Water pump and thermostat wear.
Inspect · Check for coolant leaks and overheating history.

What the known faults on this Ram 2500 typically cost to put right at a UK independent garage · use the figures to price risk before you bid, and to justify a reduction when something shows up on inspection.
The single priciest documented job on the 2014–2018 Ram 2500 is head gasket / cooling system repair at £900–£2,600. Few cars need every repair listed here · treat £1,650–£6,400 as the full exposure if one arrived with all of them.
Water pump and thermostat wear.
Inspect · Check for coolant leaks and overheating history.
6.7 Cummins EGR / DPF clogging and DEF system faults.
Inspect · Scan for emissions codes and check regen / DEF history.
Front-axle 'death wobble' at speed after a bump.
Inspect · Test at highway speed over rough roads; check steering damper and linkage.
Track bar and ball-joint wear.
Inspect · Check for front-end play and clunks.
Ranges are indicative parts-and-labour costs at a UK independent garage, inclusive of VAT. Franchised dealers typically sit 40–80% higher, and prestige or electrified variants sit at the top of each band. Always get a written quote before committing.
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.