M18 Water Pump And Hose Size

[Loose Ends]

Looks like my water pump has given out after 34 years.
Any recommendations on a supplier?
Forgot to measure the hose sizes shown in the picture.
All help appreciated.
Bill

 

[Skipper]

https://forums.sailboatowners.com/i...ubota-experts-water-pump.169680/#post-1193777

If you threw out the hoses, take the new or old pump to the parts store to match hose. Or there might be specs online via the above link.

 

[Ward H]

Be aware that the bronze elbow may actually be a reducer. On my MP25-XP there is a formed 1" 90 degree hose coming off the water pump to the bronze elbow. The other end of the elbow takes a 7/8" hose. Blowing up the photo showing new hoses in Skipper's link, the second hose is 7/8".
So you likely need either 1" or 7/8" hose for that short piece.
Hopefully this helps.
Best to do as Skipper suggested unless you are trying to get your parts together for just one boat visit.

 

[Loose Ends]

Skipper, thanks for the link. I was looking at the Kumar Bros site for a Z 500 pump. I see that it is much cheaper than the M18 pump on their marine site.
What size hoses did you purchase?
Ward H. Thanks for confirming the 1” elbow. That is what I thought I measured on the boat, but I thought I made a mistake

 

[Stu Jackson]

Thanks for confirming the 1” elbow. That is what I thought I measured on the boat, but I thought I made a mistake

That elbow on many Universals is the 1" to 7/8" variety. I learned of a Toyota replacement part for $11 instead of $42.

Engine Coolant Pump Hose 101 - Toyota Part instead of Universal Pricing
http://c34.org/bbs/index.php/topic,7084.msg47677.html#msg47677

 

[Loose Ends]

Thank you