The Automotive Wedge belt provides high stability while minimizing deflection. The automotive wedgebelt utilizes stiff polyester cords for length stability. The wedge belts molded cogs reduce bending stress and improve heat dissipation in cut edge cogged belts. OEM Cross Reference 131201C91, 690491C91 Fits models: Case-IH COMBINE: 1680, Case-IH COMBINE: 1680 (SN -45689), Case-IH TRACTOR: 3688 (DSL), Case-IH TRACTOR: 4366 (DSL, SN 1501-), Case-IH TRACTOR: 4386 (DSL, SN 1501-), Case-IH TRACTOR: 5088 (DSL, W/ AC), Case-IH TRACTOR: 5288 (DSL, W/ AC), Case-IH TRACTOR: 5488 (DSL, W/ AC)