It is a red unit and the sticker on the top cover has model 623G on it but there are not metal model tags I can find on itICS has sourced powerheads from different manufacturers. The 633GC is an Olympyk 999/Efco 199. They also use the Olympyk 981 powerhead on some of the newer units. I think the 660GC is the Olympyk 971.
Thanks. I am going to try phoning them.ICS site document list - has owner's manuals and parts lists.
https://www.icsdiamondtools.com/en/document-library
Not sure if it is a complete listing or just the latest models.
It is a red unit and the sticker on the top cover has model 623G on it but there are not metal model tags I can find on it
I just got off the phone and yes they said it is an older version of the 633. Right now all I need is a fuel cap but it is NLA