Jeep Wranglers are known for their off-road capability and rugged performance. An important component of any Wrangler is having the right tire size to handle different terrains and driving conditions.
When buying new tires, it’s crucial to understand the stock tire size that came with your Wrangler model and year.
Tire sizes follow a standard sizing metric that uses letters and numbers to indicate the tire’s width, aspect ratio, construction, wheel size, load index and speed rating. For example, a common size is LT245/75R16/C. Breaking this down:
- LT indicates a light truck tire
- 245 is the tire width in millimeters
- 75 is the aspect ratio (sidewall height vs. width)
- R designates a radial tire
- 16 is the wheel diameter in inches
- C is the load index and speed rating
Larger tire sizes can provide more traction and ground clearance for off-roading, but they may also reduce acceleration and fuel economy on-road. Most Wrangler models come with modest stock sizes optimized for versatility.
When upgrading your tires, make sure to research the ideal size for your Wrangler’s year, model, purpose and any modifications. This guide will cover common stock sizes as a starting point.
Tire Sizes for Wrangler YJ Models (1987-1995)
The Jeep Wrangler YJ was introduced in 1986 as a new generation of the popular CJ off-roader. It featured a wider stance and track than previous CJ models. Here are the original factory tire sizes:
- 1987-1990 Jeep Wrangler YJ – P215/75R15
- 1991-1995 Jeep Wrangler YJ – P225/75R15
The P indicates a passenger vehicle tire, while 215 and 225 reflect the tire width in millimeters. Both sizes used the same 15-inch wheel diameter and an aspect ratio of 75 (sidewall height is 75% of width).
The 15-inch wheels with these tire sizes provided good clearance and traction for light off-roading. Many YJ owners would upgrade to larger 30-33” tires for more extreme terrain. It’s crucial to recalibrate the speedometer if significantly increasing tire diameter.
Tire Sizes for Wrangler TJ Models (1997-2006)
In 1997, the Wrangler TJ arrived with an all-new chassis, suspension and styling. The TJ featured coil spring suspension for a smoother on-road ride compared to the YJ’s leaf springs. Here are the stock TJ tire sizes by year:
| Year | Tire Size |
|---|---|
| 1997-1999 | P225/75R15 |
| 2000-2002 | 30×9.50R15 LT |
| 2003-2006 | P225/75R16 |
The early TJs used 15” wheels and 75-series street tires. In 2000, they switched to a 30” diameter off-road tire still on a 15” wheel. The 2003 redesign brought back 16” wheels and a 75-series street tire, but with a taller 75R16 size.
TJ owners looking to upgrade will often choose 33-35” tires combined with a suspension lift. As with the YJ, it’s important to recalibrate your speedometer if increasing tire diameter significantly.
Tire Sizes for Wrangler JK Models (2007-2018)
The Jeep Wrangler JK brought more comfort and refinement when it arrived for the 2007 model year. The JK featured an all-new body-on-frame chassis and suspension. Here are the OE tire sizes by model:
| Model | Tire Size |
|---|---|
| Wrangler JK Sport | 225/75R16 |
| Wrangler JK Sahara | 255/70R18 |
| Wrangler JK Rubicon | LT255/75R17 |
| Wrangler JK Unlimited Sport | 245/75R17 |
| Wrangler JK Unlimited Sahara | 255/70R18 |
| Wrangler JK Unlimited Rubicon | LT255/75R17 |
The JK models came with a range of tire sizes depending on trims and body styles. The standard 2-door came with 16” or 17” wheels, while the 4-door Unlimited could fit 17” or 18” wheels from the factory.
As with previous generations, many JK owners install lifted suspensions and larger 33-37” tires for increased off-road capability. Always make sure such modifications are installed properly without compromising handling or drivability.
Tire Sizes for Wrangler JL Models (2018-Present)
The current JL Wrangler arrived in 2018 with an emphasis on improving comfort and technology while maintaining legendary off-road performance. Here are the stock tire sizes by model:
| Model | Tire Size |
|---|---|
| Wrangler JL Sport | 245/75R17 |
| Wrangler JL Sport S | 245/75R17 |
| Wrangler JL Sahara | 255/70R18 |
| Wrangler JL Rubicon | LT285/70R17 |
| Wrangler JL Unlimited Sport | 245/75R17 |
| Wrangler JL Unlimited Sport S | 245/75R17 |
| Wrangler JL Unlimited Sahara | 255/70R18 |
| Wrangler JL Unlimited Rubicon | LT285/70R17 |
Again, different trims and body configurations call for different tire sizes. The Sport and Sport S use 17” wheels, while Sahara models have 18” wheels. The Rubicon is geared for off-road use with its 17” LT all-terrain tires.
As with older generations, many JL owners upgrade to larger tire and wheel packages, usually with a lift kit. Always make sure you research proper tire fitment and get professional installation to avoid issues.
