Ariens manufacture date

[roughrider1950]

Hi, I'm new to this forum and need to find out the manufacture date on my Ariens 21" self propelled mower. The Model # is 911020 and the Serial # is 013972. If anyone would know what the carburetor # is on this 5HP Tecumseh engine it would be much appreciated. Thank you

 

[mechanic mark]

http://apache.ariens.com/manuals/011423C.pdf

 

[roughrider1950]

Thanks for the reply. This is helping narrow everything down.