DPS Fummins Compound Turbos – Twin Turbo Kit for Ford Cummins Swaps
Fits All Ford Cummins Conversions – Including Excursion & OBS Builds
Get the most out of your Ford Cummins swap with the DPS Fummins Compound Turbo Kit. Whether you're building a Cummins-powered Excursion or an OBS Ford, this twin turbo system delivers high performance, lower EGTs, and OEM-like fitment—clearing the heater/AC box for easy installation on any Ford chassis.
Supporting power from 350 to 1300 HP, these kits provide fast spool-up, strong midrange torque, and excellent drivability. Ideal for towing, racing, sled pulling, or daily use.
Turbo Stage Options:
Stage 2.5 Max 625hp S362/68/.70 over S475
Stage 3 Max 650hp S362/68/.70 over S480
Stage 4 Max 650hp S363/68/.70 over S475
Stage 4B Max 675hp S363/68/.70 over S480
Stage 4.5 Max 650hp S363/68/.70 Ball Bearing over S475
Stage 4.5B Max 675hp S363/68/.70 Ball Bearing over S480
Stage 5 Max 700hp S363/73/.80 over S475
Stage 5.5 Max 700hp S363/73/.80 Ball Bearing over S475
Stage 6 Max 750hp S363/73/.80 over S480
Stage 6.5 Max 750hp S363/73/.80 Ball Bearing over S480
Stage 8 Max 1100hp S366/73/.80 over S480
Stage 8.5 Max 1100hp S366/73/.80 Ball Bearing over S480
Key Features:
- Supports up to 1300 HP (with proper tuning and fuel upgrades)
- Clears heater/AC box—engineered for Ford chassis
- Includes performance 3-piece high-flow exhaust manifold
- Kevlar/Nomex-lined silicone charge pipe for optimal flow & durability
- Lowers EGTs by 250–450°F vs single turbo setups
- Wastegated for adjustable boost control
Why DPS for Your Fummins Build?
Diesel Power Source is the only manufacturer offering compound turbos built specifically for Fummins swaps. Our kits are CFD-tested, CAD/CAM-designed, and precision-engineered to deliver cooler, denser boost air—maximizing combustion, torque, and spool-up without sacrificing fitment or reliability.
Boost Pressure & Engine Prep:
- Use head studs if running over 45 PSI
- Use fire rings for boost exceeding 55 PSI
- Kits are built to safely handle 55+ PSI with supporting mods
Need a similar setup for your Chevy Cummins swap? Check out our Chummins Compound Kits.
Unlock serious performance in your Fummins project with DPS Compound Turbos—engineered for power, precision, and long-lasting reliability.
- S362/68 over S475 - Max 625hp- Stg 2.5
- S362/68 over S480 - Max 650hp- Stg 3
- S363/68 over S475 - Max 650hp- Stg 4
- S363/68 over S480 - Max 675hp- Stg 4b
- S363/68 Ball Bearing over S475 - Max 650hp - Stg 4.5
- S363/68 Ball Bearing over S480 - Max 675hp- Stg 4.5b
- S363/73 over S475 - Max 700hp - Stg 5
- S363/73 Ball Bearing over S475 - Max 700hp - Stg 5.5
- S363/73 over S480 - Max 750hp - Stg 6
- S363/73 Ball Bearing over S480- Max 750hp- Stg 6.5
- S366/73 over S480 - Max 1100hp - Stg 8
- S366/73 Ball Bearing over S480- Max 1100hp - Stg 8.5
3 Reviews
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Fummins
Thanks so much guys, fummins compounds fit like a glove. 97 f350 with 74k original miles , 6k on 24 valve Cummins & 47re swap ,shackle reversal , cross over steering and around 10 inch of lift .rolling on 37s .funny thing is I built this to pull our toy hauler. Can’t wait to pull with compounds. By the way I have to tell you I was skeptical of a fummins compound kit due to the lack of space but your guys on the phone assured me this kit would work. Wish I would have found you guys before I first installed my Cummins with a single BD turbo
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Fitment
These kits just fit and work with the HVAC box. I did have to modify the downpipe but I knew that going into the project. Dropped a 5.9L12V into a 2005 F350. Awesome power and torque, now just need to get the trans built.
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Best compound kit for Ford/Cummins project
This kit just fits! I went with the smaller 62/65 with s475 for my 2002 Excursion conversion. Best family tow vehicle. The kit fit and you told me I would have to modify the downpipe to fit and I just had a muffler shop do a custom fit downpipe and exhaust for me. We look forward to many more years of family camping with this new setup! Thanks DPS
