Multiquip 12915549801 Thermostat 55H 4TNV84T-DSA - OEM Replacement Part

This thermostat regulates coolant temperature in the 4TNV84T-DSA engine, opening at 55°C (131°F) to maintain optimal operating temperature and prevent overheating in demanding trowel applications. A properly functioning thermostat is critical for engine longevity—failure symptoms include slow warm-up times, engine overheating, or temperature gauge fluctuations that can lead to costly damage if not addressed.

Designed specifically for Yanmar 4TNV84T-DSA engines used in Multiquip power trowels, this thermostat ensures precise temperature control during high-load finishing operations. Regular inspection during scheduled maintenance helps prevent unexpected downtime on the jobsite. Replace if you notice coolant leaks around the thermostat housing, erratic temperature readings, or if the engine runs too cool or too hot.

Compatible with the following Multiquip models:

• HTXD6i
• STXD6i

Genuine Multiquip OEM part, sold by an authorized dealer.