Drive Sprocket 6811940 6814137 for Bobcat 328 334 231 325 331 21T 9 Drive Motor Bolt Holes 78016598Specification 21 Drive Teeth 9 Drive Motor Bolt Holes Part Numbers: 6814137, 6811940 Application: For Bobcat Mini Excavator 325 328 331 334 Compatible with Bobcat Construction & Industrial(s) 231 (s n 508911001 508911999), 325 (s n 232311001 later, 232411001 later, 511820001 later, 514011001 later, 516611001 later), 328 (s n 232311001 later, 232411001 later, 514013001 later, 516611001 lat Compatible with Bobcat Mini Excavator(s) 231 (s n 508911001