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SKU: 202-402-2392 / UPC: 2024022392
ATS Diesel Aurora 4000 Stage 2 Turbo System for 2013–2018 Ram 2500/3500/4500/5500 6.7L Cummins
The ATS Diesel Aurora 4000 Stage 2 Turbo System is a high-performance, direct bolt-on upgrade for 2013–2018 Ram trucks equipped with the 6.7L Cummins diesel engine.
This complete turbo system replaces the factory unit with upgraded components designed for faster spool-up, increased airflow, and the ability to support over 650 rear-wheel horsepower. It features a billet compressor wheel, a high-flow Inconel turbine wheel, and a T6 turbine housing with a 1.10 A/R ratio.
The system is engineered to deliver strong mid-range and top-end power while keeping exhaust gas temperatures in check during towing or performance driving.
Key Features
- Billet Compressor Wheel – 60mm inducer / 83mm exducer design flows 30% more air than stock for quicker spool-up and higher power output
- Inconel Turbine Wheel – 80/73mm mixed-flow wheel reduces backpressure and helps lower EGTs by up to 200°F
- T6 Turbine Housing – 1.10 A/R configuration provides faster spool-up (up to 200 RPM earlier than stock) and maintains a favorable drive pressure ratio
- 360-Degree Thrust Bearing – Supports high boost levels (up to 50+ PSI) with excellent long-term durability
- Direct Bolt-On Design – Matches factory mounting points, manifolds, and downpipe with no modifications required
- EPA Compliant – Meets emissions standards while delivering significant performance gains
Specifications
| Detail | Value |
|---|---|
| Brand | ATS Diesel |
| Type | Aurora 4000 Stage 2 Turbo System |
| Compatibility | 2013–2018 Ram 2500/3500/4500/5500 6.7L Cummins |
| Compressor Wheel | 60mm Billet (83mm Exducer) |
| Turbine Wheel | 80/73mm Inconel Mixed-Flow |
| Turbine Housing | T6 with 1.10 A/R |
| Max Horsepower Support | 650+ RWHP |
| Max Boost | 50+ PSI |
| Country of Origin | United States |
| Warranty | Limited Lifetime on Rotating Assembly / 2 Years on Housing |
Whats Included
- ATS Aurora 4000 Stage 2 Turbocharger
- All Necessary Gaskets and O-rings
- Mounting Hardware
- Installation Instructions
Product Notes
- Direct bolt-on replacement — no manifold or piping changes required
- Best results achieved when paired with upgraded fueling and tuning
- Professional installation recommended
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 2013–2018 | Ram | 2500 6.7L Cummins | Pickup |
| 2013–2018 | Ram | 3500 6.7L Cummins | Pickup |
| 2013–2018 | Ram | 4500 6.7L Cummins | Cab Chassis |
| 2013–2018 | Ram | 5500 6.7L Cummins | Cab Chassis |
Why Choose ATS Diesel?
- Industry leader in high-performance Cummins diesel turbo systems
- Precision CNC-machined billet components for exact tolerances and reliability
- Proven in both heavy towing and high-horsepower performance applications
- Engineered and tested in-house for real-world durability
Frequently Asked Questions
- Q: Will this turbo fit my 2016 Ram 3500 6.7L Cummins?
- A: Yes, it is a direct bolt-on for all 2013–2018 Ram 2500, 3500, 4500, and 5500 models with the 6.7L Cummins engine.
- Q: How much power can this turbo support?
- A: The Aurora 4000 Stage 2 is capable of supporting over 650 rear-wheel horsepower with proper supporting modifications and tuning.
- Q: Is this a variable geometry turbo?
- A: Yes. It retains the factory VGT actuator for excellent low-end response and boost control.
- Q: Do I need to tune after installing this turbo?
- A: While not strictly required for basic operation, tuning is highly recommended when running higher boost levels or adding supporting modifications.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-packed box (28" x 18" x 16")
- Weight: 58 lbs (product) / 65 lbs (shipping)
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