Tandem clamp — a genuine BMW part, number 13 31 1 717 075. The number stamped on the part is 13311717075; BMW's catalog files it under the short number 1717075. You will find it on our Air Intake shelf, under Other Fuel preparation and control parts.
It fits every E36 body style (318i, 318ti, 320i, 323i, 325i and 328i, 1992–1999), with the M40, M42, M43, M44, M50 or M52 engines — and the European-market versions.
BMW draws it on 3 diagrams, among them Catalytic converter/front silencer (18_0172) and Accelerator pedal/bowden cable LHD (35_0152).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.