Ski-Doo Maintenance Kit For Drive Pulley-REV-XP, REV-XR REV-XP, REV-XR 2011 to 2017 (800R P-TEK & 800R E-TEC) Includes: 1 Spring Cover Ass'y, 3 Rollers Ass'y, 1 Bushing (Siding Flange), 6 Slider Shoes, 6 O-Rings, 1 Circlip, 3 Cotter Pins & 3 Lever Axles.