Do you want your 6.7 Cummins to perform like a champion? Imagine your truck pulling heavy loads with ease, or accelerating with a powerful surge. That’s the dream, but sometimes, the stock turbo just doesn’t cut it. Choosing the right Variable Geometry Turbo (VGT) can feel like navigating a maze. There are so many brands, so many specs, and you don’t want to waste your hard-earned money on something that won’t make a difference, or worse, causes problems.
This is where we come in. We understand the frustration of sifting through endless reviews and technical jargon. We’re here to cut through the noise and give you the clear, simple advice you need. By reading on, you’ll learn what makes a VGT turbo great for your 6.7 Cummins, what to look for, and how to avoid common mistakes. We’ll help you understand the benefits and what to expect so you can make a smart choice for your truck.
So, get ready to unlock your Cummins’ full potential. We’re about to dive deep into the world of VGT turbos, making the selection process easy and straightforward. Let’s get your truck running better than ever!
Our Top 5 Vgt Turbo For 6.7 Cummins Recommendations at a Glance
Top 5 Vgt Turbo For 6.7 Cummins Detailed Reviews
1. 5494878RX 6.7 Cummins Turbo Actuator Compatible with Dodge Ram 2500 3500 4500 5500 2013-2018 VGT Turbo Holset HE300VG HE351VE Replaces Turbocharger Actuator 68481772AA W/Calibrate Kit (2013-2018)
Rating: 9.0/10
Is your Dodge Ram 2500, 3500, 4500, or 5500 (2013-2018) with a 6.7L diesel engine experiencing boost issues or strange noises? The 5494878RX 6.7 Cummins Turbo Actuator is designed to fix these problems. This actuator is compatible with Holset HE300VG and HE351VE VGT turbos, replacing part number 68481772AA. It comes with a calibration kit to make installation easier.
What We Like:
- Restores drivability and fixes boost problems.
- Made from high-quality, durable materials tested to meet or beat OEM standards.
- The included Turbine Calibration Module and instructions make installation a breeze.
- Improves throttle responsiveness and eliminates annoying noises.
- Comes with attachment hardware, an alignment pin, and a full gasket kit.
- Offers a generous 10-year after-sales service for peace of mind.
- Significantly more affordable than dealer replacements.
What Could Be Improved:
- While the calibration kit is included, some users might find the written instructions could be more detailed for absolute beginners.
This turbo actuator is a smart investment for keeping your Cummins engine running smoothly. Don’t let actuator codes slow you down; get back on the road with improved performance.
2. 5494878RX 68481772AA 6.7L Cummins Turbocharger Actuator Calibrate Kit Fits for 2013-2018 Dodge Ram 2500/3500/4500/5500 Diesel(VGT) HE300VG HE351VE
Rating: 8.9/10
Is your 2013-2018 Dodge Ram 2500/3500/4500/5500 diesel truck not performing like it used to? This 5494878RX 68481772AA 6.7L Cummins Turbocharger Actuator Calibrate Kit is designed to bring your Variable Geometry Turbocharger (VGT) back to life. It fits HE300VG and HE351VE turbo models, specifically for the ISB 6.7L Cummins engine found in these Ram trucks. This kit includes everything you need, like a new turbo actuator, installation parts, and an upgraded calibration box, making it a complete solution for restoring your truck’s power and efficiency.
What We Like:
- This kit is a direct replacement, meaning no extra modifications are needed for installation.
- It’s an all-in-one solution, providing the turbo actuator, installation kit, and a calibration box together.
- The kit replaces many common part numbers, making it easy to find the right fit for your truck.
- It’s built to work with the specific VGT turbochargers in your Ram diesel.
- The operating voltage range (8-28V) and temperature range (-40~125°C) ensure it works reliably in various conditions.
What Could Be Improved:
- The product description doesn’t offer specific details about the brand or manufacturer’s warranty.
- While it mentions solving problems, it doesn’t detail common issues this kit addresses.
This turbocharger actuator calibrate kit offers a comprehensive fix for your Ram diesel’s VGT turbo. It’s a practical choice for getting your truck back to its best performance.
3. 5494878RX Turbo Actuator Compatible with Dodge Ram 2500 3500 4500 5500 2013-2018 ISB 6.7L Cummins VGT Turbocharger Holset HE300VG HE351VE Repalce# 68445522AA 68295438 3798575
Rating: 8.8/10
If your Dodge Ram 2500, 3500, 4500, or 5500 from 2013-2018 is experiencing a loss of power or rough acceleration, a failing turbo actuator could be the culprit. The 5494878RX Turbo Actuator is designed to be a direct replacement for your original part, specifically for models equipped with the Cummins ISB 6.7L engine and VGT turbochargers like the Holset HE300VG and HE351VE. This actuator is built to restore your turbocharger’s proper function, bringing back smooth performance and better fuel economy.
What We Like:
- Exact fit for 2013-2018 Dodge Ram trucks with the 6.7L Cummins ISB engine and specific VGT turbos.
