2019 RAM Trucks Tire Fitment Guide

2019 RAM Trucks use ten tire sizes across four model lines: 275/55R20, 275/65R18, 285/45R22, and 275/70R18 for the 1500; 265/70R17 and 275/60R20 for the 1500 Classic; 275/70R18, 285/60R20, 285/70R17, and 245/70R17 for the 2500; and 275/70R18, 285/60R20, and 235/80R17 for the 3500. Rim diameters span 17, 18, 20, and 22 inches, so there is no one-size-fits-all answer for the entire RAM range.

The shared sizes are 275/70R18 across the 1500, 2500, and 3500, plus 285/60R20 across the 2500 and 3500. Everything else is tied to a narrower part of the lineup. That means year and make alone are not enough for a confident tire choice on a 2019 RAM Trucks pickup; you should confirm the exact model first, then verify the wheel diameter already on the truck before moving on to load rating, sidewall style, and tread character.

On a 2019 RAM Trucks tire, 275/70R18 means the tire is 275 millimeters wide, has a 70-series aspect ratio, uses radial construction, and mounts on an 18-inch wheel. That size appears across three different RAM models for 2019: the 1500, 2500, and 3500. The available all-terrain example in this size carries an R speed rating, which has a 106 mph ceiling, and fits rim widths from 7.0 to 9.0 inches.

That combination tells you much more than just diameter. It identifies the wheel size, gives a rough sense of the sidewall height relative to width, and separates this fitment from the 17-, 20-, and 22-inch tires used elsewhere in the RAM lineup. If your truck is wearing 18-inch wheels and falls into one of those three models, 275/70R18 is one of the first sizes to compare against the tire placard and the current wheel before choosing a replacement.

No, 2019 RAM Trucks models do not all use the same tire size. The 1500 alone uses four sizes, the 1500 Classic uses two different sizes, the 2500 uses four sizes, and the 3500 uses three sizes. Only a few fitments overlap across models, with 275/70R18 shared most broadly and 285/60R20 shared only between the 2500 and 3500.

That matters because a 2019 RAM Trucks 1500, 1500 Classic, 2500, and 3500 can all require different wheel diameters and different load-carrying approaches even within the same model year. If you are comparing tires by appearance or brand alone, it is easy to drift toward the wrong size. Start by confirming the exact model and the wheel diameter on the truck, then compare the replacement tire to the original-size marking before making a final decision.

2019 RAM Trucks tires on this page come in two sidewall styles: raised white letters and raised black letters. The 275/65R18, 275/70R18, 265/70R17, 285/70R17, and 245/70R17 options use RWL sidewalls, while the 235/80R17 uses an RBL sidewall. All of them are modern radial truck tires, so the sidewall decision here is more about visual presentation than about choosing between vintage construction types.

Raised white letters give a more aggressive, classic truck look that many owners prefer on all-terrain applications, especially on half-ton and heavy-duty pickups with a period off-road style. Raised black letters are more understated and can suit a work-focused or cleaner OEM-style appearance. If appearance matters as much as fitment, check the sidewall style before choosing a tire, because two tires in the right size can still give the truck a noticeably different character.

BFGoodrich is the brand represented across the available 2019 RAM Trucks sizes on this page, primarily through the All-Terrain T/A KO2 line. That coverage includes 275/65R18, 275/70R18, 265/70R17, 285/70R17, 245/70R17, and 235/80R17. Every one of those options uses radial construction and is aimed at modern truck use rather than a vintage-style reproduction application.

For a 2019 pickup, that kind of consistency can actually simplify the buying process because the tread family, sidewall language, and use case stay familiar as you compare across sizes. The more important differences are the exact size, the wheel diameter, the available load rating, and in a few cases the speed rating within the same size. Once you confirm your truck's model and tire code, you can focus on whether that specific BFGoodrich option matches how the truck is actually driven.

