Help ID old cylinder

[ptjeep]

I picked up this cylinder a while ago with some other saw parts and can’t seem to find what it fits. Any idea? It’s 52 mm.

 

[Woodslasher]

I believe its a P51 pioneer cylinder.

 

[Brent Adams]

Mahle tells me it might be Husqvarna?
Looks like someone May have cut a squish band into it. Maybe just the lighting. What do the ports look like?
Round flange for intake or flat with two bolt holes?

 

[805 McCulloch]

Another vote on for a P51
https://store.chainsawr.com/collections/all/products/pioneer-p51-chainsaw-cylinder-pn-507-431626-new

 

[pioneerguy600]

I believe its a P51 pioneer cylinder.

Bingo!

 

[HarleyT]

It has a sae bolt in it.

 

[pioneerguy600]

It has a sae bolt in it.

Decomp plug.

 

[HarleyT]

Yes, was addressing the possibility of it being a Husqvarna...

Of course, I have seen sae stuff torqued into metric holes....

 

[HarleyT]

I don't remember, was that old Canadian stuff American threads?

 

[Deleted member 117362]

Just google Mahle 431626, it's a p51, as said by others.

 

[HarleyT]

Just google Mahle 431626, it's a p51, as said by others.

That's cheating!!!

 

[farmguywithasaw]

Well when I was in school we were taught the metric system and fractions. Then in industry most is standard with some bastardized metric stuff so we are thoroughly confused. For example if you give me the outside temp in Fahrenheit I don’t know what you are saying. If you say your engine temp in Celsius means nothing to me

 

[pioneerguy600]

I don't remember, was that old Canadian stuff American threads?

Wasn`t metric, we were still using A.S. back then but now have both systems to deal with, my tool boxes doubled in size . Still prefer A.S. sizing but have adapted to metric somewhat.

 

[ptjeep]

Thanks guys , pioneer was my guess also but i forgot to mention that.