The Cummins 5.9 liter engine is also known as the Cummins L1 230 horsepower engine. It was featured on the Dodge Ram from 1998 to 2003. The engine is a part of the Cummins B-series of diesel and industrial piston engines. The engine was available with the five-speed manual, five-speed automatic and four-speed automatic transmissions.
The bolts connecting the oil pan to the engine block had 15 ft. lbs of torque. The bolts connecting the oil pump to the engine block had 35 ft. lbs of torque, while the bolts connecting the oil pump cover to the oil pump had 10 ft. lbs of torque.
The bolts connecting the bell housing to the engine block had 50 ft. lbs of torque and the bolts connecting the cylinder head to the engine block had 70 ft. lbs of torque. The main cap bolts connecting the crankshaft to the engine block had 85 ft. lbs of torque, while the rear bearing seal retainer bolts had 30 ft. lbs of torque. Finally, the bolts connecting the water pump to the engine block had 30 ft. lbs of torque.
The bolts connecting the cylinder head to the engine block had 70 ft. lbs of torque, the bolts connecting the exhaust manifold had 30 ft. lbs of torque, and the bolts connecting the intake manifold to the cylinder head had 40 ft. lbs of torque. The bolts connecting the valve cover to the cylinder head had 3.33 ft. lbs of torque with the end bolt having 9 ft. lbs of torque. The shaft bracket bolts connecting the rocker arm shaft to the cylinder head had 25 ft. lbs of torque.
The 5.9L Cummins was a six cylinder four-cycle inline type engine. It used an overhead valve system (OHV) with a total of 24 valves and had an electronic fuel injection (EFI) system. The engine used diesel fuel and a solid sliding tappet lifter camshaft. The engine had a bore/stroke of 4.02/4.72 inches and a compression ratio of 16.3 to 1. Its aspiration was turbocharged and air cooled. The oil pan for the engine had a capacity of 2.5 gallons, or 10 quarts.
