Compatible with Massey Ferguson TEA20 and TED20 tractors. PLEASE NOTE – This only fits some of the above models from serial no. Please check the below dimensions of your existing valves. Valve Inlet: Head diameter = 28.1mm. Total length = 108.3mm. Stem diameter = 7.9mm. Standard type with 45 Degree seat angle. Valve Exhaust: Head diameter = 26.5mm. Replaces original part no. ALL MAJOR CREDIT AND DEBIT CARDS ACCEPTED. All parts are high quality non genuine parts unless otherwise stated. Buyers outside of the UK are reminded that they are responsible for any import duty charges imposed.