blend of performance and durability. Based on owner feedback and the spec sheets, the ball bearing center housing significantly reduces turbo lag compared to journal bearing designs. The billet compressor wheel flows more air at lower boost pressures, improving efficiency. Many users report gains of 50-80 horsepower with supporting mods.
However, this turbo is not a simple bolt-on; it requires custom tuning and supporting fuel system upgrades to reach its full potential. The price is higher than some competitors, making it less ideal for those on a tight budget or with stock engines. Skip this if you are not prepared for a comprehensive upgrade package.
- Ball bearing center housing reduces lag and improves throttle response
- Billet compressor wheel for higher flow and efficiency
- Direct fit for many Ford Power Stroke and Dodge Cummins applications
Pros: Excellent build quality and reliability; Noticeable power gains with proper tuning
Cons: Premium pricing may not suit budget-conscious buyers
2. BorgWarner S300SX 62mm Turbocharger: Best Value
We compared the BorgWarner S300SX against pricier options and found it delivers exceptional performance per dollar. Owner feedback highlights its durability in high-mileage trucks, with many reporting over 100,000 miles without issues. The journal bearing is less efficient than ball bearings but is strong and serviceable.
That said, the S300SX does exhibit more turbo lag, especially on smaller displacement engines. It is best suited for trucks used for towing or daily driving where instant response is less critical. Skip this if you prioritize quick spool-up for street performance or racing.
- Journal bearing design proven in heavy-duty applications
- Wide compressor map for broad power band
- Affordable alternative to ball bearing turbos
Pros: Great value for the performance; Reliable and easy to rebuild
Cons: More lag than ball bearing designs
3. Precision Turbo 5431 Gen2 66mm Turbo: High Performance
Based on manufacturer specs and owner reports, the Precision Turbo 5431 Gen2 is a top choice for those chasing big power. The 66mm billet wheel moves massive air, and the ball bearing design keeps lag manageable. In our evaluation, it shines on modified trucks with upgraded injectors and fuel systems.
However, this turbo is overkill for a stock or mildly tuned truck. It demands a built transmission, upgraded intercooler, and professional tuning. The price is also steep. Skip this if you are not building a high-horsepower competition or sled-pulling truck.
- Billet compressor wheel for high flow and quick spool
- Ball bearing cartridge for reduced friction
- Designed for high horsepower builds (600+ hp)
Pros: Excellent for high-performance builds; Quick spool despite large wheel
Cons: Requires extensive supporting mods and tuning
4. Holset HE351VE Variable Geometry Turbo: Best for Towing
We researched the Holset HE351VE because of its popularity in towing applications. Owner feedback confirms that the variable geometry turbine provides strong boost from low RPM, making it ideal for heavy hauling. The electronic actuator allows the ECM to control boost precisely, improving driveability.
However, the actuator is a known weak point; failures can leave the truck in limp mode. It also requires a wiring harness and tuning integration. Skip this if you prefer a simpler mechanical turbo or own an older truck without electronic compatibility.
- Variable geometry reduces lag and improves spool
- Electronic actuator for precise boost control
- Common OEM upgrade on Dodge/Cummins trucks
Pros: Excellent low-end torque for towing; Improves fuel economy under load
Cons: Complex electronic actuator can fail
5. Mamba 62mm Turbocharger (Journal Bearing): Budget Pick
In our evaluation, the Mamba 62mm offers the lowest price point for diesel truck owners wanting a turbo upgrade. Based on owner feedback, it can provide a noticeable power increase on stock or mildly modified engines. The T3/T4 hybrid design makes it a common choice for budget builds.
However, durability is a concern. Several owners report premature bearing failure or shaft play after only a few thousand miles. Quality control varies between units. Skip this if you need a turbo for daily driving or towing where reliability is paramount. It is best for low-budget projects or off-road use.
- Low cost entry into turbo upgrades
- T3/T4 hybrid design fits many applications
- Oil cooled center section
Pros: Very affordable; Simple installation with basic tools
Cons: Inconsistent quality control; Shorter lifespan than premium brands
6. ATS Aurora 3000 Twin Turbo Kit: Twin Turbo Option
We researched the ATS Aurora 3000 kit for those seeking extreme power. Based on manufacturer specs and owner feedback, the twin turbo setup provides excellent low-end response and top-end flow. It is a complete system with intercooler piping, but installation is involved.
However, this kit costs significantly more than a single turbo and requires extensive modifications, including a built engine and transmission. The complexity can lead to installation headaches. Skip this if you are not experienced with custom fabrication or have a limited budget. It is only for serious enthusiasts.
- Sequential twin turbo design for broad power
- Includes all necessary piping and hardware
- Designed for 5.9L Cummins engines
Pros: Massive power potential (700+ hp); Smooth power delivery
Cons: Very expensive and complex installation; Not a direct bolt-on; requires fabrication
7. Mitsubishi TD04HL-19T Turbocharger: Stock Replacement
In our evaluation, the Mitsubishi TD04HL-19T is an excellent stock replacement for trucks like the Isuzu NPR or Mitsubishi Fuso. Owner feedback indicates it restores lost power and can provide a small increase. The direct fit means no adapter plates or tuning.
However, the power gains are minimal compared to larger turbos. It is not designed for high boost or high horsepower. Skip this if you are looking for a significant performance upgrade. It is best for maintaining a stock truck or replacing a failed turbo.
- Direct replacement for many 4-cylinder diesel trucks
- Bolt-on installation with no modifications
- Improved flow over stock TD04
Pros: Simple swap, no tuning required; Reliable OEM-style construction
Cons: Modest power gains (10-20 hp); Not suitable for high-performance builds
Frequently Asked Questions
What size turbo is best for my diesel truck?
The best size depends on your engine displacement, horsepower goals, and use case. For mild upgrades (50-100 hp), a 62-66mm compressor wheel is common. For towing, a smaller turbo with quick spool is better. For high performance (400+ hp), larger turbos like 66-72mm are used. Always match the turbo to your fuel system and tuning capability.
Do I need to tune my truck after installing a turbo?
Yes, almost always. A larger turbo moves more air, and the engine’s stock fuel map will not adjust properly. Without tuning, you risk excessive smoke, high exhaust temperatures, and potential engine damage. Professional tuning is recommended to optimize air-fuel ratios and boost levels.
What is the difference between journal bearing and ball bearing turbos?
Journal bearings use a thin oil film for lubrication and are more durable and cheaper, but they have more friction and lag. Ball bearings use rolling elements, reducing friction for quicker spool and better response, but they are more expensive and can be less tolerant to oil contamination. For daily driving, ball bearings are often preferred.
Can I install a turbo myself?
If you have mechanical experience and the right tools, a direct-fit turbo can be installed in a weekend. However, you will need to deal with oil and coolant lines, exhaust piping, and possibly intercooler upgrades. For twin turbo kits or custom setups, professional installation is strongly recommended.
How do I know if my turbo is failing?
Common signs include excessive oil consumption, blue or black smoke from the exhaust, whistling or grinding noises, loss of power, and high exhaust gas temperatures. Check for shaft play by removing the intake pipe and wiggling the compressor wheel. If there is excessive play, the turbo should be replaced.
Our Verdict
After researching and comparing specs, owner feedback, and industry standards, the Garrett PowerMax Stage 2 is our top pick for its outstanding balance of performance and reliability. For budget-conscious buyers, the BorgWarner S300SX offers excellent value. Choose based on your specific horsepower goals and budget.
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