Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  


Recommended Posts


I posted wrong on the 10/4. The engine on my B10 is a 23B. I have that info.

The engine on my B12 is a 300421. However I can't find the model # on it anywhere. The 23B has a tag on the side near the top, but not the 300421.

I want to get the repair manual for it from Briggs, but I don't know the proper #'s to enter. I used 300421, 0010, but don't know the last 2's.

Can anyone help me on this?

Thank you, Bob

Share this post

Link to post
Share on other sites

300421 is the model number.

Numbers should be stamped into the blower housing, right below the carb. You may have to do some scrapping to see them. Right at or just above the frame line.

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)

    • ParkerBarker
    • SmilinSam
  • 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