Smeding Diesel S300 Turbo Kit for 2007–2018 6.7L Cummins (Ram 2500 & 3500)

Upgrade your 2007–2018 Dodge Ram 2500 or 3500 6.7L Cummins with the Smeding Diesel S300 Turbo Kit, the ultimate solution for anyone struggling with HE300V or HE351VE turbo failures. Designed for enthusiasts seeking enhanced power, reliability, and drivability, this kit is a direct replacement that delivers more horsepower, faster spool, and long-term durability.

Ditch the Factory HE300V / HE351VE Turbo

The factory HE300V and HE351VE VGT turbos are notorious for failure. Soot, carbon buildup, corrosion, and electronic actuator issues often immobilize the vanes, especially under towing, racing, or high-performance conditions. Stop wasting time and money on remanufactured HE300V/HE351VE turbos—upgrade to the S300 kit for a permanent, high-performance solution.

Why the S300 Kit Outperforms the Factory Turbo

• Fixed-Geometry Design: Eliminates vanes and actuator failures—solving the most common HE300V and HE351VE issues

• Higher Boost & Faster Spool: Quicker throttle response and increased horsepower for heavy towing, racing, or street performance

• Durable Construction: Built to withstand extreme applications and daily driving alike

• All-Inclusive Kit: Turbo, T4 divided exhaust manifold, gaskets, mounting bolts, coolant plugs, oil drain extension, and turbo drain gasket

• Seamless Fit: Retains factory air intake, downpipe, and intercooler piping for easy installation and cost savings

Maximize Performance with Billet Wheels

While cast compressor wheels provide a reliable upgrade over the HE300V or HE351VE, billet wheels are the ultimate choice for high-performance builds. CNC-machined from solid aluminum, they are lighter, stronger, and faster-spooling, unlocking over 650 HP in the right setup.

• Fast Spool: Reduced lag for instant power delivery

• Aggressive Blade Design: Higher airflow and horsepower potential

• Durable Bearings: Heavy-duty or 360° thrust bearings for extreme applications

Turbo Options

Cast Wheels (Reliable & Cost-Effective):

• 62mm cast compressor

• 66mm cast compressor

Billet SXE Wheels – Maximum Performance:

• 63mm SXE

• 64.5mm SXE

• 66mm SXE

• 69mm SXE

• 72mm SXE-R*

• 63mm SXE-R*

*Requires 360° thrust bearing upgrade

Key Highlights

• Direct replacement for HE300V / HE351VE turbos

• Fits 2007–2018 Dodge Ram 2500 & 3500 trucks

• Faster spool and more horsepower than stock VGT

• Retains factory components for simpler installation

• Reduced EGT and drive pressure protects your engine

• Pricing starts at $1,675

✅ Why Upgrade to Smeding S300 with Billet Wheels?

• Solve HE300V / HE351VE failures once and for all

• Unlock faster spool, higher horsepower, and extreme reliability

• Protect your engine with lower EGT and reduced drive pressure

• Keep factory air intake, downpipe, and intercooler piping for cost-effective installation

• Billet wheels unlock your turbo’s full potential, perfect for towing, racing, or high-performance street trucks