chain tensioner for Makita 2040 or Jet JWP15

Description

I parted out my JET JWP-15 thickness planer, which is a green colored Makita 2040 planer.  This was a 2-blade steel knife planer with a 15 3/4 inch (400 mm) cutting width.  I've had it for many years, although not heavily used.  One of the bushings for the feed rollers went out and took the roller and most of the rest of the roller tension parts with it.  I purchased a new roller and a new set of parts for that column and reassembled it.  I tried it a couple times then decided I didn't want to mess with trying to get it adjusted properly so I tore it apart.  I will be selling the used parts at auction at half of what Makita wants for new.  I'll be asking a bit more for the new parts.  I'm not selling any parts that I can see are damaged, but they have wear on them, like the used feed roller and the material rollers have a couple nicks in them etc.  The various parts for sale will be described in the individual listings, along with whether they are as good as new or older parts I removed from the planer.
Brand new chain tensioner.  Mine went out several years ago and I couldn't get a replacement because of a dock strike in California and they were sitting in customs because of it.  So the store ordered a couple more and I ended up getting all of them and didn't need them.  #51  When you could get them, they were .