Paccar MX13 Cylinder Head 2019-2022: OEM 965956

High-Integrity Cylinder Head for PACCAR MX-13 Engines (2019–2022)

What is it?
The Paccar MX13 Cylinder Head (2019–2022), identified by OEM part number 965956, is a major engine component engineered for PACCAR MX-13 diesel engines built between 2019 and 2022. The cylinder head sits atop the engine block and forms the combustion chamber, supporting valve operation, fuel combustion, and the sealing of coolant and oil passages — all essential to efficient engine function.

Why choose this Cylinder Head?
This cylinder head is manufactured to match PACCAR’s original specifications for the MX-13 platform, ensuring precise fitment and dependable integration with associated components such as valves, camshafts, injectors, and gaskets. When a cylinder head is worn, cracked, or out of specification, it can lead to compression loss, overheating, or oil/coolant leakage, which negatively affects engine behavior and long-term durability. Choosing the correct OEM-specified cylinder head helps preserve core engine integrity and dependable operation.

Key Benefits
✅ Engineered specifically for PACCAR MX-13 engines (2019–2022)
✅ Supports proper combustion chamber sealing and valve dynamics
✅ Helps maintain correct coolant and oil passage integrity
✅ Direct replacement — no modifications required
✅ Built to handle heavy-duty thermal and mechanical loads

Applications
This cylinder head is ideal for medium- and heavy-duty trucks and commercial vehicles powered by PACCAR MX-13 engines built between 2019 and 2022. Typical uses include long-haul tractors, regional freight rigs, vocational fleets, and other work platforms where engine durability and consistent combustion are essential to daily performance.

Installation Notes
Before servicing, ensure the engine is cool and disconnect the battery. Remove necessary components such as the intake/exhaust manifolds, valve train, and related hardware to gain access. After removing the old head, thoroughly clean and inspect the block surface and bolt threads. Install the replacement cylinder head with a new head gasket and torque head bolts to the manufacturer’s specifications in the correct sequence. Reassemble all components and refill fluids before confirming proper system operation and clearing any related codes.

Final Thoughts
If your PACCAR MX-13 engine is showing signs of compression issues, persistent overheating, or coolant/oil cross-contamination, replacing the cylinder head with the correct OEM-specified unit can help restore proper mechanical sealing and combustion dynamics. The Paccar MX13 Cylinder Head (OEM 965956) plays a foundational role in maintaining engine reliability and performance across demanding duty cycles.