Ferguson 20D 1951 onwards TEF Diesel Tractor Top Quality Glowplug Preheat Heater Switch
Variously known as:
76710 3H949 ST19 76423 76423A
Extremely robust and British made with full steel case (not plastic)
Please note; occasionally these switches need a good pull to make contact first time, once bedded in they will work reliably.
Other genuine and quality Tractor electrics, LED bulbs & instrument components available from stock
Thanks for looking!