Due to different measurement and manufacturing in V-belt manufacturers arise manufacturer span different lengths. However, these differences do not affect the functionality of the belt. Through various industry standards different paramaters are used to determine length specifications. And to the external length (external length, short Le), internal length (internal length, short Li) distinct and effective length. The effective length here describes the length measurement of approximately 3.4 belt height according to din 2215. Furthermore, the belt tension specified by the vehicle manufacturer must be included for reliable length measurements because this is also an important factor in the manufacturing process. Due to these different measurement methods it can lead to different belt sizes from different manufacturers with the same vehicle. Please based solely on our vehicle assignments. The Dayco Power Plus belt is characterized by a coating of aramid fibres, which give the belt a perfect high temperature resistance and therefore allow especially when starting a shorter length extension and a twice as large wear resistance compared to products made of polyester must (standard line). The teeth on the back of the belt also allows for maximum flexibility, greater surface area and better cooling of the belt during use. Dimensions 19.0 x 815 mm