HX40W Turbocharger for Cummins 6CTAA ISC QSC 8.3L | 3800401
HX40W Turbocharger for Cummins 6CTAA ISC QSC 8.3L | 3800401
Overview
This new aftermarket HX40W turbocharger is intended as a replacement for select Cummins 6CTAA, ISC, and QSC 8.3L diesel engine applications rated at approximately 330–350 HP.
Designed for compatible commercial and industrial diesel engine applications, this turbocharger offers a replacement option for equipment requiring a matching HX40W turbocharger assembly.
Turbocharger Model: HX40W
Engine Manufacturer: Cummins
Compatible Engine Series: 6CTAA / ISC / QSC
Engine Displacement: 8.3L
Reference Power Range: 330–350 HP
Primary Reference Numbers: 3800401, 4044175, 4955660
Condition: New Aftermarket Replacement
Application: Select Commercial and Industrial Diesel Engines
Fitment
1. Engine Compatibility
This turbocharger is intended for selected Cummins 8.3L diesel engines requiring a compatible HX40W turbocharger assembly.
| Engine Manufacturer | Engine Model | Displacement | Reference Power | Application |
|---|---|---|---|---|
| Cummins | 6CTAA | 8.3L | 330–350 HP | Select commercial and industrial applications |
| Cummins | ISC | 8.3L | 330–350 HP | Select commercial vehicle applications |
| Cummins | QSC | 8.3L | 330–350 HP | Select industrial and off-highway applications |
Important: The engine models and horsepower range above are supplier-provided application references. This turbocharger does not fit every Cummins 6CTAA, ISC, or QSC engine.
Compatibility depends on the original turbocharger assembly number, engine serial number, horsepower rating, emissions configuration, and installation specifications.
2. Vehicle and Equipment Applications
Potential applications include selected commercial vehicles and industrial equipment equipped with compatible Cummins 8.3L diesel engines.
| Application Type | Engine Series | Fitment Requirements |
|---|---|---|
| Commercial Trucks | Cummins ISC 8.3L | Matching original turbocharger assembly required |
| Buses and Commercial Chassis | Cummins ISC 8.3L | Verify engine and turbocharger part number |
| Industrial Equipment | Cummins 6CTAA / QSC 8.3L | Verify original turbocharger and installation configuration |
| Construction and Off-Highway Equipment | Cummins 6CTAA / QSC 8.3L | Verify engine serial number and original turbocharger |
Vehicle and Equipment Fitment Notice: Specific vehicle makes, equipment models, and production years have not been confirmed for this exact replacement assembly.
Do not determine compatibility based only on the engine model, horsepower rating, or equipment year.
3. How to Confirm Fitment
Before ordering, please follow these steps:
- Confirm your engine model: Check whether your engine is a Cummins 6CTAA, ISC, or QSC 8.3L.
- Check the horsepower rating: The supplier reference range is approximately 330–350 HP.
- Locate the original turbocharger number: Check the identification plate on your existing turbocharger.
- Compare part numbers: Match the complete original turbocharger number against the reference list below.
- Verify the installation configuration: Compare the turbine housing, mounting flange, exhaust outlet, compressor connections, oil connections, and wastegate arrangement.
- Confirm with your engine serial number: Use your Cummins Engine Serial Number (ESN) to identify the required replacement assembly.
Need Help Checking Compatibility? Please contact us with your original turbocharger part number, Cummins ESN, engine horsepower rating, and vehicle or equipment information before ordering.
OE / Part Number Cross Reference
The following supplier-provided reference numbers are associated with this HX40W replacement application.
