Engine Coolant Control Valve – Mazda (PYFA-15-16ZB)

Engine Coolant Control Valve is a lubricant or hydraulic fluid built to a manufacturer specification rather than to a generic grade. The specification is what determines friction modifier content and cold-flow behaviour.

Change the Coolant Control Valve when the fluid has darkened or smells burnt, when a repair has exposed the circuit, or when the specified interval has passed. Topping up a different specification is worse than running low.

The Coolant Control Valve in this listing carries part number PYFA-15-16ZB and sits in the Reservoirs & Thermostats category. The number stamped on the original part is the only reliable cross-reference.

This is MAZDA dealer-sourced stock rather than an equivalent, so the number on the Coolant Control Valve traces straight back to the manufacturer.