24V 5.9 Cummins Engine Parts for 1998.5-2002 Dodge Ram 2500/3500

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Engine Sealing & Block Components

Freeze plugs, oil pan bolt kits, and block-level sealing components for the 5.9L 24-valve Cummins. XDP's bolt-on side freeze plug kit (XD334) is a direct-fit replacement that eliminates the need to drive out the OEM press-fit plugs - a common source of coolant leaks on high-mileage 24V engines.

Oil System Components

Oil fill caps and piston oil squirters for the 24-valve 5.9L Cummins. Wehrli billet aluminum oil fill caps are a direct replacement for the factory plastic cap. XDP piston oil squirters (XD341) replace the factory squirters that supply oil to the piston undersides for cooling.

Cooling System

Thermostats for the 5.9L/6.7L Cummins. The Mishimoto low-temperature thermostat is a direct replacement that opens at a lower temperature than stock - reduces operating temperatures on modified or high-EGT trucks.

Rotating Assembly

Harmonic balancers for the 5.9L Cummins. The factory rubber-bonded harmonic balancer is a known weak point on high-mileage engines - the rubber bond separates and the outer ring spins independently, causing vibration and accessory belt issues. A quality replacement restores correct crankshaft vibration damping.

For fuel system, turbo, and performance upgrades, see all 24V 5.9 Cummins parts. For the earlier 12V 5.9 Cummins (1989-1998), visit the 12V parts collection.