Order Today to get your equipment back to in top shape. Simplicity Pro Zero Turn Commercial Mower Drive Chain These measure 43" each with 86 pins/rollers. Please measure and verify the actual # of links or the overall length of your drive chain before ordering. If your chain is longer or shorter and not in our stock contact us, we will make one especially for your needs. These Premium #40 chains are rugged to ANSI Standards with hardened solid steel rollers and pins. Easily installed with included master link. Please see our other listings for different drive chains on hand or we can custom make one for you. Chain Pitch: 0.500" Roller Diameter: 0.312" Roller Width: 0.312" Pin Diameter: 0.156" Plate Thickness: 0.060" Tensile strength: 3700 Pounds To get your ZTR ready for Spring replace any worn or slack drive chains in pairs for proper drive symmetry. To save with combined shipping just add them all to your cart before you checkout. This part is compatible with the following machines: Simplicity 1691841 - Simplicity Riding Mower, 16HP Lever Steer - Simplicity 1691842 - Simplicity Riding Mower, 16HP Wheel Steer - Simplicity 1691843 - Simplicity Riding Mower, 18HP Lever Steer - Simplicity 1691844 - Simplicity Riding Mower, 18HP Wheel Steer - Simplicity 1691845 - Simplicity Riding Mower, 20HP Lever Steer - Simplicity 1691846 - Simplicity Riding Mower, 20HP Wheel Steer - Simplicity 3018 (1691876) - AGCO 3018 Riding Mower, 18HP, Steer Wheel - Simplicity 3016 (1691882) - AGCO 3016 Riding Mower, 16HP, Steer Wheel -