- Direct replacement for part numbers 5494878RX, 68445522AA, 68295438, and 3798575.
- Easy plug-and-play installation with no modifications needed.
- Restores proper boost control for improved acceleration and fuel efficiency.
- Professionally remanufactured with updated parts and pre-calibrated for reliable performance.
- Built tough to handle demanding driving conditions and last a long time.
What Could Be Improved:
- It’s crucial to double-check your existing part number before buying to ensure compatibility.
This turbo actuator is a solid solution to get your diesel truck running at its best again. It offers a straightforward fix for common turbo issues, ensuring you get back on the road with confidence.
4. 5494878RX Turbo Actuator 6.7 Cummins Compatible With 2013-2018 Dodge Ram 2500 3500 4500 5500 6.7L Diesel VGT Turbocharger Actuator Holset HE300VG HE351VE VHT Replace 68445522AA
Rating: 9.2/10
The 5494878RX Turbo Actuator is a high-quality replacement part designed for 2013-2018 Dodge Ram trucks with a 6.7L Cummins diesel engine. This actuator is compatible with Holset HE300VG and HE351VE VGT turbochargers and replaces OE numbers like 68445522AA. It’s made from durable aluminum for long-lasting performance and comes with everything you need for installation, including a wiring harness adapter and a calibration box.
What We Like:
- Built to Last: Made from high-quality aluminum, this actuator is corrosion-resistant and built for durability and heat dissipation, ensuring it works for a long time.
- Complete Kit: The package includes the turbocharger actuator, an installation kit, a calibration box, and an installation tutorial, making installation straightforward.
- Wide Compatibility: It fits 2013-2018 Dodge Ram 2500, 3500, 4500, and 5500 models with the 6.7L diesel engine and VGT turbochargers. It also includes an adapter to work with 2007.5-2012 turbochargers.
- Peace of Mind: A 2-year warranty is included, offering a free replacement if the actuator fails.
- Cost-Effective: This product can save you money compared to dealership costs.
What Could Be Improved:
- Programming for Later Models: For 2018 and later models, a “security bypass OBD2 cable” (sold separately on Amazon) is required for programming. Without it, the programmer may not work correctly.
- Verification Needed: While compatible with many models, it’s crucial to double-check all specifications and ensure your truck has a Variable Geometry Turbocharger (VGT) before purchasing.
This turbo actuator offers a reliable and affordable solution for your Dodge Ram’s diesel engine. With its durable construction and comprehensive warranty, it’s a smart choice for restoring turbo performance.
5. 6.7 Cummins Turbo Actuator Fits for Dodge Ram 2500 3500 4500 5500 2013-2018 HE300VG HE351VE VGT Turbo
Rating: 8.8/10
This 6.7 Cummins Turbo Actuator Kit is designed to bring your Dodge Ram 2500, 3500, 4500, or 5500 (2013-2018) back to life. If your truck has a 6.7L ISB Cummins diesel engine and a VGT turbo, this actuator can fix common problems like lost power, strange noises, and error codes. It replaces older parts and comes with everything you need to get your turbo working like new again, saving you money on expensive repairs.
What We Like:
- It fits perfectly on Dodge Ram trucks from 2013 to 2018 with the 6.7L Cummins engine and VGT turbo.
- It fixes common turbo issues like loss of boost and unusual exhaust brake sounds, making your truck run better.
- The kit includes the actuator, all necessary hardware, and a special calibrator, so you don’t need special tools to install it.
- It’s built with strong materials to handle tough engine conditions and is tested to meet high quality standards.
- The company offers good customer support and a satisfaction guarantee, so you can buy with confidence.
What Could Be Improved:
- While the part numbers list is extensive, it could be slightly more organized for quicker identification.
- The instructions, while clear, could benefit from a few more diagrams for those who are less mechanically inclined.
This turbo actuator kit is a smart choice for any owner looking to restore their Cummins engine’s performance and avoid costly dealership visits. It offers a comprehensive solution for common VGT turbo problems, backed by quality construction and reliable support.
Choosing the Right VGT Turbo for Your 6.7 Cummins: A Buyer’s Guide
Upgrading your 6.7 Cummins with a Variable Geometry Turbocharger (VGT) can make a big difference. It can give you more power, better fuel economy, and a faster response from your engine. But with so many options, how do you pick the best one? This guide will help you understand what to look for.
Key Features to Look For
When you’re shopping for a VGT turbo for your 6.7 Cummins, keep these important features in mind:
- Turbo Size and Flow Rate: The turbo needs to match your engine’s needs. A turbo that’s too small can’t supply enough air, leading to less power. A turbo that’s too big can cause lag, making your truck feel slow to respond. Look for turbos designed for your specific truck year and any modifications you have.
- Compressor Wheel Design: The shape and material of the compressor wheel are important. Some wheels have more blades or a different angle to move more air more efficiently. This can mean better performance.
