Sorry I've been so long responding. We've been on holiday.

Thanks for trying. Does anyone know whether this "knob" assembly was fitted to any other model? Or does anyone have any bright ideas about an alternative?

I have only this one . The inside of the knob (the business end of it) is smashed. Hope this helps.

I am searching for two seat tilt knobs for a 340 circa 1985. These are large plastic knobs which enable the seat back to be reclined or raised. I need one for each of the front seats both Passenger and Driver's. I suspect that they are identical across the range but I don't know this for certain.