2.8L Cummins I-4 Information
The ATLAS project sought to produce a 2.8L Cummins powered fullsize Nissan Titan pickup. Nissan would later take an alternative course, selecting instead a brawny 5.0L V-8 turbodiesel manufactured by Cummins. Fast forward to 2017, when Cummins unveiled the R2.8 - the company's first crate engine specifically designed and tailored to diesel conversions. The bulk of the information featured herein will focus on the R2.8, although many of the engine's specifications and features are similar to the ISF2.8, and its industrial/agricultural variant, the QSF2.8.
While the ISF2.8 is manufactured in China, the R2.8 is assembled in the U.S.A with global materials. The crate engine is sold as a package, which includes the components that are vital to retrofitting the engine into nearly any application. This includes, but is not limited to, the accessory drive (alternator, power steering pump), vacuum pump, fuel filter/water separator assembly, remote oil filter system, engine control module (ECM), starter, flywheel, accelerator pedal assembly, and the basic engine wiring harness. The engine is available from Cummins Inc directly as well as a growing number of dealers.
Cummins R2.8 Diesel Specs
Engine | Cummins R2.8 crate engine | |
Manufacturer | Cummins Inc | |
Applications/Production Years | R2.8 | 2017 - current |
ISF2.8 | 2009 - current | |
QSF2.8 | ~2012 - current | |
Displacement | 169.4 CID (171 CID nominal), 2.78 liters (2.8 liters nominal) | |
Configuration | I-4 (inline 4 cylinder), 4 stroke diesel | |
Bore | 3.70 inches (94 mm) | |
Stroke | 3.94 inches (100 mm) | |
Bore/Stroke Ratio | 0.94 (slightly undersquare) | |
Compression Ratio | 16.9:1 | |
Firing Order | 1-3-4-2 | |
Cylinder Numbers | ||
Engine Rotation | Clockwise viewed from front of engine | |
Engine Block Material | Cast iron w/ serviceable liners | |
Cylinder Head Material | Cast iron | |
Injection System | Bosch high pressure common rail | |
Aspiration | Turbocharged, intercooled | |
Valvetrain | Chain driven single overhead camshaft (SOHC), 4 valves per cylinder | |
Valve Lash (Clearance) | Intake | 0.010 inch |
Exhaust | 0.020 inch | |
Cold Start Aid(s) | Intake manifold grid heater | |
Engine Oil Capacity | 5.74 qts w/ filter (R2.8 crate engine only) | |
Horsepower | 161 hp @ 3,600 rpm (R2.8 crate engine only) | |
Torque | 310 lb-ft @ 1,800 rpm (R2.8 crate engine only) | |
Engine Weight | 503 lbs | |
Engine Dimensions | Length | 25.1 inches |
Width | 25.0 inches | |
Height | 28.0 inches |