Used 2021 RAM 2500 for Sale nearSaint Louis, MO

How much does the 2021 RAM 2500 cost?

Prices have softened 8.71% compared to this time last year, making it a favorable time to shop this model year.

There are 3,508 listings available, which gives you a solid pool of trucks to compare.

Is the 2021 RAM 2500 a good car?

Yes — 4.69/5 is a strong user rating for this model year. Owners consistently praise its performance, safety features, and value for money, and many also appreciate the impressive power and fuel efficiency, especially with the diesel engine. That lines up well if you want a heavy-duty pickup that can handle towing and payload while still feeling more comfortable and better equipped than many work-focused trucks. With 30.4% of listings marked as good or great deals, you have room to shop selectively.

Is the 2021 RAM 2500 reliable?

Owners rate it 4.69/5, a strong signal of long-term satisfaction.

The review summary points to a truck that owners find dependable, with praise centered on performance and value over time. The repeated mention of strong power and fuel efficiency also suggests a vehicle many buyers feel confident living with day to day. For used buyers, that usually means lower ownership anxiety if the truck has been maintained well and checked carefully before purchase.

What should I look for when buying a used 2021 RAM 2500?

Accident-free inventory is solid at 77.7% — always verify the vehicle history report.

Start with the history report so you can confirm accident status, title status, and service patterns before you get too far into negotiations. Then prioritize a pre-purchase inspection, especially on a heavy-duty truck where towing use and wear can vary widely from one example to the next. Focus on overall condition, maintenance evidence, and signs of hard use rather than just mileage alone.

Is now a good time to buy a used 2021 RAM 2500?

This looks like a moderate market, so you can shop patiently but still move quickly on the right truck.

• Deal availability: 30.4% of listings are priced as good or great deals.
• Inventory: There are 3,508 listings available.
• Price trend: Prices have softened 8.71% compared with last year.
• Clean inventory: 77.7% of listings are accident-free.

If you find a listing below $40,622, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 RAM 2500's resale value?

The current average of $40,622 sits slightly below last year's $44,496.

That price movement suggests the market has cooled a bit, which can help you buy more confidently now but may also temper near-term resale gains. If you plan to sell later, the biggest advantage will come from buying well, keeping the truck clean, and documenting maintenance. Trucks that stay in strong condition and remain desirable to shoppers tend to hold value better when the market softens.

Vehicles with strong owner satisfaction ratings, like this model year's 4.69/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2021 RAM 2500 or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 30.4% of listings are priced as good or great deals.
• Accident-free inventory is solid at 77.7% — always verify the vehicle history report.
• Price trend: Prices have softened 8.71% compared with last year.
• Owners rate it 4.69/5 — a strong satisfaction signal.

Consider the 2020 if:

• At $38,572, the 2020 costs less than the current year's $40,622 average.
• It emphasizes upscale capability with a refined, serious heavy-duty character.

The bottom line: If you want the better-balanced buy, the 2021 is the stronger primary target because it combines a softer price trend, solid inventory, and strong owner satisfaction. If your top priority is spending less upfront, the 2020 is the better secondary path, especially if you find one in excellent condition with a clean history.

These recommendations are based on CarGurus' proprietary market data from September 15, 2026, CarGurus experts' opinions, and generative AI.