Thermostat 71°C – Fits Yanmar Marine 2GM/3GM Series (Replaces 121750-49800) 5-100HP BCGB 032620

BCGB 032620

confirming a steady stream from the cooling system tell-tale

Inspect the oil for any milky appearance

struggles to get on a plane

Release Tension: Locate the alternator or tensioner pulley

Thermostat 71°C – Fits Yanmar Marine 2GM/3GM Series (Replaces 121750-49800) 5-100HP BCGB 032620Product Details This genuine quality Thermostat 71C (159. 8F) Fits Yanmar Marine 2GM 3GM Series is designed as a direct replacement for small Yanmar marine diesel engines. It is engineered for models in the 2GM and 3GM series, which are typically 830 HP, 4 stroke engines manufactured through the mid 2000s, ensuring proper engine cooling performance. This part directly replaces Yanmar P N 121750 49800 and is also referenced by aftermarket numbers from