Headstock Bearings & Seals: Yamaha YZ490 YZ 490 (1981-1988) Triumph Bonneville 865 4TR3 and 4TR4 engine models

4TR3 and 4TR4 engine models for the years shown above

This set of headstock bearings are taper roller style and have been manufactured to replace the original steering / headstock bearings on a Kawasaki Z1000 / KZ1000 for the years shown above

This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a Kawasaki GPZ550 / ZX550 / KZ550 for the years and models shown above

01 or ACI100

Headstock Bearings & Seals: Yamaha YZ490 YZ 490 (1981-1988) Triumph Bonneville 865 4TR3 and 4TR4 engine modelsBrand new set of headstock steering bearings with seals to fit: Yamaha YZ 490 (1981 1988). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a Yamaha YZ490 for the years and models shown above. Top and bottom headstock bearings with seals are included. We also stock without seals, please see our other listings for these. Top sized ID25 x OD47 x WTH15. Bottom sized ID30