The STIHL 040 N Waterpump is a very rare version of the 040 chainsaw.
There’s basically no information about it online, and only two or three mentions.
Unfortunately I’ve got nothing more to add here, other than sharing some more images.
Here’s an 040 N from Tom Gray’s collection.
Chris Goldman took this next picture during his visit to Wayne’s Chainsaw Museum.
And the following pictures were shared by Wayne Sutton on the Chainsaw Collectors Forum.
It’s a very usual attachment indeed!
