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Old 12-22-2007, 07:48 PM
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Join Date: Sep 2007
Location: South Central Kansas
Posts: 1,858

Default Cummins 6.7L Technical Specifications

6.7L 107mm bore x 124mm stroke
High swirl (2.4 DCS) combustion system
17.2:1 Compression ratio
Machined crankshaft counter weights
Viscous vibration damper

Air Handling
VGT – sliding nozzle (16 vane to eliminate turbine blade pass whistle)
Cooled EGR with cold-side EGR valve
Air inlet throttle
EGR cooler bypass
CCV with coalescing filter

Oil system
Tested with low ash oil API CJ4 (PC10)
Drain interval – 7500 miles
Total capacity – 13 qts on initial fill
Sump capacity – 9 qts low, 11 qts high
Typical oil change capacity – 12 qts
Dump to sump to provide oil pressure quicker
Constrained layer oil pan to reduce transmitted noise

Fuel system
Bosch 3rd generation common rail system
7 micron spin on filter
Tested with ultra low sulfur fuel – 15 ppm
Approved for bio-diesel fuel

Cooling system
Molded composite impeller for improved coolant flow

CM2100 ECM
Double the CPU processing speed (40 to 80 MHz)
40% increase in memory

Constrained layer oil pan
Over running alternator pulley (eliminate shut down squeal)
Intake silencer
Machined crankshaft counter weights
Combustion system (multi injection events)
Block shields
Pulleys modified to reduce ‘speaker’ effect
Stuffer between transmission adapter and pan
Viscous vibration damper

Availability____ Opt.—2500, 3500; available Jan. 1, 2007
Type and Description____Six-cylinder, inline, liquid-cooled, turbocharged, intercooled
Displacement____408 cu. in. (6690 cu. cm)
Bore x Stroke____4.21 x 4.88 (107 x 124)
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 bhp (261 kW) @ 3,000 rpm
Torque (SAE net)____650 lb.-ft. (881 N•m) @ 1,500 rpm w/6-spd. automatic; 610 lb.-ft. (827 N•m) @ 1,400 rpm w/6-spd. manual
Maximum High-idle Engine Speed____3,500 rpm
Fuel Requirement____Ultra Low Sulfur Diesel
Oil Capacity____12 qt. (11.3L) with filter
Coolant Capacity____29.5 qt. (28.0L)
Emission Controls____Exhaust after-treatment systems and internal engine features

2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10
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