HE400VG Turbo & Exhaust Manifold Kit for Cummins ISX15 / X15 | 2016–2024
The Diesel Power Source® HE400VG Turbo & Manifold Package combines a brand-new HE400VG VGT turbocharger with actuator, the DPS high-flow ISX15 exhaust manifold, and a complete exhaust manifold hardware kit into one box for 2016–2024 Cummins ISX15 and X15 engines. This package is designed for trucks that need both a turbo and manifold replacement in the same job, whether due to a failed VGT turbo, a cracked exhaust manifold, or both.
Replacing the turbo and manifold together eliminates two of the most common ISX15 failure points in a single installation, reduces total shop time, and ensures that both components are matched for optimal exhaust flow and VGT performance from day one.
Bundle and save. Purchasing the turbo and manifold together at the package price saves money compared to buying each component separately. If you only need the turbo, see our standalone HE400VG turbo. If you only need the manifold, see our ISX15 exhaust manifold.
Important: This kit does NOT fit HE451VE applications. The HE451VE uses a different compressor cover and actuator configuration. If your current turbo is an HE451VE, contact Diesel Power Source® before ordering.
Why Replace the Turbo and Manifold Together
On Cummins ISX15 and X15 engines, turbo failure and manifold cracking often occur in the same mileage window. A cracked or warped manifold creates exhaust leaks that starve the turbo of drive pressure and increase EGTs. A failing turbo with sticking VGT vanes or actuator issues creates backpressure spikes that accelerate manifold cracking. Replacing only one leaves the other component as a ticking clock.
This package addresses both failure points in one installation. The DPS high-flow manifold increases exhaust flow up to 22% and reduces EGTs by approximately 75–100°F, which directly benefits turbo longevity. The new HE400VG turbo with a fresh actuator restores proper VGT function, which stabilizes backpressure and protects the new manifold.
What's Included in This Package
HE400VG VGT Turbocharger
- Two compressor options: HE467VG (67mm, up to ~575 HP) or HE470VG (70mm, up to ~700 HP)
- 7-blade forged machined compressor wheel (FMW)
- 11-blade turbine wheel (72mm inducer, 68mm exducer)
- Brand-new electronic VGT actuator (not remanufactured), pre-calibrated
- New intake air temperature sensor
- New gaskets
- No core charge
The 67mm compressor matches the largest factory size. The 70mm compressor is exclusive to Diesel Power Source® and is recommended for applications above 500 HP.
DPS High-Flow Exhaust Manifold
- Press-fit 3-piece expansion design for thermal durability
- Increases exhaust flow up to 22% over the factory manifold
- Reduces EGTs approximately 75–100°F
- High-silicon ductile iron construction
- Available in EGR and Non-EGR configurations
- Available with 1000° or 2400° ceramic coating
Exhaust Manifold Hardware Kit
- 12 bolts, 12 spacers, 5 gaskets
- Turbo studs and nuts
- Fits ISX15 CM2250 and CM2350 engines
- Exceeds OEM specification for sealing and durability
Manifold Selection Guide
| Option | EGR Configuration | Coating | Best For |
|---|---|---|---|
| Non-EGR, 1000° coating | Without emissions (deleted) | Standard ceramic | Deleted trucks, cost-effective option |
| Non-EGR, 2400° coating | Without emissions (deleted) | High-temp ceramic | Deleted trucks, maximum heat protection |
| EGR, 1000° coating | With emissions (EGR intact) | Standard ceramic | Emissions-intact trucks, cost-effective |
| EGR, 2400° coating | With emissions (EGR intact) | High-temp ceramic | Emissions-intact trucks, maximum heat protection |
The 2400° coating provides the highest level of thermal protection and is recommended for trucks operating in sustained high-load conditions such as heavy hauling, mountain grades, or hot-climate operations. The 1000° coating provides excellent heat resistance for standard commercial duty cycles.
Turbo Compressor Options
| Turbo Option | Compressor | Max HP | Recommended Use |
|---|---|---|---|
| HE467VG (67mm) | 67mm inducer, 7-blade FMW | ~575 HP | Stock replacement, mild tuning, fleet use |
| HE470VG (70mm) | 70mm inducer, 7-blade FMW | ~700 HP | Builds over 500 HP, performance tuning, heavy hauling |
Common ISX15 Failures This Kit Solves
- Cracked or warped exhaust manifold causing exhaust leaks, smoke at the manifold, and reduced turbo efficiency
- Failed VGT turbo or actuator causing low boost, turbo position faults, or black smoke
- Laggy turbo response from worn turbo bearings or sticking VGT vanes
- Leaking manifold joints from thermal cycling and OEM gasket deterioration
- Repeated turbo failures caused by a cracked manifold starving the turbo of proper exhaust flow
Fitment
This kit fits 2016–2024 Cummins ISX15 and X15 engines with CM2250 (some years) and CM2350 platforms. ESN verification is required before shipment. Compatible with Freightliner, Peterbilt, Kenworth, Volvo, International, and Western Star platforms.
Select your manifold configuration at checkout: EGR (emissions intact) or Non-EGR (deleted). Select your coating level: 1000° or 2400°. Select your turbo compressor size: 67mm or 70mm.
Not compatible with HE451VE turbo applications.
Warranty
This Diesel Power Source® turbo and manifold package includes a 1-year warranty on the turbocharger and is backed by our technical support team.
Related ISX15 / X15 Products
Frequently Asked Questions
On ISX15 and X15 engines, turbo failure and manifold cracking often happen in the same mileage range. A cracked manifold creates exhaust leaks that reduce turbo efficiency and increase EGTs. A failing VGT turbo creates backpressure spikes that accelerate manifold cracking. Replacing both at once eliminates the two most common ISX15 failure points in a single installation, reduces total shop time, and ensures the components are matched for optimal performance.
The EGR manifold is designed for trucks that still have factory emissions equipment (EGR system) intact. The Non-EGR manifold is designed for trucks that have already been deleted. Select the configuration that matches your truck at checkout. Both manifolds share the same high-flow press-fit 3-piece design and offer up to 22% more exhaust flow than the factory manifold.
Both coatings provide thermal protection for the manifold. The 1000° coating is standard and handles typical commercial duty cycles well. The 2400° coating provides higher-temperature resistance and is recommended for heavy-haul applications, mountain driving, hot-climate operations, or any use with sustained high-load EGTs. Both coatings are applied before shipment.
Yes. The package price is lower than purchasing the HE400VG turbo and DPS manifold as separate products. You also save on shipping and reduce total installation time by having both components ready to install in one job.
Yes. The package includes a complete exhaust manifold hardware kit with 12 bolts, 12 spacers, 5 gaskets, turbo studs, and nuts. The hardware kit is designed to exceed OEM specifications for sealing and durability on CM2250 and CM2350 engines.
1 Review
-
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.
