Description 16 / 20v 4age – Sump drain plug sealing washer This steel / fibre sealing washer fits between the flange of the sump drain plug / bolt and the engine sump. Suits all drain plugs that feature an M12 thread. Part specifications – Inside diameter: 12mm – suits sump plugs with an M12 thread size – Outside diameter: 21mm – Thickness: 1.8mm Replace this part if there is an oil leak from the very bottom of the engine near the oil drain point.