The two 285/70R17 options for 2019 RAM Trucks are both BFGoodrich All-Terrain T/A KO2 radials with raised white letter sidewalls, both fit 7.5- to 9.5-inch rims, and both mount on 17-inch wheels. The main differences are load and speed rating. One is a 116Q rated tire with a 2,755-pound maximum load at 50 psi and a 99 mph speed ceiling, while the other is a 121/118R rated tire with a 3,195-pound maximum load at 80 psi and a 106 mph speed ceiling.

That means the choice is not cosmetic. A 2019 RAM Trucks 2500 owner should compare the truck's required load capacity and intended use against the exact rating on the tire, especially if the truck sees towing, payload, or other heavy-duty work. Two tires can share the same nominal size and still behave as very different service-rated options. The safer approach is to match the replacement tire to the truck's load needs first and treat speed rating as a secondary but still relevant specification.

Several 2019 RAM Trucks sizes on this page include clear rim-width ranges. The 275/65R18 fits 7.5- to 9.5-inch rims, the 275/70R18 fits 7.0- to 9.0-inch rims, the 265/70R17 fits 7.0- to 9.0-inch rims, the 285/70R17 fits 7.5- to 9.5-inch rims, the 245/70R17 fits 6.5- to 8.0-inch rims, and the 235/80R17 fits 6.0- to 7.5-inch rims. Those ranges are specific to each tire size and should not be transferred from one size to another.

Rim width matters because even when two tires share the same wheel diameter, they do not necessarily belong on the same wheel width. A 17-inch wheel, for example, may physically accept more than one tire size, but the proper rim-width window can still be different by several inches. Before choosing a replacement for a 2019 RAM Trucks pickup, compare the tire's approved rim-width range to the actual wheel on the truck rather than assuming any tire with the correct diameter will fit correctly.

The available 2019 RAM Trucks tires on this page are modern radial truck tires, and none of the size markings here use tube-type identifiers. That points toward tubeless fitments rather than traditional inner-tube construction. The sizes represented in product form are 275/65R18, 275/70R18, 265/70R17, 285/70R17, 245/70R17, and 235/80R17, all in contemporary light-truck radial form.

Even so, the wheel itself still matters. If a wheel has been changed, damaged, or altered, sealing performance can become a wheel issue rather than a tire issue. On a 2019 RAM Trucks pickup that retains factory-style modern wheels, a tubeless radial is the normal expectation, but it is still smart to inspect the bead seats and valve stems during installation. That is especially important on a truck that sees off-road use, towing, or long periods between tire service.

No, original 2019 RAM Trucks wheels cannot be treated as universal across all ten tire sizes because the lineup uses 17-, 18-, 20-, and 22-inch rim diameters. A tire designed for a 17-inch wheel cannot be mounted on an 18-, 20-, or 22-inch wheel, and the same rule applies in every direction. Some overlap exists, such as the 275/70R18 used by the 1500, 2500, and 3500, but that only applies when those trucks already have the correct 18-inch wheels.

The practical takeaway is simple: confirm the wheel diameter on the truck before comparing sizes from other RAM models. Once the diameter matches, the next checkpoint is the approved rim-width range for that exact tire. That is why a shared size can sometimes move between multiple models, while many other sizes stay model-specific. Treat the original wheel as part of the fitment equation, not just the tire code on its own.

A 2019 RAM Trucks pickup should be stored on clean, properly inflated tires, out of direct sunlight, and away from ozone sources such as electric motors, battery chargers, welders, or running compressors. Keep the truck off wet ground when possible, and move it periodically so one contact patch does not carry the full static load for months at a time. Modern radials resist storage-related shape change better than older bias-ply tires, but long-term immobility still hardens rubber and stresses the carcass.

If the truck will sit for an extended season, many owners either roll it a short distance every few weeks or place it on stands with the suspension supported appropriately to reduce tire strain. The goal is to limit UV exposure, moisture, and flat spotting while preserving sidewall condition. A heavy-duty 2019 RAM Trucks model that carries more static weight on each tire benefits especially from keeping inflation checked during storage rather than letting pressure slowly fall over time.

