ENGINE COOLANT DRAIN VALVE (Hyster HY12878)

A worn coolant drain valve can lead to gradual coolant loss and potential overheating. This aftermarket replacement part references Hyster catalog number HY12878. The valve serves as a controlled outlet for draining engine coolant during service intervals. Its mechanical function relies on a simple turn-to-open design that allows fluid to flow when opened. A stuck or leaking valve may cause coolant to drip continuously, resulting in low coolant levels and possible engine temperature rise. Verify the serial number or application, then call (562) 693-7748. This part is listed as an engine component and is not a genuine Hyster item.

Part number variants: HY12878, hy12878