1998.5-2002 5.9L Cummins
Introduction of the 24-valve cylinder head and electronically controlled VP44.
Engine Name: 5.9L ISB Cummins (24-valve)
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: 16.3:1 (’98.5-’02 standard output), 17.2:1 (’01-’02 high output)
Firing Order: 1-5-3-6-2-4
Block: Cast-iron, deep-skirt, parent bore crankcase with higher capacity (and higher pressure) oil pump
Head: Cast-iron, 24-valve, crossflow style with six 12mm diameter head bolts per cylinder and one-piece valve cover with reusable gasket
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 to match central location of fuel injectors
Valvetrain: Overhead valve (OHV), 4 valves per cylinder, single cam-in-block design with solid lifters, ductile-iron intake and exhaust rockers
Camshaft: Shot-peened, hardened tappet faces and wider, lower-friction lobes
Injection System: Electronic over mechanical, direct injection
Injection Pump: Electronically controlled Bosch VP44 with integrated ECU, rotary/distributor style, 3-plunger, gear-driven at ½ engine speed and utilizing an offset keyway
Injectors: Bosch mechanical, pop-off pressure, 310 bar
Lift Pump: Electric, engine-mounted (initially)
Aspiration: Turbocharged and intercooled
Intake: Cast-aluminum manifold
Turbo: Holset HX35W fixed geometry with internal wastegate (’98.5-’02 manual transmission) (’98.5-’00 auto transmission) (’01-’02 high output), HY35W fixed geometry with internal wastegate (’01-’02 auto transmission)
Peak Boost: 20-22 psi
Intercooler: Air to air
Horsepower: 215 hp at 2,700 rpm with automatic transmission (’98.5-’99), 235 hp at 2,700 rpm with manual transmission (’98.5-’02 standard output), 235 hp at 2,700 rpm with automatic transmission (’00-‘02), 245 hp at 2,700 rpm with manual transmission (’01-’02 high output)
Torque: 420 lb-ft at 1,600 rpm with automatic transmission (’98.5-‘99), 460 lb-ft at 1,600 rpm with manual transmission (’98.5-’02 standard output), 460 lb-ft at 1,600 rpm with automatic transmission (’00-‘02), 505 lb-ft at 1,600 rpm with manual transmission (’01-’02 high output)
Governed Speed: 3,200 rpm
Available Transmissions: NV4500 five-speed manual (’98.5-’02 standard output), 47RE four-speed automatic (’98.5-‘02), NV5600 six-speed manual (’01-’02 high output)
