545010 NOS - Thermostat Switch for Choke Warning Light, New Old Stock Land Rover Series 2, 2a and 3 £47.60 Quantity: at £47.60 each Out of Stock Out of stock. Thermostat Switch for Choke Warning Light, New Old Stock Sometimes referred to as Otter switch after the manufacturer. Genuine Otter manufactured switch. Some minor surface corrosion which should clean satisfactorily. Suitable only for: Series 2/2a, 2¼ Petrol engine. Series 2a, 2.6 6-cylinder engine. Series 3, 2¼ Petrol engines with choke thermostat switch. Series 3, 2.6 6-cylinder engine up to October 1972. Series 3, 109 V8. May also fit other British manufactured engines such as Jaguar, Austin-Healey, Rolls-Royce, Rover car.