Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  


Recommended Posts


is there a chart listing piston sizes and their applications?

I have a piston that is NOS but the box disintergrated so I have no part number. it is about 3 1/16th inch, noticeably larger than the model 19 piston, which is 3 inch

Share this post

Link to post
Share on other sites


I looked in the model 19 and model 23D parts lists and both use the 294676 piston assembly.

the 23D is 9hp and the 243xxx is 10 hp. I thought, probably erroneously, that the 243xxx got that extra 1hp from a longer stroke.

was it from a bigger bore instead? and if that is the case, is the rod different also?

I have a 9hp landlord that may get a motor overhaul (but not this year). now's the time to start gathering parts

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Who's Online (See full list)

    • tamurmueen
    • bowhunt4life
    • BLT
  • Today's Birthdays

    1. Carchief
      (57 years old)
    2. Geoff
      (56 years old)
    3. mohrds
      (51 years old)
  • Recent Status Updates

    • SonOfCreepfeed


      Thinkin' about this old girl.

      · 2 replies
    • Dean McFadden

      Dean McFadden

      Good morning peeps! I’m always searching for helpful information with my AC collection. Hope to find out new information and pass on my own experience in restoration. Here are some pics of my babies. I’m still looking for front rims for the 410 so yesterday I put the 310 wheels on took it for a drive. Working pretty good but still needs some carb work. Gotta get the 310 running next. Have a great day!😁

      · 1 reply
  • Adverts