RAM 3500 2014 Ram

Thoroughly inspect the frame for rust or signs of heavy abuse, especially if previously used for commercial towing.

Get a pre-purchase inspection from a heavy-duty truck specialist, focusing on the engine, transmission, and suspension.

Check the service records, particularly for diesel models, to ensure regular oil changes and maintenance of the emissions system.

Verify the truck's history for accident damage, flood damage, or salvage titles, which are common for vehicles from US auctions.

Pay attention to any warning lights related to the DPF or check for signs of DPF delete modifications, which are illegal in many regions.

Test drive the truck with some weight in the bed or a small trailer if possible, to assess its performance under load.