What is a pre-heat pump in your generator?
A pre-heating pump is a heater and a pump at the same time its main purpose is to heat your jacket water to give your generator better efficiency.
Genset Pre-heat Pump Exploded View and parts.
Legend:
1: coil terminal cover
2: coil terminal box
3: coil
4: replacement element
5: O-ring (Viton 75 durometer brown or silicone 70 durometer red)
6: Replacement tank
7: Mounting kit
8: check valve or NRV
9: temperature sensing unit
10: pump terminal box
A friendly reminder as always wear a piece of protective equipment and use tool and chemical away from children reach and always be positive stay safe, God Bless.
