Good used Water Supply Housing, houses the thermostat. It is responsible for helping to circulating coolant throughout the engine to maintain proper operating temperatures. Used on trucks and International buses.

OEM # 1841983C2, 18419831C1, coolant port seal – 1841479C1, 1841479, plug – 1841846C1, thermostat -053-06 or 5WK90612

30W-1841983-STK