I'm planning parts for a respray at some point next year hopefully, but am looking to replace the front bumper at the same time.

Mine has a UK 89 bumper on at the mo and when it was fitted I had them fill the washer jet holes but it's starting to show so was hoping to swap for a new / good condition second hand 89 JDM bumper.

Does anyone know if it's still possible to get a JDM spec (or USA spec if it is the same) 89 front bumper?

I've found the following part numbers but Nissan UK either doesnt recognise them or is showing NLA:

 6202242P28 
 6202242P92

The USA version was available on Z1 but they now have that one marked as NLA 

Have a word with Raja93. He is (was) planning to replace his '89 with a '99 spec:

https://www.300zx.co.uk/forums/topic/160058-300zx-tt-a18gck/#comment-1751615

 

Early JDM bumpers are still available from Japan. Ruddy expensive though. 

You'd be best contacting some of the breakers on FB and getting one from them and getting it resprayed. 

Genuine 99 spec bumpers are available in the UK but they're not to everyone's taste.