- Turbine Housing A/R Ratio: This ratio affects how quickly the turbo spools up (starts spinning) and how well it breathes at higher RPMs. A smaller A/R ratio usually means quicker spool, while a larger one helps with high-end power.
- Actuator Type: VGT turbos use an actuator to change the angle of the turbine vanes. Electronic actuators are common and offer precise control. Some aftermarket turbos might use different actuator designs.
- Durability and Build Quality: A good VGT turbo is built to last. Look for strong materials and solid construction.
Important Materials
The materials used in a VGT turbo play a big role in its performance and how long it lasts.
- Compressor and Turbine Wheels: These are often made from strong, lightweight alloys like cast iron or forged aluminum. Forged aluminum is lighter and stronger, which can help the turbo spin up faster.
- Housing: The housings are usually made from cast iron. High-quality cast iron helps manage heat and withstand the high temperatures and pressures inside the turbo.
- Bearings: The bearings allow the turbo to spin smoothly. Ceramic ball bearings or high-performance journal bearings are often used in upgraded turbos for better durability and less friction.
Factors That Improve or Reduce Quality
Several things can make a VGT turbo perform better or worse.
- Precision Balancing: Turbos spin incredibly fast. They must be perfectly balanced to avoid vibrations. High-quality turbos are precisely balanced to ensure smooth operation and longevity. Imbalanced turbos can fail quickly.
- Heat Management: The exhaust side of a turbo gets very hot. Good heat handling helps the turbo last longer and perform better. Some turbos have special coatings or designs to help with this.
- Manufacturing Tolerances: How precisely the parts are made matters. Tight tolerances mean parts fit together perfectly, reducing leaks and improving efficiency.
- Brand Reputation and Warranty: Established brands often have better quality control. A good warranty shows the manufacturer stands behind their product.
- Installation Quality: Even the best turbo won’t work well if it’s not installed correctly. Make sure your installer has experience with VGT turbos.
User Experience and Use Cases
People upgrade their 6.7 Cummins VGT turbos for different reasons.
- Daily Driving: Many owners choose a turbo that offers a quicker throttle response and a bit more power without being too aggressive. This makes daily driving more enjoyable.
- Towing and Hauling: If you tow heavy loads, a VGT turbo can provide the extra grunt needed to get moving and maintain speed on hills. It can also help with exhaust gas temperatures (EGTs) when towing.
- Performance and Competition: For those looking for maximum power, larger, high-flow VGT turbos are available. These are often paired with other engine modifications.
- Improved Fuel Economy: Surprisingly, a more efficient turbo can sometimes lead to better fuel mileage because the engine doesn’t have to work as hard.
Frequently Asked Questions (FAQ) about VGT Turbos for 6.7 Cummins
Q: What does VGT stand for?
A: VGT stands for Variable Geometry Turbocharger. This means the turbo can change its shape to work better at different engine speeds.
Q: Why should I upgrade my stock 6.7 Cummins turbo?
A: Upgrading can give you more horsepower, better throttle response, and improved fuel efficiency. It can also help lower exhaust gas temperatures when towing.
Q: Will a VGT turbo fit my 6.7 Cummins directly?
A: Many aftermarket VGT turbos are designed to be direct bolt-on replacements for the stock turbo. Always check the product description to be sure.
Q: How does a VGT turbo improve throttle response?
A: The variable vanes in a VGT turbo adjust to create boost faster at lower engine speeds. This makes your truck feel more responsive when you press the gas pedal.
Q: Can a VGT turbo help with towing?
A: Yes, a VGT turbo can help manage exhaust gas temperatures (EGTs) better, which is important when towing heavy loads. It also provides more power for easier towing.
Q: What is turbo lag, and how does a VGT turbo affect it?
A: Turbo lag is the delay between pressing the gas pedal and feeling the turbo boost. VGT turbos reduce lag by adjusting their geometry to build boost more quickly.
Q: Do I need to tune my truck after installing a VGT turbo?
A: For optimal performance and to get the most out of your new turbo, a custom tuning or an engine tuner is often recommended. It helps the engine’s computer work with the new turbo.
Q: What are exhaust gas temperatures (EGTs)?
A: EGTs are the temperatures of the exhaust gases coming out of your engine. High EGTs can damage your engine, and a good turbo helps keep them in check.
Q: How do I maintain a VGT turbo?
A: Proper maintenance includes regular oil changes with quality oil, keeping air filters clean, and ensuring the exhaust system is free of leaks. Follow the manufacturer’s specific recommendations.
Q: Are there different sizes of VGT turbos for the 6.7 Cummins?
A: Yes, there are various sizes and flow rates available, from stock-replacement upgrades to larger, high-performance turbos designed for more aggressive applications.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.

I’m the recipe developer and food photographer behind Air Fryer at Tiffany’s. I’m also a wife, mom to two adventurous little boys, registered nurse, and live in the great Midwest. Join me as I show you new ways to use your air fryer that you never knew possible.




