Syncronix timing belt kit is composedof the timing belt, the tensionersand the dampers, while the Syncronixpoly-v kit is composed of the Poly-V timing belt, the tensioners and the dampers.Both kits provide you with OE Original Quality and/or equivalent quality, ensure an optimal performance and prevent the rapid degradation of your car distribution system.Syncronix timing belt kits are also available with water pumps.