672124CP3SOASB Speed of Air Short Block (STD/AUTO)

Features:

• Patented Speed of Air piston technology
• CNC machined turbulators improve combustion efficiency
• Thermal barrier coated piston crowns
• Anti friction coated piston skirts
• Potential fuel savings up to 25%
• Quicker turbo spool response
• Improves usable low end power
• Helps reduce soot and emissions
• ISO 9001 quality standards
• Includes all internal engine components
• Complete installation gasket kit included
• Fits 2021-2024 6.7L Cummins CP3

Make Every Combustion Event Work In Your Favor

If you are opening up a late model Cummins for a major rebuild, there is real value in choosing a short block that can improve how the engine performs after the work is finished. The DFC Diesel 672124CP3SOASB Speed of Air Short Block is designed for 2021-2024 Ram 2500 and 3500 trucks with the 6.7L Cummins and CP3 fuel system, combining a new engine foundation with specialized piston technology. Speed of Air reports fuel savings between 15% and 25%, giving high mileage drivers and frequent towers the potential to get more useful work from every tank. Quicker turbo spool and stronger usable low end power can also make a noticeable difference when pulling away with a loaded trailer or asking the truck to accelerate on a grade. Cleaner combustion helps reduce soot and visible exhaust while potentially extending oil change intervals and reducing regeneration frequency and DEF consumption. DFC supplies the front cover with seal, rear cover with main seal, oil pan, internal components, complete installation gasket kit, and important instructions to make the short block a more comprehensive starting point for the rebuild. Put it all together and you have an assembly that does more than replace worn engine hardware by bringing efficiency focused Speed of Air technology into the heart of your Cummins.

Precision Turbulators Reshape The Way Fuel Burns

Speed of Air Hyperformance pistons separate this DFC short block from a conventional replacement by using precisely CNC machined turbulators across the piston tops to influence combustion inside each cylinder. These patented indentations help create a thinner and more stable boundary layer between the air and fuel mixture, flame front, and combustion chamber walls. That controlled turbulence allows the flame front to burn closer to the cooler metal surfaces of the chamber, helping increase the amount of energy extracted during combustion. Additionally, an aerospace proven thermal barrier coating on the piston crowns retains more heat within the combustion process, supporting improved efficiency and power production. The piston skirts receive an anti friction coating that reduces abrasion and resistance as the pistons travel through their bores, further contributing to efficient operation. Speed of Air pistons are precision engineered to exact tolerances under ISO 9001 quality standards, providing controlled manufacturing behind the specialized piston geometry and coatings. With these technologies working alongside the supplied internal components, covers, seals, oil pan, and installation gasket kit, this short block provides an engineered foundation for the 2021-2024 CP3 equipped 6.7L Cummins.

Fitment: 2021, 2022, 2023, 2024 Dodge RAM 2500/3500 6.7L Cummins (CP3)

Notes:

• Designed for 2021-2024 6.7L Cummins CP3 applications.
• Confirm CP3 fuel system compatibility before ordering.
• This is a short block assembly, not a complete engine.
• Configured for standard automatic transmission applications.
• Front cover with seal is included.
• Rear cover with main seal is included.
• Oil pan and internal components are included.
• Complete installation gasket kit is included.
• Important installation instructions are provided.
• Manufacturer results are based on documented testing.
• Actual fuel economy and emissions results may vary.
• Review all installation requirements before assembly.
• Core Charge: $2,900.