5.9L Vs. 6.7L Cummins Diesel Engines - Cummins Vs. Cummins

5.9L vs. 6.7L Cummins Specifications

Engine: 5.9-Liter H.O.Cummins Turbo Diesel I-6
Type and Description: Six-cylinder, inline, liquid-cooled, turbocharged,intercooled
Displacement: 359 ci
Bore x Stroke: 4.02 x 4.72 inches (102.1 x 119.9mm)
Valve System: OHV, 24 valves, solid lifters
Fuel Injection:Electronic high-pressure common rail
Construction: Cast-iron block and head
Compression Ratio: 17.2:1
Power (SAE net): 325 hp at 2,900 rpm
Torque (SAE net): 610 lb-ft at 1,600 rpm
Maximum High-Idle Engine Speed:3,500 rpm
Fuel Requirement: Diesel
Oil Capacity: 12 quarts with filter
Coolant Capacity: 32.7 quarts
Emission Controls: Oxidation catalytic converter and internal engine features

Engine: 6.7-Liter H.O.Cummins Turbo Diesel I-6
Type and Description: Six-cylinder, inline, liquid-cooled, turbocharged, intercooled
Displacement: 408 ci
Bore x Stroke: 4.21 x 4.88 inches(107 x 124mm)
Valve System: OHV, 24 valves, solid lifters
Fuel Injection:Electronic high-pressure common rail
Construction: Cast-iron block and head
Compression Ratio: 17.3:1
Power (SAE net): 350 hp at 3,013 rpm
Torque (SAE net): 650 lb-ft at 1,500 rpm
Maximum High-idle Engine Speed:3,500 rpm
Fuel Requirement:Ultra Low Sulfur Diesel
Oil Capacity: 12 quarts with filter
Coolant Capacity: 29.5 quarts
Emission Controls: Exhaust catalyst and diesel particulate filter, EGR, and internal engine features

The Edge Juice used factory...        read full caption The Edge Juice used factory weatherproof connectors to interrupt the signal to the injection system.	The fuse tap used for the...        read full caption The fuse tap used for the Juice means that no wires need to be cut or spliced to provide power to the unit.	The owner of the 5.9L Dodge...        read full caption The owner of the 5.9L Dodge chose to mount his Attitude monitor at the bottom of the center stack for a more discrete look than mounting the monitor on the pillar.
The Juice modules were cleanly...        read full caption The Juice modules were cleanly mounted under the hood of both trucks on top of the fuse panel. The wires for the turbo timers and Attitude monitors were routed through existing grommets in the firewall.	The most difficult part of...        read full caption The most difficult part of the Juice installation was inserting the pyrometer probe in the exhaust manifold to measure exhaust gas temperatures. This was far easier on the 5.9L (shown) than the 6.7L engine.	The soot coming out of the...        read full caption The soot coming out of the weep holes at the bottom of the diesel particulate filter is visible in this photo. None of this soot makes its way to the tailpipe with the DPF in place.
The difference in quality...        read full caption The difference in quality between the Silverline exhaust and the factory pieces was immediately apparent. Larger-diameter tubing, mandrel bends, and stainless steel construction meant that this was the last exhaust we'll ever need to buy.	The Silverline 5.9L exhaust...        read full caption The Silverline 5.9L exhaust was a full 4 inches from the turbo back and fit perfectly. The 6.7L exhaust used larger 5-inch tubing that was a snug fit between the shock and spare tire.	It didn't add any power, but...        read full caption It didn't add any power, but the beveled stainless steel exhaust tips included with the Silverline exhaust systems added a touch of elegance to both Dodge Rams.
One of the details that sets...        read full caption One of the details that sets Silverline apart in the crowded exhaust market is its welded hangers. Many manufacturers offer one-size-fits-all U-bolt clamps instead of welded hangers in order to cut costs.	Mandrel bends allowed exhaust...        read full caption Mandrel bends allowed exhaust gases to flow smoothly and efficiently from the engine, and provided improved power and mileage on both trucks.