VERDICT · MAXIMUM CAPABILITY, SAME LEGENDARY ENGINE

RAM 3500 6.7L
is it a safe used buy?

RAM's maximum-capability heavy-duty truck, sharing the same legendary Cummins engine as the related 2500 — genuinely among the most capable, dependable working trucks on the used market.

GENERATION5th gen (2019–2023)

ENGINE6.7L Cummins

POWER370–420 hp

USED PRICE$38,000–58,000

How the engine fits this car

The 3500's dual-rear-wheel (where fitted) and maximum-capability configuration push this Cummins engine's genuine towing strength to its fullest expression — a combination built specifically for buyers who need maximum capability rather than just want it.

This generation's comparatively recent production means most examples are still well within their prime service life, with the engine's legendary long-term track record still ahead of them rather than behind.

RAM 3500-specific pros and cons

This is about the car itself — for engine-specific failure points, see the dedicated engine page below.

WHAT HOLDS UP WELL

Cummins's legendary reliability reputation, detailed on the engine page, is backed by genuine, extensive documented evidence
Maximum towing and payload capacity for the segment, genuinely class-leading in some configurations
Comparatively recent production means most examples are early in their expected service life
Strong parts availability and specialist familiarity given the engine's legendary status

WHAT TO WATCH

Purchase price reflects the truck's maximum-capability positioning and comparatively recent production
Dual-rear-wheel configurations (where fitted) add width and complexity worth considering for your specific use case
AdBlue/DEF system adds a maintenance item to track
Fuel economy, while reasonable for a heavy-duty diesel, is a genuine consideration given the truck's size

Pricing on the used market

Mileage band

Typical price

What to expect

Under 40,000 mi

$50,000–58,000

Lower-mileage, often still under warranty

40,000–80,000 mi

$43,000–50,000

Sweet spot, minimal additional risk

80,000+ mi

$38,000–43,000

Still a confident buy with documented maintenance

The engine itself

This RAM 3500 shares its 6.7L Cummins with the related 2500. Full detail on this engine's legendary reliability track record lives on the dedicated engine page.

FULL ENGINE BREAKDOWNRAM 6.7L Cummins Diesel — Reliable or Not →

Pre-purchase checklist for this generation

Ask about driving pattern for EGR/DPF considerations, though this engine is meaningfully more forgiving than most.

Check AdBlue/DEF system function and ask about consumption rate, a useful proxy for overall system health.

Confirm whether the specific truck is dual-rear-wheel or single-rear-wheel, and consider which suits your actual use case.