Bobcat 873 D0721 Error Code
D0721 Error Code
Hydraulic Oil Temperature OOR High is the main cause of D0721 error.A significant number of consequences can be suffered due to an overheating engine with code D0721. The problem might be a blown gasket or something related to the fuel tank.
Tip For 873 Model
It is recommended in cold weather to cycle the glow plugs twice before attempting to start the engine. This will allow for additional heating time for cold weather starting.