Used 2018 RAM 3500 for Sale nearSaint Louis, MO

How much does the 2018 RAM 3500 cost?

Prices have softened 6.82% compared to this time last year, making it a favorable time to shop this model year.

There are 721 listings available, which gives you a meaningful amount of inventory to compare.

Is the 2018 RAM 3500 a good car?

Yes — the 2018 RAM 3500 earns a 5/5 user rating, which points to very strong owner satisfaction. Owners consistently praise its heavy towing capability, comfortable ride, and sturdy build, and they also highlight its thoughtful design and fuel economy for a large truck. For you, that means this model year makes the most sense if you want a heavy-duty truck that can work hard while still feeling more refined inside. With 30.5% of listings marked as good or great deals, there is also a solid amount of market opportunity if you shop carefully.

Is the 2018 RAM 3500 reliable?

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

The owner feedback also emphasizes that it feels dependable and trouble-free in everyday use, with praise centered on its sturdy build and the confidence it inspires over time. That kind of response suggests lower long-term ownership risk for used buyers who prioritize durability and want a truck they can count on.

What should I look for when buying a used 2018 RAM 3500?

At 65.6% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report so you can separate clean examples from trucks with prior damage. After that, put inspection priority on body condition, signs of repair, and overall wear that could point to hard use. Because this is a heavy-duty truck, you should also focus on how well the listing has been maintained and whether its condition matches the work it may have done.

Is now a good time to buy a used 2018 RAM 3500?

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you know what you want.

• Deal availability: 30.5% of listings are priced as good or great deals.
• Inventory: There are 721 listings available.
• Price trend: Prices have softened 6.82% compared with last year.
• Clean inventory: 65.6% of listings are accident-free.

If you find a listing below $35,420, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 RAM 3500's resale value?

The current average of $36,084 sits slightly below last year's $38,726.

That price movement suggests the market has cooled enough to give you a better entry point now than a year ago. For a future seller, that can mean less immediate upside if you buy at the wrong price, but it also means you may be entering at a more realistic market level. If the truck stays well maintained and continues to attract buyers who need serious towing capability, it should remain easier to resell than a less specialized vehicle.

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

Should I buy a 2018 RAM 3500 or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 30.5% of listings are priced as good or great deals.
• At 65.6% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 6.82% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line:

If you want a heavy-duty truck with strong owner approval, a softer price than last year, and a good amount of inventory to compare, the 2018 is the primary year to target. If your main goal is to maximize savings, you can also keep an eye on nearby years and compare condition closely, but the 2018 offers a compelling balance of value, satisfaction, and availability.

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