Mercedes 300 diesel (75-85) Fuel Expansion Hose (Smooth Rubber) Fuel Expansion Hose 7.0x14.5mm, 325mm Length (Smooth Rubber) part# (000 997 51 52). Recently made by CONTITECH Fits: 115.114: m617.910: (1975-1976): 300d Fits: 116.120: m617.950: (1978-1980): 300sd Fits: 126.120: m617.951: (1981-1985): 300sd