water pump hoses

[peterbud]

i have a Oberthorp 202-908 waterpump and want to replace the hoses from both the thru hull and back to the heat exchanger. i measured them but forgot to check the size. the pump is on a universal M3 20 engine. if anyone can help me with the size I would appreciate it.

thanks
peterbud

 

[JoeWhite]

Peterbud, there are adapters on the input and output side of the pump. On mine input is 1/2 inch and output is 5/8 inch. Yours may be different.

 

[Stu Jackson]

I've been using Trident metal reinforced hose.

Good point about the sizes, I think mine are different like that, too.

 

[peterbud]

I've been using Trident metal reinforced hose.

Good point about the sizes, I think mine are different like that, too.

i will need to measure them next time I am going to be on the boat .