Worx WA0158 16-Inch Chainsaw Bar Low Kickback for WG300, 303, 303.1, 304, 304.1 Suitable replacement bar for 16-inch wg303, wg303.1 worx chainsaws Use with wa0157 chainsaw loop May also be used for worx series chainsaws wg300,wg304,wg304.1 with proper length chain Interchangeable with part number 50019157