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Antique Miscellaneous Tractor: Lauson 20-40

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This picture shows a 1927 version. It featured a Beaver four-cylinder vertical, valve-in-head engine that was rated at 1,040 RPM. It was produced by the John Lauson Mfg. Co. of New Holstein, Wisconsin.

Lauson 20-40 Tractor

Do you have any comments or questions about this tractor? Ever use one? Know anyone who owned one? If so, please join in on the discussion below. Use the form for entering your comments.

Comments on this Tractor

Scott Blundell wrote on Friday, July 07, 2023 (PDT):
  • Not sure if this thread is still active, we have what we believe is a Lauson Beaver 16-32 that looks much like the picture above but it has a Nichols and Shepard data tag on it titled The Red River Special Line, the hand hole covers say Lauson Beaver, anyone know anything about this one.
    Les Benner wrote on Wednesday, December 01, 2010 (PST):
  • im looking for a samson line drive model D. if you know where i can look or find any info on one it would be appreciated. call 810 691 1464 or email bennerslesansha at thankyou
    mike coyer wrote on Wednesday, November 24, 2010 (PST):
  • My Neighbor has a John Lauson tractor 1925 I think. But the engine has been changed, has a Herules, he bought it that way. He would like to find a Beaver to get it closer to original. Give me a call if you know where one is 419-494-2444
    Betty Louise Rector wrote on Sunday, April 13, 2008 (PDT):
  • My Dad had two Lauson tractors--a4 cyndler and a 6 cyndler. I have driven them when I was very young--probably 6 yrs old. I had to brace my foot on the fender to turn it. The 4 is still in the family, but in sad condition. Parts have been stolen off it, and kids have shot their 22 s at it. My brothers sold the 6, and it went to Ark. I remember daddy farming with them, and how very slow they ran. These tractors have always been very dear in my memories. I am 76 years old.
    Lee Dodak wrote on Saturday, July 28, 2007 (PDT):
  • I have a 1919 15-30 Lauson completely restored I also have a 1926 20-35 Lauson I am restoring. Does anyone know the original gray color Thank you for any information.
    Jack Rhodes wrote on Tuesday, May 22, 2007 (PDT):
  • I have a 20-35 Lauson tractor with a Leroy engine. It is almost identical to the Beaver engine. I believe Leroy bought the Beaver engine works, they were both in Milwaukee.
    Robert wrote on Wednesday, December 21, 2005 (PST):
  • The tractor club I belong to has a 1917 Beaver-Lauson tractor. I realize the engine is the beaver part of the name. What I am trying to find out is the original colours the tractor would have been painted. The old girl runs great but we have not changed its antique rust colour as we do not know what colours to paint it. Also, any information on the availability of decals for it would be appreciated. Please email or answer through the forum.
    Dan Reilly wrote on Saturday, March 19, 2005 (PST):
  • I have a Beaver stationary engine(see photos on this sight at "Implement Photos") it was used to power a Chase saw mill I would like to know if its the same manufacture as all other leads to its origin have gone cold thank you Dan
    Dan Reilly wrote on Saturday, March 19, 2005 (PST):
  • I have a Beaver stationary engine(see photos on this sight at "Implement Photos") it was used to power a Chase saw mill I would like to know if its the same manufacture as all other leads to its origin have gone cold thank you Dan
    Ole Bekkedal wrote on Wednesday, October 02, 2002 (PDT):
  • In our collection we have a John Lauson tractor, model 15-25, serial number 230. It has been standing outdoors for decades, but the engine is running, and we have most of the parts. We have done some restoration, but need help with some details of the cabin. Does any one have one of those or know of one, where we could get some measures?
    Dan Hart wrote on Wednesday, January 09, 2002 (PST):
  • I have a 20-40 Thresherman's Special. I would like as much information as possible and a source for parts. Thanks a lot. Sincerely, Dan
    gaylord DuRee wrote on Wednesday, August 22, 2001 (PDT):
  • looking for a beaver engine to put in mine,any help appreciated
    Richard De Rosa wrote on Friday, May 18, 2001 (PDT):
  • I have a John Lauson Hit and Miss engine that I would like to repair. I need a manual. Its a Model w2609 ( The Lauson) its 1 1/2 Horse power. I would appreciate any info. you may have. Thank you
    chris mitchell wrote on Wednesday, October 11, 2000 (PDT):
    Oscar wrote on Wednesday, July 07, 1999 (PDT):
  • Please send as much info on the Lauson Beaver. Model number 2166-A. Thnak you, Oscar

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