Fits:
YAMAHA DT 400 400 1978
YAMAHA DT 400 400 1977
YAMAHA DT 400 400 1976
YAMAHA DT 400 400 1975
YAMAHA IT 425 [425]
YAMAHA IT 425 425 1980
YAMAHA IT 465 [465]
YAMAHA IT 465 465 1982
YAMAHA IT 465 465 1981
YAMAHA YZ 465 [465]
YAMAHA YZ 465 465 1981
YAMAHA YZ 465 465 1980
YAMAHA YZ 400 COMPETITION [400]
YAMAHA YZ 400 COMPETITION 400 1979
YAMAHA YZ 400 COMPETITION 400 1978
YAMAHA YZ 400 COMPETITION 400 1977
YAMAHA YZ 400 COMPETITION 400 1976

Wössner is a renowned German manufacturer specializing in high-performance pistons, connecting rods, and other engine components for automotive, motorcycle, and marine applications. Known for precision engineering and advanced forging techniques, Wössner products are built to withstand extreme conditions and deliver exceptional durability and performance. They cater to both professional motorsports teams and performance enthusiasts, offering custom solutions and OEM replacements. Wössner is highly regarded for their focus on innovation, using cutting-edge materials and design to improve engine efficiency and power output.
| Brand | Model | Year | Name | CC |
|---|---|---|---|---|
| YAMAHA | DT | 1975 | 400 | |
| YAMAHA | DT | 1976 | 400 | |
| YAMAHA | DT | 1977 | 400 | |
| YAMAHA | DT | 1978 | 400 | |
| YAMAHA | DT | 1975 | 400 | |
| YAMAHA | DT | 1976 | 400 | |
| YAMAHA | DT | 1977 | 400 | |
| YAMAHA | DT | 1978 | 400 | |
| YAMAHA | YZ | 1976 | 400 | |
| YAMAHA | YZ | 1977 | 400 | |
| YAMAHA | YZ | 1978 | 400 | |
| YAMAHA | YZ | 1979 | 400 | |
| YAMAHA | IT | 1980 | 425 | |
| YAMAHA | IT | 1981 | 465 | |
| YAMAHA | IT | 1982 | 465 | |
| YAMAHA | YZ | 1980 | 465 | |
| YAMAHA | YZ | 1981 | 465 |
WÖSSNER Single Piston Ring Ø85,5mm Yamaha DT / IT / YZ 400-465 75-82
/ pcs.