HE400VG Turbo & Exhaust Manifold Kit for Cummins ISX15 / X15 (2016–2024)
This Cummins X15 turbo manifold kit from Diesel Power Source combines two of the most common ISX15/X15 replacement parts into one complete package. Designed for 2016–2024 Cummins ISX15 and X15 engines, this bundle includes a brand-new HE400VG VGT turbocharger with actuator, our DPS high-flow exhaust manifold, and a complete installation hardware kit.
Replacing the turbo and manifold together improves reliability, reduces installation time, and eliminates common failure points such as cracked manifolds, exhaust leaks, laggy turbo response, and worn VGT components.
If you only need the turbo itself, see our direct replacement product here:
Cummins X15 HE400VG Turbo Replacement
What’s Included in This Cummins X15 Turbo Manifold Kit
- HE400VG VGT Turbocharger with Brand-New Actuator
• No core charge
• Brand-new electronic actuator (not remanufactured)
• Two compressor options available (67mm or 70mm) - DPS High-Flow Exhaust Manifold
• Press-fit 3-piece design for durability and expansion control
• Increases exhaust flow up to 22%
• Reduces EGTs by approximately 75–100°F
• High-silicon ductile iron construction
• Available with ceramic coating for heat resistance - There are two options- 1000° and the 2400° ceramic coating provides additional thermal protection for higher-duty applications) - Complete Manifold Hardware Kit
• Bolts, spacers, gaskets, turbo studs & nuts
• Designed for CM2250 & CM2350 engines
• Built for proper sealing and long service life
Turbo Size Options (67mm vs 70mm)
Compressor Wheel: 7-Blade Forged Machined Wheel (FMW)
Turbine Wheel: 11 Blade Design | Inducer 72mm | Exducer 68mm
| Turbo Option | Compressor Size | Recommended Use |
|---|---|---|
| HE467VG | 67mm | Up to ~575 HP - Stock to mild tuning, towing, daily work use |
| HE470VG | 70mm | Up to ~700 HP - Higher horsepower builds and performance tuning |
Fitment (ESN Verification Required)
This kit fits many Cummins ISX15 and X15 engines including CM2250 and CM2350 platforms. Typical engine build dates fall between 2016–2024.
Please provide your Cummins Engine Serial Number (ESN) so we can confirm compatibility before shipment.
Important Fitment Warning:
If your existing turbo has both of the following features, this configuration will NOT fit:
- Elongated compressor cover
- Actuator with two coolant ports
If you are unsure, our team will verify your ESN and confirm the correct turbo configuration.
Why Replace the Turbo and Exhaust Manifold Together?
Many Cummins ISX15/X15 failures occur when a worn turbocharger is installed onto an older cracked or warped exhaust manifold. Replacing both components together improves reliability and helps ensure proper turbo alignment and exhaust flow.
- Improved airflow and turbo response
- Reduced exhaust leaks and gasket failures
- Lower exhaust gas temperatures
- Longer turbo and manifold lifespan
- Reduced labor compared to separate replacements
Holset HE400VG Turbo Part Numbers Referenced
The HE400VG turbo included in this kit is commonly associated with the following Holset turbo part numbers used on Cummins X15 / ISX15 engines:
- Holset 5459710
- Holset 5358001
- Holset 5358454
- Holset 5458936
- Aftermarket interchange number 100-040-000
Always verify compatibility using your Cummins ESN.
Common Cummins X15 Turbo & Manifold Failure Symptoms
- Loss of power
- Slow turbo spool or laggy throttle response
- Excessive black smoke under acceleration
- Turbo actuator or VGT position fault codes
- Boost pressure errors or repeated check engine lights
- Whining or unusual turbo noises
- Exhaust leaks or cracked manifolds
If your truck is experiencing these symptoms, replacing both the turbo and manifold together can restore airflow and overall engine performance.
Why Choose Diesel Power Source?
Diesel Power Source engineers Cummins turbo and manifold upgrades designed for OEM fitment, durability, and real-world performance. This kit provides a complete solution for restoring airflow and reliability to your Cummins X15 platform.
- No core charge
- Brand-new VGT actuator included
- Forged machined compressor wheel technology
- High-flow exhaust manifold design
- Complete installation hardware kit
Warranty
This Diesel Power Source turbo and manifold kit includes a 1-year warranty and is backed by our technical support team to ensure correct fitment and installation.
Cummins X15 Turbo Replacement Resources
Customers researching a Cummins X15 turbo replacement often compare several components and upgrade options. The following guides and parts may help when diagnosing or upgrading your truck’s turbo system:
Choosing the correct turbo configuration depends on engine configuration, emissions system, and horsepower goals. If you are unsure which configuration your truck requires, provide your Cummins Engine Serial Number (ESN) and our team can verify compatibility.
Frequently Asked Questions
This kit includes a brand-new HE400VG VGT turbocharger with actuator, a DPS high-flow exhaust manifold, and a complete hardware installation kit including bolts, spacers, gaskets, and turbo studs.
Many 2016–2024 Cummins X15 and late ISX15 engines use the Holset HE400VG variable geometry turbocharger.
Replacing both components at the same time improves airflow, prevents exhaust leaks, and avoids repeating labor if the manifold later cracks or warps.
The 67mm turbo supports approximately 575 HP and is best for stock or mildly tuned trucks. The 70mm turbo supports up to about 700 HP and is recommended for higher horsepower or performance builds.
1 Review
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Turbo for 2018 ISX15
It bolts right in i do suggest that you get new studs and bolts it would be nice if it was a option for it. Over all very satisified with it. Comes with gaskets too. You do have to pull parts off old turbo so make sure you check everything.
