This is a Mondello balancer I was running on the 400G in my 442. I believe Mondello's PN for this was "8080" and they sold them for a number of years. I installed this around 2016 and ran it until last year. No problems. It's degreed as can be seen in the photos. $70 plus shipping. My zip code is 28724 and the part weighs close to 10lb if you want to estimate the shipping.