Damper/shock for JOHN DEERE Z225,Z245,Z425,Z445,Z465,Z645,Z655,Z665 AM143066

MUST READ!! Aftermarket replacement damper / shock absorber for many models of popular John Deere Z-trak zero turn mowers. Please READ the application list below and contact us if you are uncertain this is the correct damper for your specific model. The damper replaces current John Deere part number AM143066 as well as John Deeres prior number AM136912. This dampener will fit the models below ONLY if the serial number of your zero turn is listed below. These dampers control the steering and movement of the zero turn and provide for smooth and consistent operation. A sign that these dampers have failed is jerky operation. The shock absorber will ONLY fit the following models. Please read carefully.Z225 and Z245 with serial numbers above 100,000Z425, Z445, Z465, Z645, Z655 and Z665 with serial numbers higher than 150,000