This genuine oil seal is a brown, rubber part, measuring 8 x 14 x 5mm. This part can be installed using a screwdriver, wrench set, pliers, and pick, and a seal puller may also be required for maintenance. This repair is rated as "Easy" to install by customers. It attaches to the governer shaft to provide a tight seal, and if broken due to general wear or drying out, there will be visible oil coming out around the shaft. If damaged or missing, it should be replaced. Check your owners manual for the correct part number.