Turbo systems and exhaust manifolds for Ford trucks with Cummins engine swaps - engineered by Diesel Power Source.
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A Fummins is a Ford truck (typically a Super Duty F-250, F-350, or F-450) that has had a Cummins diesel engine swapped in to replace the factory Power Stroke. These conversions are popular among diesel enthusiasts who want the legendary durability and tunability of a Cummins engine in a Ford body. DPS builds the turbo systems and exhaust manifolds that complete the performance side of these builds.
DPS is the only manufacturer in the world that builds compound turbo kits specifically engineered for the Fummins chassis. A generic Cummins compound kit will not fit properly in a Ford engine bay - the steering geometry, crossmember placement, heater box location, and intercooler routing are all different from a Dodge truck. Every DPS Fummins kit uses conversion-specific piping, mounting hardware, and routing designed for Ford chassis constraints.
DPS makes the only Fummins compound kits on earth
Piping and routing designed for Ford engine bays
90 degree positioning clears Ford heater box
Both turbos, manifold, piping, oil lines, all hardware
The Cummins inline-six delivers massive low-RPM torque that the Ford Super Duty chassis handles exceptionally well. Ford's heavier-duty suspension, frame, and braking system paired with Cummins power makes for a towing combination that outperforms either platform alone.
12V Cummins swaps (1989-1998 engines) are the most popular because the mechanical injection requires no electronic integration with the Ford ECM. No wiring, no programming, no compatibility issues. Just bolt-on mechanical diesel power.
Many Fummins builds start because the factory 6.0L or 6.4L Power Stroke failed. Rather than replace with another Power Stroke, owners swap in a Cummins for long-term reliability and easier maintenance.
Once the Cummins is in place, the full DPS turbo lineup is available - from S300 singles to compound kits. The same proven turbo systems used on thousands of Dodge Cummins trucks, engineered to fit the Ford chassis.
Ready to add turbo performance to your Fummins? Browse Fummins Turbo Kits, Chummins Kits, or call 801-930-8404 with your Ford year, Cummins engine, and power goals.
A Fummins conversion installs a Cummins diesel engine into a Ford Super Duty truck. Builders choose Fummins swaps to combine the strength and comfort of a Ford chassis with the torque, reliability, and long service life of a Cummins engine. The result is a truck that tows harder, runs cooler under load, and is easier to service long-term than many factory powertrains.
The best Cummins for a Fummins swap depends on your goals and application. A 12-valve Cummins is popular for simplicity and reliability. A 24-valve common-rail offers easier tuning and strong towing manners. A properly sized 6.7 Cummins provides maximum torque and modern drivability when cooling, gearing, and turbo selection are matched correctly to the Ford platform.
Yes. When properly installed and sized, a Fummins conversion can be daily driven and excels at towing. Many owners report improved low-RPM torque, lower EGTs on long grades, and better durability compared to the original engine. Tuning often improves drivability, shift strategy, and boost control, especially on tow-focused builds.
