Thread size and pitch

[loh]

Looking for the correct thread size and pitch for a Troy-Built pressure washer "high pressure outlet". Not the hose end put the thread in the pump. Close to 3/8" NPT or NST but i think it is metric?? Any info appreciated.

 

[leroy in ne]

Possibly BSP straight or BSTP tapered. these are British Standard Pipe also used in metric applications 3/8 are 19 threads per inch not 18 as are American pipe threads. Referencing Machinrey's Handbook 24th Edition. Hope this gives you a starting point. Leroy

 

[Ellis Kinney]

Watch Wes Work is a you tube presenter. He once did an entire episode on various threads and explained it very well. It might help you to reference his web site and look it up. Ellis

 

[JD Dave]

You need a thread gauge to accurately measure the diameter and thread pitch of the bolts/screws that you removed. Guessing will not work and if you use the wrong part, you'll ruin the pump housing.

 

[drsportster]

I don't think the thread gauge is going to tell a tapered thread You need fittings chart maybe

 

[Mule Meat]

First thing you need to do is stop looking for Troy Bilt pressure washer pump parts. Troy Bilt does not make pumps.

You need to look at the brand of the pump (Comet, Cat etc), then model and serial number. Once you have that information from the tag on the pump. Look for parts that fit that pump.

 

[T.R.K.]

I am thinking most of the Troybilt pressure washer pumps I have seen said 'Riverbi' or some thing like that on them. I think made in Italy.
Why do you need to know the thread? If there is much damage to the pump body itself, you probably need a new pump.