The 2018 Jeep Trucks Wrangler sits at the point where the Wrangler’s long-running off-road identity met a more modern mix of daily driving, trail use, and trim-specific wheel packages. Buyers looking at this exact model usually need to sort out tire fitment by sub-model first, because the Wrangler uses four different primary radial sizes: 245/75R17, 255/75R17, 285/70R17, and 255/70R18. That means the decision is less about vintage bias-ply versus radial construction and more about matching the correct size to the Jeep’s wheel diameter, trim, and intended use. Once that is settled, selection comes down to details such as load specification, rim-width compatibility, and raised white letter all-terrain styling.
Which Tire Size Is Right for The 2018 Jeep Trucks Wrangler
The 2018 Jeep Trucks Wrangler uses four primary tire sizes, and the right one depends on the exact sub-model and wheel package. Three sizes mount on 17-inch wheels, while 255/70R18 uses an 18-inch wheel, so confirming both the trim and the actual rim diameter on the Jeep is the first step before comparing tire options.
285/70R17 is a modern metric radial size in which 285 is the section width in millimeters, 70 is the aspect ratio, R identifies radial construction, and 17 is the wheel diameter in inches. On the 2018 Jeep Trucks Wrangler, this size is used on specific sub-models that call for a wider, taller-looking 17-inch fitment. Available choices in this size include BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls and differing load specifications. It is the size to evaluate when the Jeep already has the correct 17-inch wheel setup and calls for the largest primary fitment used on this model range.
Fit(s): Sport, Sport S, Unlimited Sport, and Unlimited Sport S
Construction: Radial|Rim: 17 in
245/75R17 is a modern metric radial size that uses a 245-millimeter nominal section width, a 75-series profile, radial construction, and a 17-inch rim. This size serves several 2018 Jeep Trucks Wrangler sub-models, making it one of the core 17-inch fitments in the lineup. BFGoodrich offers it in the All-Terrain T/A KO2 series with raised white letter styling, plus a load capacity of 3,195 lbs @ 80 psi on the available LT245/75R17/E option. It is the right path to follow when the Jeep’s trim and wheel package point to the narrower 17-inch factory-style fitment rather than the wider or 18-inch alternatives.
255/75R17 is a modern metric radial size, with 255 indicating section width in millimeters, 75 showing the aspect ratio, R denoting radial construction, and 17 marking the wheel diameter. On the 2018 Jeep Trucks Wrangler, this size applies to a specific sub-model rather than the full range, so it should be matched carefully to the Jeep’s exact configuration. Its dimensions place it close to the taller 17-inch Wrangler fitments while keeping a different width profile than 245/75R17 or 285/70R17. This is the size to focus on when the Jeep retains its original 17-inch wheel package and the trim calls for this particular balance of width and height.
255/70R18 is a modern metric radial size that combines a 255-millimeter section width, a 70-series aspect ratio, radial construction, and an 18-inch rim diameter. For the 2018 Jeep Trucks Wrangler, this size stands apart because it uses a different wheel diameter from the three 17-inch fitments. Its overall dimensions are close to 255/75R17, but the 18-inch wheel requirement makes wheel confirmation especially important before any tire purchase. This is the size to check when the Jeep has the correct 18-inch wheels and belongs to the sub-model that uses the larger rim package rather than one of the 17-inch setups.
Tire fitment on the 2018 Jeep Trucks Wrangler varies by sub-model, so identifying the exact trim matters before choosing a replacement. That is especially important here because the lineup uses both 17-inch and 18-inch wheel packages, along with different section widths and profiles.
1
2018 Jeep Trucks Wrangler Rubicon
The 2018 Jeep Trucks Wrangler Rubicon uses the wider 285/70R17 radial size on a 17-inch wheel. That makes wheel confirmation straightforward, and the main decision becomes choosing the right all-terrain specification, load range, and sidewall presentation within that fitment.
The 2018 Jeep Trucks Wrangler Sport uses 245/75R17 radial tires on a 17-inch rim. Tire selection centers on staying with that trim-specific size and then comparing practical details such as rim-width compatibility, load specification, and all-terrain sidewall style.
The 2018 Jeep Trucks Wrangler Sport S shares the 245/75R17 radial fitment used on a 17-inch wheel. That keeps the fitment process simple, but it is still worth checking the actual wheel setup on the Jeep if it has been changed from its original configuration.
