Learning about Radiators and condensers for heavy duty trucks

Carmine_71

Rookie Expediter
I am doing a research on the radiators and condensers for heavy duty trucks (6,7 and 8). I would be really grateful to learn about how radiators are selected when need to be replaced. Based only on price? Is there any differentiation between suppliers? Are warranties comparable? How long does a replaced radiator last compared with the original one? Do radiators cost more or less than in the past? Is there any technological development (materials, design, etc.) to be considered? Do you replace a radiator only when it breaks / fails or is the replacement suggested at certain mileage thresholds? Any help is very welcome!
 
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