Check the listing for details. 2004-2013 Yamaha YFZ 450 CARB POLY NYLON Case Saver Engine Chain Guard Protector. Color: Black, Condition: New. Listed at 25.99 USD. Protect your Yamaha YFZ450 (carburetor model) engine chain with this Solid Layer Motorsports Case Saver. Made from premium nylon material, this black case saver is specifically designed for Yamaha ATVs. It is compatible with various models from 2009 to 2023, and comes with a 1-year manufacturer warranty. This OE/OEM part number 18P-15421-00-00 is a must-have for off-road enthusiasts. Its processing model is FDM, and it is manufactured in the United States. Get this Case Saver to ensure your Yamaha engine stays protected without worrying about its condition. Currently only known to be compatible with 14 tooth front sprocket and smaller. 15 tooth front sprockets may be compatible but could be very tight. This case saver was designed to not only protect the engine case at the clutch actuator, but also the shift shaft as well. It will spit the chain out in the event of a derail instead of binding up.Protect your Yamaha YFZ450 (carburetor model) engine chain with this Solid Layer Motorsports Case Saver. Made from premium nylon material, this black case saver is specifically designed for Yamaha ATVs. It is compatible with various models from 2009 to 2023, and comes with a 1-year manufacturer warranty. This OE/OEM part number 18P-15421-00-00 is a must-have for off-road enthusiasts. Its processing model is FDM, and it is manufactured in the United States. Get this Case Saver to ensure your Yamaha engine stays protected without worrying about its condition. Currently only known to be compatible with 14 tooth front sprocket and smaller. 15 tooth front sprockets may be compatible but could be very tight. This case saver was designed to not only protect the engine case at the clutch actuator, but also the shift shaft as well. It will spit the chain out in the event of a derail instead of binding up.