Genuine Optibelt B42 classical V-belt, engineered for reliable and efficient power transmission in various agricultural and industrial machinery applications. This B-profile belt features a 17mm top width and 11mm height. Its precise dimensions include an external length (La) of 1143mm (45 inches), an effective length (Ld) of 1118mm (44 inches), and an internal length (Li) of 1067mm (42 inches). Constructed with high-quality materials for extended durability and consistent performance.