OEM Tire Brands for Jeep Wranglers
Along with paying attention to size, knowing your Jeep’s original tire brand can ensure proper replacement tires are selected:
Goodyear Wrangler – One of the most common OE tires on Wranglers thanks to the shared Wrangler name. Multiple sizes are offered. Provides solid overall performance.
Bridgestone Dueler – Selected as OE tires for some Wrangler models. The Dueler offers balanced on- and off-road handling. Certain sizes specify “Dueler HT” for highway terrain use.
Firestone Destination – Long-time Jeep partner Firestone equips certain models with Destination tires from the factory. Made for all-terrain performance.
BFGoodrich All-Terrain T/A KO2 – Considered one of the best all-terrain tires, the BFG KO2 comes standard on the Rubicon trim since 2018. Provides excellent off-road traction without compromising on-road manners.
Continental ContiProContact – Some Luxury-oriented Wrangler models may come equipped with ContiProContact highway tires from Continental. Focus on low noise and comfort.
Always consult your owner’s manual or factory documentation to determine which tire brand and model was original equipment on your Jeep. This can help narrow your replacement tire search.
Tire Sizes for Lifted Jeep Wranglers
One popular modification for Jeep Wranglers is installing a suspension lift kit along with larger tires. This can increase ground clearance for extreme off-roading. Here are some typical tire sizes used with lift kits:
2-3 inch lift – 33-35 inch tires, such as LT285/70R17 or LT315/70R17
4-6 inch lift – 35-37 inch tires, such as LT325/70R18 or 35×12.50R17
6+ inch lift – 37+ inch tires, such as 37×12.50R17 or 40×13.50R17
Keep in mind that the taller tire diameter from lifting will affect your gearing and accuracy of your speedometer. Regearing the differentials and recalibrating the speedo is highly recommended when running significantly larger tires.
A proper lift kit matched with the right tire size is essential to maintain proper suspension geometry and handling. Always research reputable lift kits and have installation performed by qualified mechanics.
Tire Pressure Recommendations for Jeep Wranglers
Maintaining the correct tire pressure is vital for performance, handling and extending the life of your tires. Here are some general tire pressure guidelines for Jeep Wranglers based on usage:
Everyday on-road driving – Inflate to door jamb sticker pressure (typically 30-35 PSI)
Light off-roading – Reduce pressure 5-10 PSI from door jamb pressure
Rock crawling or extreme off-road – Optimal traction by reducing pressure to 15-25 PSI
Sand driving – Decrease pressure 15-20 PSI from door jamb sticker for flotation
The best all-around tire pressure for mixed on- and off-road Wrangler use is typically around 28-32 PSI. Always inflate tires when they are cold for the most accurate pressure reading. Investing in a portable compressor and pressure gauge can be highly beneficial for off-road adventures.
Proper inflation maximizes tire life, fuel economy and traction for your intended use. Make sure to monitor tread depth and inspect for signs of uneven wear or damage during rotations.
Replacing Jeep Wrangler Tires with Different Sizes
Changing your Jeep Wrangler’s tire size requires careful consideration:
Speedometer and Odometer Accuracy – The speedometer and odometer are calibrated for the original tire size. Taller or shorter replacement tires will cause inaccurate readings. Speedometer recalibration is advised when changing more than 3% diameter.
Gearing and Acceleration – Larger tires require more power to turn at the same speed, potentially hindering acceleration. Conversely, smaller tires reduce torque at the wheels.
Suspension Geometry – Coil and control arm angles are designed around OE tire size. Different sizes can alter suspension geometry and handling.
Steering Sensitivity – Larger tires typically increase steering effort and reduce sensitivity to input. Smaller tires quicken response.
Braking – Larger tires require more braking force to stop, while smaller tires reduce stopping distances.
Consult a professional mechanic if you plan to install tires more than 1” diameter difference from stock size. They can assess required adjustments to ensure safe function and handling.
Common Tire Issues with Jeep Wranglers
Operating a Jeep Wrangler off-road can take a toll on tires over time. Be aware of these common tire wear issues:
- Cupping – Tread grooves form a wavy pattern – indicates worn shocks/struts
- Feathering – Tread wears thin on the edges – points to alignment issues
- Scalloped Tires – Wavy wear around the circumference – signals worn ball joints
- Sidewall Damage – Cracks or gouges from off-road obstacles
- Irregular Wear – Uneven tread depth across tire – failure to rotate
- Punctures – Holes and tears in tread or sidewalls – sealant can temporarily repair to get home
Monitoring wear patterns and damage provides early warning when suspension or drivetrain components need attention. Addressing issues promptly maximizes tire longevity.
Resources:
https://tiresize.com/tires/Jeep/Wrangler/
https://en.wikipedia.org/wiki/Jeep_Wrangler
https://www.autopadre.com/tire-and-wheel-sizes/jeep-wrangler
