Mowing Belts that feed power to mower jackshaft,

[Big Wave D]

I own a mid '80's B6200e. My problem is that ever since the original power and deck belts have had to been replaced. I have never, EVER come close to the longevity of those original belts. (15+ years for all 3)

Kubota belts are rather pricey in my neighborhood, but I am wondering if maybe I'd be ahead for buying them again. I have tried all the major brands from various automotive and industrial supply houses. Power belts, maybe 2 seasons. Deck belt usually less than one.

I have rebuilt my deck with new sheaves, etc. Still the same short life span. Cutting the same grass all these years, so nothing different there.

Can anybody give me a size/model number, for either the front power or mowing deck, and maker of the belt that they have found to have good lasting traits.

I have tried Kevlar and not noticed any real improvement from spending the extra money on those.

Thanks all for your advice and replies.