Note the orientation of the old part
The other hose may be near the end of its service life and could fail soon after the first replacement
Product Type Thermostat Kit Installation Direct OEM Replacement Temperature Rating 60°C (140°F) Operating Temperature 60°C (140°F) opening temperature Weight 0
2 ounces) Warranty 1 Year Limited Warranty What’s in the Box
Reconnect the water sensor
Sea Water Pump – Fits Yanmar 2GM20/3GM30 Series (Replaces 128377-42500, 128397-42500) 27HP Note the orientation of theProduct Details This is a direct replacement Sea Water Pump designed specifically for Yanmar marine diesel engines in the GM YEU series (European built models from 19962004). It ensures reliable raw water circulation to maintain optimal engine temperature. This part is a direct interchange for Yanmar part numbers 128377 42500, 128397 42500, 128990 42510, and Johnson Pump numbers 10 24509 01, 10 24509 02, 10 13337 01, 10 13492 01, and 10 13328 03.