Land Rover Series 2, 2a 3 & 'Lightweight' Solid Brass Heater Pipe Union (BSP Only)

Land Rover Defender 200TDi & 300TDi

Discovery 1 200TDi & 300TDi 

Range Rover Classic 200TDi & 300TDi

624091 Heater Pipe Union

3/8 inch BSP (19 TPI)  hose connection. Fits at the back of the cylinder head to connect to the heater using the larger 5/8" inch pipe found on later vehicles.

British-made in solid brass

Please note: Some later 2.25 Petrol & Diesel Engines used a Metric Adapter (ERC9453)