The Karcher O-Ring Seal 142.2x3 EPDM 70 is a genuine Karcher part to fit select models of the K4 and K5 pressure washer. Karcher O-Ring Seal 142.2x3 EPDM 70. Genuine Karcher Part. Is your pressure washer in need of a new O-ring causing your machine to leak or not to work at its full capacity?.
