Thats right, a Manual Cam Chain Tensioner- New in Box/package. $35 shipped! I have an extra- read on, I'll explain... Sold by MC Motoparts - is the branding on the package. You can clearly see the letters 'APE' engraved/stamped on the base piece as well! I think it's made at the same factory and re-branded. Here's the package: And the 'Scan for Installation'? You can research it, BUT, you don't have to remove the Valve Cover to install these properly. I had 2 x K5 Liter bikes. I installed one of them on my current bike, that I ride- it works well- the MCCT really helped get rid of cam chain noise, while improving performance some with a can chain that is to spec. I sold the other K5 Liter bike before I got the chance to install this one, the extra one. $35 shipped to the '48' LMK * Edit- I think this fits a few other engines/years as well. Check the APE website and part # for the one that APE markets. One of the best 'mods' I've done to my motor!