Timing Chain Tensioner For BRP 330 400 570 650 800 1000 ATV UTV 420236510 Replacement timing chain tensioner designed for use with BRP 330 400 570 650 800 and 1000 engine models.Compatible with select ATV and UTV applications.Matches OEM specification 420236510.Engineered to maintain proper chain tension in the engine's timing system.Constructed for durability under normal operating conditions.Installs in place of the unit without modification.Suitable for use during engine repair or performance.