AGA MASTERCHEF Genuine FSD Hob Burner 600mm Thermocouple AG4M260600 M0334AGA MASTERCHEF Genuine FSD Hob Burner 600mm Thermocouple AG4M260600 AGAAG4M260600 M0334 This thermocouple fits the original AGA Masterchef with serial numbers beginning with AE4M, not the new models with 10 or 11 numerical digit serial numbers. Please check that this is definitely the right part for you as refunds will only be issued for faulty parts. All parts will be re tested before any exchange or refund is issued. If you need any other parts or