Export of vehicle screen wash bottle and tubing

I’m trying to find the HS code for a complete windscreen wash system (washer bottle, pump, tubing and nozzles).
These are vehicle parts, not accessories.
Would a plastic washer bottle and tubing be in this chapter, or in chapter 39?

Many thanks for your help

I would say that you would define thius as a complete unit rather than plastic components of the washer system.

It is a part but parts and accessories are lumped together anyway.
So that would lead to 870899
Hope this helps