Smeding Diesel S400 Second-Gen Turbo Kit with Manifold (2003–2007 5.9L Cummins)

Unlock Maximum Power for Your Cummins

Give your 2003–2007 Dodge Ram 5.9L Cummins the airflow and performance it deserves with the Smeding Diesel S400 Second-Gen Turbo Kit. Designed, assembled, and quality-controlled right here in the USA, this kit delivers the perfect balance of durability, drivability, and raw power.

As diesel enthusiasts ourselves, we build our kits to perform for real-world drivers—whether you’re towing heavy, daily driving, or chasing big horsepower numbers.

What’s Included in the Kit

Unlike competitors who leave you sourcing extra parts, the Smeding Diesel S400 Kit comes complete with everything you need for a bolt-on install:

• S400 Turbocharger (choose from multiple sizes: S464/83, S467/83, S472/83, S472/87 — available in cast or billet wheel options)

• T4 3-Piece Exhaust Manifold for second-gen placement

• 4″ Downpipe for improved exhaust flow

• 5″ Intake Kit with Filter for maximum airflow

• Oil Feed & Drain Lines

• Intercooler Piping & Hardware for a clean, complete installation

Key Benefits

• Performance Your Way: Customize turbo size and housing (options in .90, 1.0, 1.10 A/R) to dial in spool, towing power, or top-end performance.

• Lower EGTs & Better Airflow: The second-gen location paired with the 5″ intake keeps your Cummins breathing cool, clean air.

• True Bolt-On Solution: No missing parts, no guesswork. Everything you need is in the box.

• Assembled in the USA: Built by diesel enthusiasts who understand your truck.

• Fast Shipping: Most kits ship within 24–48 hours so you can get back on the road.

We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.

Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.

International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.