This Yamaha 2K8-22179-00-00 ARM, TENSIONER fits the following models and components:

Yamaha Motorcycle 1977 YZ400D REAR ARM YZ400D E

Yamaha Motorcycle 1979 YZ125F SWING ARM YZ125E

Yamaha Motorcycle 1980 YZ125G SWING ARM YZ125E

Yamaha Motorcycle 1978 YZ125E SWING ARM YZ125E

Yamaha Motorcycle 1976 YZ250C Swing Arm Yz250d - E

Yamaha Motorcycle 1978 YZ250E Swing Arm Yz250d - E

Yamaha Motorcycle 1977 YZ250D Swing Arm Yz250d - E

USED PARTS DISCLAIMER: I used to wonder why so many sellers had tons of information on their listings pertaining to returns, used parts, warranties etc. I now realize this was necessary to curb the amount of buyers out there who experience "buyers Remorse" and try to abuse the eBay buyer protection program by buying a part and then saying they are not happy with it for whatever reason and try to get some of their money back or in some cases all of it and then on top of that try to keep the item!  I now have to make it perfectly clear as well. If I offer a used part for sale that has a return allowed, then it can be returned. If I say no returns, that means NO returns. You are buying these USED parts in AS IS condition. If you need further photos, further inspection, ohms tested or anything else, you need to make that perfectly clear BEFORE YOU BUY THE ITEM. If you know of a particular inherent problem with a certain item, then you need to bring it to my attention so I can look for that problem BEFORE YOU BUY IT. If I happened to miss the problem initially, while rare, that is not unusual for used parts. Most of you buyers are fully aware of this information and it is not a problem. The one's who abuse it are what this disclaimer is for. Enough said.