Car Repair Part ATP ZA-539 | Clutch Flywheel Ring Gear Ring Gear Replacement Repeated engagement with the starter results in worn or broken ring gear teeth. Spur Light Vehicle Automotive Ring Gear, For Industrial at ₹ 6000/piece in Ahmedabad Once this is diagnosed, the ring gear must be replaced. Part #: ZA539|Brand: ATP|MPN #: ZA-539~AT. AQN ATP ZA539. Not Found. $31.48 / ea. Ready to ship PARCEL ELIGIBLE. Get it est. Feb 24 to 75247 The ring gear has teeth which engage with the starter motor allowing the engine to crank over and start. Transmission Filter Kit-Auto Trans Filter Kit ATP B-539 740993078487 Product Type:Auto Part