Tires on a 2019 RAM Trucks pickup should be judged by age and condition as much as by tread depth. A sensible rule is to begin close inspection and professional evaluation around the five- to seven-year mark, with ten years often treated as the outer edge for replacement consideration regardless of appearance. The DOT date code on the sidewall is the most reliable way to determine tire age, and load-bearing truck tires should not be kept in service simply because they still look deep in tread.

Mileage alone can be misleading on a pickup that spends time parked, tows intermittently, or serves as a second vehicle. Heat cycles, ozone, underinflation, and age-related hardening all matter even when the tread blocks still seem usable. On a 2019 RAM Trucks truck, especially a 2500 or 3500 that may carry heavier loads, replacing an aged tire before obvious failure signs appear is usually a better strategy than stretching service life to the limit.

Tires on a 2019 RAM Trucks pickup should be inspected before every drive and again before any longer trip, tow, or hauling run. Check inflation, sidewall cracking, cuts, punctures, irregular wear, and any bulging or impact damage. Because several of these sizes are heavy-duty light-truck applications, pressure retention matters just as much as tread condition, especially if the truck spends time carrying loads or sitting between uses.

A quick inspection catches the problems that cause most roadside trouble: low pressure, embedded debris, weather cracking, and valve-stem deterioration. It also helps you spot whether one tire is wearing differently from the others, which may point to alignment or suspension issues rather than a tire defect. On a 2019 RAM Trucks truck, that habit is especially worthwhile before towing, highway travel, or off-pavement use, when a small issue can become much more serious under heat and load.

Yes, the available 2019 RAM Trucks tires here are modern radial truck tires intended for contemporary road use, but the exact speed rating still matters. The 275/65R18 and 275/70R18 examples carry an R rating, which has a 106 mph ceiling. The 265/70R17 and 245/70R17 examples carry an S rating, which has a 112 mph ceiling. The 285/70R17 varies by product between Q at 99 mph and R at 106 mph, while the 235/80R17 example carries an S rating at 112 mph.

In normal highway use, a 2019 RAM Trucks pickup is more often limited by load, braking distance, suspension condition, and overall vehicle setup than by the top-end speed capability of the tire. Still, the rating should match the truck's intended use and service demands. A heavily loaded or towing truck puts heat into the tire differently than an unloaded commuter pickup, so checking both speed rating and load capacity is the right way to think about highway safety.

Inflation pressure on a 2019 RAM Trucks tire depends on the exact size and service-rated version. Among the sizes shown here, 275/65R18 carries 3,415 pounds at 80 psi, 275/70R18 carries 3,640 pounds at 80 psi, the two 265/70R17 versions carry 2,470 pounds at 50 psi and 3,195 pounds at 80 psi, 285/70R17 carries 2,755 pounds at 50 psi or 3,195 pounds at 80 psi depending on the version, 245/70R17 carries 3,000 pounds at 80 psi, and 235/80R17 carries 3,085 pounds at 80 psi.

Those figures are tire load-and-pressure ratings, not a one-pressure-fits-all setting for every 2019 RAM Trucks model. The correct day-to-day inflation target should come from the truck's door placard or owner's manual, then be checked against the tire maker's specifications for the exact replacement tire. Never assume that two tires of the same size should run at the same pressure, especially when load range and service rating can vary within that size.

Before a longer drive in a 2019 RAM Trucks pickup, inspect all four tires and the spare for pressure, visible cracking, cuts, bulges, punctures, and uneven wear. Make sure the valve stems are in good condition and the tread is free of embedded debris. On trucks using heavier-duty service-rated tires, confirm that inflation is appropriate for the load you plan to carry, because a tire that is fine for empty driving may need different pressure support when the truck is working.

Tire checks are only part of the picture on a modern truck, so it also makes sense to review brakes, suspension, lights, fluids, and towing hardware if applicable. The tire-specific goal is to catch age, damage, or underinflation before heat builds on the highway. A 2019 RAM Trucks 2500 or 3500 heading out with a trailer deserves even closer attention, since the tire's load role becomes more critical as total vehicle demand rises.