1996-1998 Ram / Cummins B Horsepower and Torque Curves

 
HP Curves From the Cummins web site

Power (SAE net) 215 bhp @ 2600 rpm - 49 state manual 180 bhp @ 2500 rpm - all auto. trans 180 bhp @ 2500 rpm - CA man. trans Torque (SAE net) 440 lb-ft @ 1600 rpm - 49 state manual 420 lb-ft @ 1500 rpm - all auto. trans 420 lb-ft @ 1500 rpm - CA man. trans Compression Ratio: 17.5:1
	49 State Manual	Auto, CA Manual
BHP/Liter: 29.7 - man. trans.; 27.1 - auto. trans. Max. Engine Speed (Governed Speed*) : 2700 rpm Max. No Load High Idle Engine Speed: 3000 RPM Emission Controls: All: Oxidation catalyst,   CA: EGR

HP Curves From the 1997 Dodge product literature

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• Engine: 5.9-Liter, OHV, Diesel Six-Cylinder
• Type & Description: Six cylinder, in line, liquid cooled, turbocharged, intercooled
• Displacement: 359 cu. in. (5.9 L)
• Bore x Stroke: 4.02 x 4.72 (102.1 x 119.9)
• Valve System: OHV, 12 valves, solid sliding tappet lifter/followers
• Valve Adjustment (engine cold)
  • Intake = 0.010"        Exhaust = 0.020"
  • Adjustment interval - 24,000 miles
• Fuel Injection: High-pressure direct injection, mechanical
• Fuel Pressure: 18-24 psi at idle, 28-36 at 2000 rpm with no load.
• Construction: Cast iron block & head
• Fuel Requirement: Diesel #1 or #2
• Oil Capacity: 11 qt. (10.4 L) with filter
• Oil Flow Rate: 20 GPM
• Coolant Capacity: 24 qt. (22.7 L)
• Emission Controls: Engine modifications, oxidation catalyst (after 1/1/94)
• Alternator: 136 A
• Battery: Maintenance-free, dual 750 CCA

*The "governed speed" is the highest speed that produces useable power. Above the governed speed, engine power drops VERY quickly. Other interesting engine speeds:

• Destructive torsional harmonic resonance occurs at 4100 RPM
• Crank and rods fail at 5400 RPM (if you make it through 4100 RPM)

• Diesel no 2 minimum cetane rating
• 40 for temp above 32 degrees F
• 45 for temp below 32 degrees F
• 45 with prolonged heavy loads (towing, max GVWR, etc)
• Acceptable emergency alternative fuels for 1994 & later 12 Valve trucks:
• #1 and #2 Diesel
• 1K and 2K Kerosene
• Jet -A,  Jet A-1,  JP-5,  JP-8
• NOT Acceptable
• Jet-B,  JP-4,  Cite

The stock 12 cm housing on 94+ engines is OK up to about 240 HP, beyond which the small housing restricts the exhaust and raises EGT. A 16 cm housing provides enough low speed boost for an enhanced engine, and the exhaust runs cooler at high speed.

