An Air/Oil cooled engine relies more on oil cooling than the air cooling of the engine via the cooling fins on the engine. It essential therefor, that all the components and fittings that make up the oil-cooler assembly are in perfect operating condition.
Refurbishing with new parts removes any doubts about the parts being less than 100% perfect.
Other related parts you may wish to consider:
Add as many new parts as you wish to the same shopping cart, new cushion 1662827A00, spacer 0918006310 and bolt 0911606115 for example, and still only pay the same single fixed price shipping cost. This component may have other applications in the Suzuki model range so please ensure the part-number/s you order are correct for your particular model.