The 2018 Jeep Trucks Wrangler Unlimited Moab uses 255/75R17 radial tires. This fitment should be matched to the Moab’s specific wheel package first, then evaluated for tire choice based on the intended mix of street use, trail use, and overall tire character.
The 2018 Jeep Trucks Wrangler Unlimited Rubicon uses the same 285/70R17 radial size as the two-door Rubicon. That means the tire search starts with the correct 17-inch wheel fitment, then moves to selecting the right load rating and product details for how the Jeep is driven.
The 2018 Jeep Trucks Wrangler Unlimited Sahara uses 255/70R18 radial tires, making it the one sub-model here tied to an 18-inch wheel. That makes rim diameter the key first check before comparing tires, especially on Wranglers that may have received wheel swaps.
The 2018 Jeep Trucks Wrangler Unlimited Sport uses 245/75R17 radial tires on a 17-inch wheel. Buyers should stay with that fitment unless the Jeep’s wheels or suspension have been changed, then compare available tire specifications within the correct size.
The 2018 Jeep Trucks Wrangler Unlimited Sport S also uses 245/75R17 radial tires. Because several Wrangler sub-models share 17-inch wheels but not the same exact tire size, confirming the trim and the tire sidewall currently on the Jeep helps prevent a mismatch.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2018 Jeep Trucks Wrangler Tires for Sale
Available 2018 Jeep Trucks Wrangler tire choices center on BFGoodrich All-Terrain T/A KO2 fitments, with raised white letter sidewalls and size-specific rim-width and load specifications. The current product mix is strongest in 245/75R17 and 285/70R17, where comparing load range and wheel compatibility matters most.
Wrangler buyers usually need quick answers about exact tire size by sub-model, 17-inch versus 18-inch wheel fitment, available all-terrain choices, and what to inspect before putting a replacement tire into regular road or trail use.
Tire Size & Fitment
What tire size fits a 2018 Jeep Trucks Wrangler?
The 2018 Jeep Trucks Wrangler uses four primary tire sizes: 245/75R17, 255/75R17, 285/70R17, and 255/70R18. The correct size depends on the exact sub-model, with Sport, Sport S, Unlimited Sport, and Unlimited Sport S using 245/75R17, Rubicon and Unlimited Rubicon using 285/70R17, Unlimited Moab using 255/75R17, and Unlimited Sahara using 255/70R18.
The practical takeaway is that a Wrangler tire search should begin with the trim and the actual wheel diameter on the Jeep, not just the model name. Several versions use 17-inch wheels, but they do not all use the same width and profile, and the Unlimited Sahara moves to an 18-inch fitment.
What size rim does a 2018 Jeep Trucks Wrangler use?
A 2018 Jeep Trucks Wrangler uses either a 17-inch or 18-inch rim, depending on sub-model. The 245/75R17, 255/75R17, and 285/70R17 sizes all mount on 17-inch wheels, while 255/70R18 uses an 18-inch wheel. That means rim diameter is a basic fitment check before comparing tread style, load specification, or any other tire detail.
Wheel diameter should be confirmed directly on the Jeep, especially if it has aftermarket wheels or a previous owner changed the package. A Wrangler with 18-inch wheels cannot use a 17-inch tire, and a Jeep with 17-inch wheels still needs the correct width and profile for its specific trim.
Why does the 2018 Jeep Trucks Wrangler have more than one tire size?
The 2018 Jeep Trucks Wrangler has more than one tire size because different sub-models use different wheel and tire packages. Sport-oriented trims use 245/75R17, the Unlimited Moab uses 255/75R17, Rubicon models use 285/70R17, and the Unlimited Sahara uses 255/70R18. All of them are radial tires, but the fitments vary in width, profile, and in one case wheel diameter.
That variation means the right tire is tied to the Jeep’s trim and hardware, not just the year and model name. Looking at the current tire sidewall and checking the wheel diameter are the quickest ways to narrow the choice before comparing all-terrain options or load specifications.
Choosing the Right Tire
What should I consider when choosing a 2018 Jeep Trucks Wrangler tire?
Start with the exact size that matches the Wrangler’s sub-model and wheel diameter, because this model range uses four different primary fitments. After that, compare the tire’s construction, rim-width range, load specification, and the kind of driving the Jeep sees most often. On the currently available options, those details matter most in 245/75R17 and 285/70R17.
