PY8W10100A Genuine Mazda Engine Cylinder Head

Description

The PY8W10100A is a genuine Mazda engine cylinder head designed for select 2016–2025 models featuring the 2.5L SKYACTIV turbocharged gasoline engine without cylinder deactivation. As a major part of the engine's upper assembly, it houses the valve operating components and provides precisely arranged passages for combustion gases, engine oil, and coolant.

Vehicle Compatibility

General Specifications

Product Features

The PY8W10100A Mazda engine cylinder head is manufactured to accommodate the original cylinder block design and valve system arrangement of compatible turbocharged powertrains:

• Forms the combustion chamber roof above the engine cylinders
• Designed specifically for compatible Mazda 2.5L SKYACTIV turbocharged applications
• Provides machined openings for the designated intake and exhaust valves
• Supports correct positioning of the factory valvetrain and related components
• Routes coolant through internal passages to manage cylinder head temperatures
• Includes oil galleries serving the corresponding upper engine lubrication components
• Matches non-hybrid engine configurations that do not use cylinder deactivation

Application Notes

The PY8W10100A is intended for select 2016–2025 Mazda 6, CX-30, CX-5, CX-50, and CX-9 vehicles fitted with the appropriate 2.5L SKYACTIV turbocharged engine without cylinder deactivation. Before assembly, check the cylinder block interface, valve hardware compatibility, lubrication passages, cooling connections, and specified sealing materials.

Always verify the vehicle VIN, engine variant, original cylinder head identification, cylinder deactivation specifications, and required installation components before installation.