Sorry, I just saw this message. Are you still looking for a radiator? I located several on Amazon but ended up paying a bit more to get a solid metal one from a local shop. Cost was $1,000. It was a Volvo radiator as I recall. Spartan gave me the part number. I hope this helps!

Driedl,
I have a 1998 DSDP identical to yours. On the Way to Atlant MotorSpeedway this weekend, mine started leaking on the inside. Seems to be close to the right side near half way up leaking on my fan. Some crazy reason it doesn’t really leak much running, but leaks pretty good parked. I saw the post where you replaced yours yourself. Did you find a replacement radiator other than Spartan? I know there’s is pricey.

Thanks,
David D