1994-1998 5.9L Cummins
The engine that gave us the P-pump, the ’94-’98 12-valve Cummins.
Engine Name: 6BT Cummins
Production Plant: Cummins Midrange Engine Plant (CMEP), Walesboro, Indiana
Configuration: Inline-six (I-6)
Bore: 4.02-inch
Stroke: 4.72-inch
Displacement: 359 ci (5.9L)
Compression Ratio: 17.0:1
Firing Order: 1-5-3-6-2-4
Block: Cast-iron, deep-skirt, parent bore
Head: Cast-iron, 12-valve, crossflow style with six head bolts per cylinder and induction-hardened valve seats
Crankshaft: Forged-steel with induction-hardened fillets and journals
Connecting Rods: Forged-steel, I-beam with 7/16-inch rod bolts
Pistons: Cast-aluminum with 1.57-inch diameter floating wrist pin, bowl redesigned and top ring land narrowed after ’93 engine
Valvetrain: Overhead valve (OHV), 2 valves per cylinder, single cam-in-block design with solid lifters, ductile-iron intake and exhaust rockers
Camshaft: Shot-peened, hardened tappet faces, lower-friction lobes
Injection System: Mechanical, direct injection
Injection Pump: Bosch P7100, inline plunger style pump with six plungers
Injectors: Bosch pop-off pressure, 260 bar mechanical
Lift Pump: Mechanical, cam-driven
Aspiration: Turbocharged and intercooled
Intake: Cast-aluminum manifold
Turbo: Holset fixed geometry and wastegated WH1C (’94), Holset HX35W fixed geometry and wastegated (’95-‘98)
Peak Boost: 21-22 psi
Intercooler: Air to air
Emissions Equipment: Catalytic converter (’94.5-‘98), exhaust gas recirculation (EGR) (’96-’98 California models)
Horsepower: 160 hp at 2,500 rpm with automatic transmission (’94-’95), 175 hp at 2,500 rpm with manual transmission (’94-‘95), 180 hp at 2,600 rpm with automatic transmission (’96-‘98), 215 hp at 2,600 rpm with manual transmission (’96-‘98)
Torque: 400 lb-ft at 1,700 rpm with automatic transmission (’94-‘95), 420 lb-ft at 1,600 rpm with manual transmission (’94-‘95), 420 lb-ft with automatic transmission (’96-‘98), 440 lb-ft at 1,600 rpm with manual transmission (’96-‘98)
Governed Speed: 2,700 rpm
Available Transmissions: NV4500 five-speed manual, 47RH four-speed automatic (’94-‘95), 47RE four-speed automatic (’96-‘98)
