Made for specific Purex applications, this part is useful when pumps, filters, heaters, or valves depend on a clean original-style fit. The piezo igniter assembly is used on Minimax/Minimax Plus Piezo Igniter Assembly applications and supports manual ignition by generating spark for compatible heater systems. It is a useful replacement when the existing part is cracked, corroded, stripped, distorted, leaking, missing, or no longer holding the correct operating position.This type of service part is ideal for repairing a known failure point while retaining the surrounding housing, valve, heater, or filter components. This part is best suited for precise repairs where the matching OEM-style part number, 75459, is the main guide for compatibility. Compare the old part, equipment label, and exploded diagram so the replacement matches the exact Purex configuration.