Key Reference Numbers
3800401, 4044175, 4955660, 4033651, 3590156, 3591022
Complete Reference List
| Reference Group | Part Numbers |
|---|---|
| 353 Series | 3538232, 3538233, 3538240 |
| 359 Series | 3590156, 3591022, 3591045, 3591046, 3591049, 3591055, 3591056, 3591058, 3591651, 3591734, 3591735, 3594323, 3595387, 3596408, 3598074, 3598327 |
| 380 Series | 3800401, 3800401NX, 3800401RX, 3800406, 3800406NX, 3800406RX |
| 403 Series | 4033651, 403365100, 403365100H, 4033651H, 4033651HX, 4036888, 4036979 |
| 404 Series | 4044175, 4044176, 4044969, 4044970, 4044971 |
| 495 Series | 4955660, 495566000, 4955660NX, 4955660RX |
| Additional References | JR800401, TS4044175, TS4044175R |
Important Cross-Reference Notice: These numbers are provided for identification purposes. Some may represent different service replacements, remanufactured references, or turbocharger configurations.
Not every listed reference number is necessarily directly interchangeable with this product. Please verify the complete original turbocharger assembly number before purchasing.
Why Choose This Turbocharger?
- New Aftermarket Replacement: A replacement option for compatible Cummins 8.3L diesel engine applications.
- Multiple Engine Applications: Intended for selected Cummins 6CTAA, ISC, and QSC engines.
- Commercial and Industrial Use: Suitable for consideration in compatible on-highway and off-highway applications.
- Extensive Reference List: Multiple part numbers help customers identify potential replacement applications.
- Fitment Assistance: Customers can provide original turbocharger and engine information for compatibility review.
Specifications
| Product Type | Turbocharger |
|---|---|
| Turbocharger Model | HX40W |
| Condition | New Aftermarket Replacement |
| Engine Manufacturer | Cummins |
| Compatible Engine Series | 6CTAA / ISC / QSC |
| Engine Displacement | 8.3L |
| Reference Horsepower | 330–350 HP |
| Primary Reference Numbers | 3800401, 4044175, 4955660 |
| Application | Select Commercial and Industrial Diesel Engines |
| Engine Years | Varies by Application — Verify Original Turbocharger Part Number |
| Package Quantity | 1 Turbocharger |
Shipping & Warranty
Package Includes: 1 New Aftermarket HX40W Turbocharger.
Package Configuration: Gaskets, mounting hardware, and additional accessories are included only if specified in the confirmed product package.
Shipping: Available shipping options and estimated delivery times are displayed at checkout.
Warranty: Warranty coverage and applicable conditions are subject to our published warranty policy.
Frequently Asked Questions
What engines does this HX40W turbocharger fit?
It is intended for select Cummins 6CTAA, ISC, and QSC 8.3L diesel engines rated at approximately 330–350 HP. Exact compatibility must be verified using the original turbocharger part number.
Does this turbocharger fit every Cummins 8.3L engine?
No. Cummins 8.3L engines use different turbocharger configurations depending on engine model, horsepower rating, emissions specifications, and application.
Does it fit Cummins ISC 330 or ISC 350 engines?
It may fit selected ISC 330–350 HP applications requiring a matching HX40W assembly. Please verify your original turbocharger number and Cummins ESN.
Does it fit Cummins QSC 8.3L industrial engines?
It may fit selected QSC 8.3L industrial applications. Compatibility depends on the original turbocharger assembly and installation configuration.
What years does this turbocharger fit?
Specific engine and vehicle production years have not been confirmed for this exact assembly. Please verify fitment using the original turbocharger part number and Cummins Engine Serial Number.
Are all the listed reference numbers interchangeable?
Not necessarily. Some numbers may represent different service or assembly configurations. Please compare the complete original turbocharger number before purchasing.
Is this a genuine Cummins or Holset turbocharger?
No. This is a new aftermarket replacement product and is not represented as a genuine Cummins or Holset component.
Is professional installation recommended?
Yes. Professional installation is recommended. Inspect the engine lubrication system, intake and exhaust connections, and related components before installation.
Disclaimer
This product is a new aftermarket replacement turbocharger and is not represented as a genuine Cummins or Holset product.
Manufacturer names, trademarks, engine models, equipment models, and reference numbers are used solely for compatibility identification.
Engine applications, horsepower ratings, and cross-reference numbers are provided for reference only. Actual compatibility must be verified using the original turbocharger assembly number, Cummins Engine Serial Number (ESN), and installation configuration.