Cylinder Head for Cummins K38 K50 QSK19 Diesel 3081065 3646323 3646324 3811985

Cylinder Head for Cummins K38 K50 QSK19 Diesel

This cylinder head fits Cummins K38, K50, and QSK19 diesel engines and seals the combustion chamber while supporting the valvetrain, with OEM cross-references 3081065, 3646323, 3646324, and 3811985.

Overview

This cylinder head is a direct-fit replacement for Cummins K38, K50, and QSK19 diesel engines, providing the structural base for valves, injectors, and combustion sealing. It restores compression integrity and valvetrain function on engines due for top-end service. Built for mechanics and fleet operators servicing heavy industrial power plants.

Built For Performance

• Cast to match Cummins K38, K50, and QSK19 head geometry
• Machined deck surface for reliable head gasket sealing
• Precision valve guide and seat bores for correct valvetrain alignment
• Cross-referenced to OEM numbers 3081065, 3646323, 3646324, and 3811985
• Designed for heavy-duty diesel compression loads

Fits These Machines

• for Cummins K38 diesel engines
• for Cummins K50 diesel engines
• for Cummins QSK19 diesel engines

On-The-Job Use

• Top-end rebuilds on industrial generator sets
• Marine and locomotive engine service
• Heavy equipment engine overhaul programs
• Fleet maintenance for high-hour diesel power units

Specs At A Glance

Good To Know

Q: Do I need new head bolts with this cylinder head? A: Many diesel cylinder head installations call for new torque-to-yield fasteners, so check the service manual for your engine before reuse. Q: Is machining required before installation? A: Inspect the deck and valve seats and confirm flatness per the Cummins service specification before assembly to avoid sealing issues.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.