If you drive a Jeep Wrangler, you probably enjoy adventure, off-roading, and the freedom to explore. But what happens when you’re out on a trail and your tire goes flat? That’s when a spare tire becomes your best friend. Many drivers overlook this essential backup until they really need it. Choosing the right spare for your Wrangler isn’t as simple as grabbing any tire, though. Let’s break down everything you need to know about selecting, carrying, and caring for a spare tire on your Jeep Wrangler.
Why A Spare Tire Is Essential For Jeep Wrangler Owners
A Jeep Wrangler is designed for tough terrain, but even the best tires can get damaged by rocks, nails, or deep mud. Roadside assistance might be hours away if you’re off the beaten path. That’s why having a reliable spare is not just helpful—it’s necessary.
Wrangler tires are usually larger than standard SUV tires. Matching the size and type ensures your vehicle handles safely, especially if you have four-wheel drive. Using a mismatched spare can damage your drivetrain or cause handling problems.
Many Wrangler models come with a spare, but some newer models or customized Jeeps might not. Double-check before you hit the road or trail.
Types Of Spare Tires For Jeep Wrangler
Not all spares are the same. Here’s a quick look at the main types you’ll find for your Jeep:
| Type | Size | Best Use | Pros | Cons |
|---|---|---|---|---|
| Full-Size Spare | Same as regular tires | Off-road, daily driving | Perfect match, safe for long-term use | Heavier, takes more space |
| Temporary/Donut | Smaller, lighter | Short emergency use | Lighter, easier to store | Not safe for off-road, limited speed/distance |
| Space Saver | Narrower than stock tires | City driving only | Saves space, reduces weight | Poor off-road performance |
For most Wrangler owners, a full-size spare is the safest and most practical option.
How To Choose The Right Spare Tire
A good spare for your Wrangler should match your main tires as closely as possible. Here’s what you need to check:
- Tire Size: Match the numbers on your main tires (for example, 255/75R17).
- Tread Type: If you use all-terrain or mud-terrain tires, your spare should be the same.
- Rim Size: The rim must fit your Jeep’s bolt pattern and size.
- Load Rating: Ensure your spare can handle the weight of your vehicle.
Here’s a quick comparison of common Wrangler tire sizes:
| Wrangler Model | Common Stock Tire Size | Spare Compatibility |
|---|---|---|
| JK (2007–2018) | 255/75R17 | Full-size spare recommended |
| JL (2018–present) | 245/75R17 | Full-size spare recommended |
| Older Models | Various (215/75R15, etc.) | Match to fitted tires |
Non-obvious tip: If you upgrade your main tires to a larger size, always upgrade your spare too. Many forget this and end up with a useless backup.
Where And How To Mount Your Spare Tire
Jeep Wranglers usually have a rear tailgate mount for the spare. This keeps the tire accessible and frees up cargo space.
Some owners use aftermarket tire carriers for larger or heavier tires. These distribute the weight better and reduce stress on the tailgate hinges. If you run oversized tires, consider a reinforced carrier or bumper-mounted option.
A few drivers store their spare inside the cargo area for theft protection, but this reduces space for gear.
Watch out: Don’t overload your tailgate. Too much weight can cause it to sag or damage the hinges.
Caring For Your Spare Tire
A spare is only useful if it’s in good condition. Here’s how to keep it ready:
- Check air pressure monthly: Spares often lose air over time.
- Inspect for cracks, dry rot, or damage: Sun and weather can ruin a tire even if you never use it.
- Rotate with main tires: Every 6,000–8,000 miles, include the spare in your rotation pattern. This keeps wear even.
- Replace with age: Even if unused, most spares should be changed after 6–10 years.
Many owners forget to check their spare. Don’t be that person who discovers a flat or rotten spare in the middle of nowhere.
Common Mistakes With Jeep Wrangler Spare Tires
- Using the wrong size: Even a small difference can cause drivetrain damage.
- Ignoring the carrier’s weight limit: Oversize tires can break stock mounts.
- Not maintaining air pressure: A flat spare is as bad as no spare.
- Leaving an old tire as a spare: Rubber ages, and old tires can fail suddenly.
- Not securing the tire: An unsecured spare can become a hazard in an accident.
Non-obvious insight: After a flat, always repair or replace your main tire quickly. Don’t drive long-term on the spare, even if it’s full-size. Spares are backups, not permanent solutions.
Cost Of Spare Tires For Jeep Wrangler
Prices depend on size, brand, and type. Here’s a price overview:
| Tire Type | Average Price (USD) |
|---|---|
| Full-Size All-Terrain | $180–$350 |
| Full-Size Mud-Terrain | $220–$400 |
| Temporary/Donut | $80–$120 |
Factor in mounting and balancing, which usually adds $20–$40.
Frequently Asked Questions
Why Can’t I Use A Smaller Spare On My Jeep Wrangler?
Using a smaller spare can confuse your Jeep’s drivetrain, especially with 4WD. It causes uneven rotation and could damage expensive parts. Always use a matching, full-size spare whenever possible.
How Often Should I Check My Spare Tire’s Air Pressure?
Check your spare tire air pressure at least once a month. Also, check before long trips or off-road adventures. Tires can lose pressure slowly, even when not in use.
Can I Store My Spare Tire Underneath The Wrangler?
Most Wranglers do not have under-vehicle storage like some trucks. The tailgate mount is standard, but some aftermarket kits allow for underbody mounting. This is rare and less practical due to ground clearance issues.
Should I Rotate My Spare Tire With The Other Four Tires?
Yes, if your spare is full-size and matches your main tires, include it in your regular rotation. This prevents uneven wear and keeps all five tires in good condition.
What Should I Do If My Spare Tire Is Old But Never Used?
Tires age even if they’re never driven. If your spare is over 6 years old, consider replacing it. Look for cracks or signs of dry rot, as these can make the tire unsafe.
A reliable spare tire keeps your Jeep Wrangler ready for anything—city commutes or wild trails. Choose the right size, maintain it well, and you’ll never be left stranded. For more on tire safety, check the National Highway Traffic Safety Administration.
