thank you for your wealth of info your share so freely and in a very timely fashion.
Japanese sourced. We had 73J3713 which I believe was a 1973. Taillights mounted lower than American machines and ours had high beams as part of the roading light package. Ours had a different ROPS and not like the factory ones either. It might have been Tube-Lok but it was a long time ago. Definitely 24 volt. Kramer Tractor is in Saskatchewan Canada for what it’s worth.