Frequently Used Part Numbers			1996	1997-1998
Locations of parts and sensors on engine
Fuel Filter	Mopar		4741689	04883963AB*
	Cummins		3923108	3931476*
	Fleetguard		FS1253	FS19522*
	Fleetguard Stratapore		FS19519	FS19598*
Fuel Strainer	Mopar		04762962
	Cummins		3847102
	FleetGuard		3845400-S
Fuel Heater top quad ring gasket	FleetGuard		3834185-S
Fuel Heater Element (includes 3834185-S)	FleetGuard		3907766-S
Fuel Heater Element Cable Harness	FleetGuard		3843722-S
Oil Filter*	Mopar	Paper	05016547AC
	Cummins	Paper	3942470
	Cummins	Microglass	3865405
	Cummins	Stratapore
	Fleetguard	Paper	LF3959
	Fleetguard	Microglass	LF3552
	Fleetguard	Stratapore	LF3894
Oil Plug	Mopar
	Cummins		3924147
Oil Plug Washer	Mopar		4882049
	Cummins		3920773
Oil Filler Cap	Cummins		3914136
Oil Filler Tube or Cap gasket	Cummins		3902363
Oil Filler Tube	Cummins		3914738
Valve Cover Gasket Set	Cummins		3902666
Individual Gray (Marine) Gasket	Cummins		3930906
Individual Valve Cover O-Ring	Cummins		3910824
Front Crankshaft Seal	Cummins		3804899
Front Gear Case Cover Gasket	Cummins		3918673
Dowel Pin (timing gear case)	Mopar		04429257
	Cummins		3900257
KDP tab bolt (longer)	Any source		8mm x 1.25 x 25mm
Silver Three Bond RTV Silicone Adhesive/Sealant	Cummins		3823494
Rear Main Seal	Cummins		3934486
Air Filter	Mopar w/ foam		4728406
	Cummins		3097074
	Fleetguard w/ foam		AF25541
Accessory Belt	Dayco		5080810
	Goodyear		4080810
Belt Tensioner	Cummins		3912254
Throttle Position Sensor	Cummins		3930318
	Mopar		4874412 or 3930318
	Borg Warner		EC3061
Engine Speed Sensor	Mopar		4746691
	Cummins		3924432
Oil Pressure Sensor	Cummins		3923200
Manifold Temp Sensor	Cummins		3918461
Engine Temp Sensor	Cummins		3920363
Fuel /Water Sensor	Mopar		04429116	NA
	Fleetguard		3831852-S	NA
Thermostat*	Mopar		05014568AA
	Cummins		3928499
Thermostat sealing rings (gaskets)	Cummins		3925466 & 3927305
Lower Radiator Hose	Cummins		71715
Upper Radiator Hose	Cummins		71716
Water Pump	Cummins		3802357
Block Heater	Cummins
Block Heater replacement cord	Cummins		3923050
Throttle Cable	Mopar		4897406AA
Throttle Rod End RH	Cummins		3932365
Throttle Rod End LH	Cummins		3932319
Throttle Tension Spring	Cummins		3923058
Throttle Torsion Spring	Cummins		3925365
Fuel Shutdown Relay	Mopar		56007067
Fuel Shutdown Solenoid	Cummins		3923201
Fuel Banjo Bolt Washer (fuel Filter)	Cummins		3918192
Fuel Banjo Bolt Washer (Injector Pump)	Cummins		3912887
Fuel Lift Pump	Cummins		3936316
Inj Pump Overflow valve	Mopar		04883838AA
	Cummins		3932096
215 HP torque plate	Bosch		24287
AFC Diaphragm	Bosch		2 420 503 019
Intake manifold - 49 State Non EGR	Cummins		3931516
Cat Converter Test Pipe	Mopar		52019170AB
60 Pound Exhaust Spring	Cummins		3916691
Engine Paint (titanium black)	Cummins		3824514
Catalytic Converter test pipe	Mopar		52019170AB
* LF3959 superseded LF3935, LF3885, LF3949 for all model years. *Cummins 3942470 supersedes 3931470. *Mopar 5016547AC - replaced 5016547AB *LF3984 has been upgraded without a number change. *FS19598, which has integral rubber seals, replaced FS19528 (which had separate seals) * A 2 micron fuel filter (04883963AB) replaced the 7 micron filter (04883963AA) for ISB applications. Acceptable versions of the 7 micron filter for 12 valve engines include: Raycor R33FG01 Fleetguard FS19522 Dodge 04883963AA - production stopped Acceptable versions of the 2 micron filter for 12 and 24 valve engines include: Raycor R33FG03 Fleetguard FS19598 Fleetguard FS19528 Dodge 04883963AB - superseded the AA version. * Cummins Thermostat: A series of revised part numbers has been issued - check with a Cummins parts department for the latest. P/N 3934373 eliminates temperature fluctuation but engine warmup is slower and the operating temperature is lower than with previous t-stats. * Lift Pump 3925709 has been replaced by a new design PN 3936316

 

Engine Manual Numbers
Engine Parts Manual	1996 Cummins	3672096
	1997 Cummins	3672097
	1998 Cummins	3672106
Operation & Maint man	12V Cummins	3810205
Engine Service Shop Manual	1991-1994	3666017
Troubleshooting and repair	1991-1994	3666087
Cummins engine oil recommendations	12V Cummins	3810340-01
Cummins Engine Fuel recommendations	12V Cummins	3379001-05
Fleetguard Cooling System Maintenance	12V Cummins	3387910
Injection System Information	12V Cummins	3666037-04

Thanks to CJ Johansson for assisting with the Fuel heater/strainer/wiring/gasket part numbers.

Last update to this page: August 20, 2003