Appearance can also shape the decision, especially if the Jeep owner wants a traditional all-terrain look rather than a more neutral sidewall. A replacement should also be checked against the actual wheel setup on the vehicle, since aftermarket wheels or previous tire changes can move a Wrangler away from its original trim-based fitment.
What sidewall styles are available for 2018 Jeep Trucks Wrangler tires?
The currently available 2018 Jeep Trucks Wrangler products in the covered sizes use RWL sidewalls, which means raised white letters. That styling appears on the BFGoodrich All-Terrain T/A KO2 options available for 245/75R17 and 285/70R17. It gives the tire a more traditional truck and off-road presentation than a plain black sidewall.
Sidewall style does not change the need to match the correct size, wheel diameter, and load requirement for the Jeep. It is best treated as an appearance choice that comes after the fitment basics are confirmed, especially on a Wrangler that may see both street use and trail duty.
What brands offer tires for the 2018 Jeep Trucks Wrangler?
The current product selection for the covered 2018 Jeep Trucks Wrangler sizes comes from BFGoodrich. The available offerings are in the All-Terrain T/A KO2 line, including options for 245/75R17 and 285/70R17. Those products share radial construction and raised white letter sidewalls, while differing by size-specific load and wheel-compatibility details.
Brand alone should not drive the choice more than the Wrangler’s actual fitment requirements. It still makes sense to compare the exact size, the wheel-width range, and whether the tire’s specification matches the Jeep’s use, especially if the vehicle carries gear, sees trail time, or runs a changed wheel package.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Jeep Trucks Wrangler?
A period-style 2018 Jeep Trucks Wrangler tire choice starts with the original trim-based size, since the model uses different fitments across Sport, Moab, Rubicon, and Sahara versions. Keeping the correct size preserves the Jeep’s intended stance and wheel relationship more effectively than jumping to a different diameter or profile simply for appearance.
Among the currently available products, raised white letter BFGoodrich All-Terrain T/A KO2 tires offer a traditional off-road look that suits the Wrangler’s character. Buyers focused on originality of presentation should still compare that look against photos, dealer literature, or marque-specific references for the exact trim they are restoring or preserving.
How does tire construction affect the appearance of a restored 2018 Jeep Trucks Wrangler?
On a 2018 Jeep Trucks Wrangler, construction is less of an appearance debate than it would be on an older collector vehicle because the primary fitments are already radial. The visual differences are more likely to come from the tire’s size, sidewall style, and overall all-terrain design than from choosing between radial and bias-ply construction.
That means a restoration-minded owner should pay closer attention to maintaining the correct trim-based size and wheel diameter. A Wrangler can look noticeably different if the tire profile, width, or rim size changes, even when the replacement still falls within a broadly similar modern truck tire category.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Jeep Trucks Wrangler?
Yes, modifications can affect tire fitment on a 2018 Jeep Trucks Wrangler. Aftermarket wheels, suspension lifts, leveling kits, lowering changes, altered wheel offset, or body modifications can all change how a tire sits in the wheel opening and whether the original trim-based size is still the best match for the Jeep’s current setup.
A Wrangler that has been modified should be checked for wheel diameter, wheel width, steering clearance, and fender clearance before replacement tires are chosen. Even when the tire size on the sidewall looks familiar, the Jeep’s actual hardware may no longer match the original sub-model fitment assumptions.
What should I inspect before driving a 2018 Jeep Trucks Wrangler on new tires?
Before driving a 2018 Jeep Trucks Wrangler on new tires, inspect the wheel condition, confirm the lug hardware is correct, and make sure the tire size matches both the sub-model and the wheel diameter. Tire pressure should be set properly, and the vehicle should be checked for rubbing at full steering lock and through normal suspension movement.
It also helps to look over the Jeep’s suspension and steering components if the old tires showed uneven wear. A Wrangler used on trails or rough roads can develop alignment or component issues that affect how a new tire behaves, even when the replacement size itself is correct.
How often should tires on a 2018 Jeep Trucks Wrangler be inspected?
Tires on a 2018 Jeep Trucks Wrangler should be inspected regularly, not just when tread depth looks low. Pressure loss, cuts, punctures, sidewall damage, irregular wear, and impact damage from trail use or potholes can all show up before the tire looks obviously worn out from a distance.
Routine inspection is especially important on a Wrangler because many see mixed road and off-road use. Checking the tires before longer drives and after harder trail outings helps catch problems early, and it is a good time to confirm that the spare matches the Jeep’s wheel diameter and basic fitment needs as well.
