Part Number: 2GU-22151-10-00 Cam Chain Tensioner Complete Kit Harley Twin Cam Repl. 39954-99A 39964-99A This is a pretty important part to have. Replaces For Yamaha 2GU-22151-10-00 Prevent Derailment - The protruding part on the roller prevents derailment when you’re riding hard on the rough terrain. Upper Lower Chain Roller Swing Arm Guide Guard Seal 2gu 22151 10 00 Black Fitment: Replace for Yamaha ATV Banshee YFS350 1987 2006 Chain Roller Swing Arm Guide Guard Seal For Yamaha Banshee YFZ350 ATV 1987 2006 YFS200 Blaster 200 Replace OE # 2GU 22151 10 00 Durable Replacement for Yamaha ATV Banshee YFS350 1987-2006 This is top quality well-Manufactured Chain Roller Swing Arm Guide Guard Seal, Made of Wear-resistant Industrial material. If you do usually have to remove the swingarm, Or your swingarms swing like a hell. This is a pretty important part to have. Your swingarm will work just as well with a good installation Fitment: Replace for Yamaha ATV Banshee YFS350 1987-2006 Fitment: Replace for Yamaha ATV Blaster YFS200 1987-2006 Your swingarm will work just as well with a good installation.