TOPIC:

What is the size of the ball connector on the coupling on the grand hauler?

Mine has snapped and unsure on size for replacement.

If you don't have the manual you can get a PDF from www.tamiyausa.c...uler-56301 (click on the "manual" link) ... from your description part# BE6 appears to be it - tamiya call that a 4mm connector....part # 50590 will be a lot cheaper than buying a whole "E" bag, assuming it's correct ...

Had a look. BA20 it is listed as, which funnily enough is 4mm.

Thanks.