2003 Jeep Wrangler Batteries

Battery Size & Replacement for 2003 Jeep Wrangler

Need more info about Jeep Wrangler batteries? Use this chart to find the right battery size and CCAs for your Jeep Wrangler.

Battery Engine Warranty Cold Cranking Amps
MT-34 L4/2.4L Replacement 24 months Performance 60 months 700
MTP-78DT L4/2.4L Replacement 30 months Performance 72 months 800
MT-34 L6/4.0L Replacement 24 months Performance 60 months 700
MTP-34 L6/4.0L Replacement 30 months Performance 72 months 800
BATTERIES

L4/2.4L

- Battery: MT-34

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 700

L4/2.4L

- Battery: MTP-78DT

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 800

L6/4.0L

- Battery: MT-34

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 700

L6/4.0L

- Battery: MTP-34

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 800

Buying a Replacement Battery for Jeep Wrangler

Sadly, your Jeep Wrangler won't last forever. Neither will its battery. Generally, car batteries last from three to five years. You want to replace your 2003 Jeep Wrangler battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A lagging starter, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights may all indicate that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 2003 Jeep Wrangler. Car batteries are one of our many specialties! Our technicians are well-acquainted with Jeep’s service specs for Wrangler car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Should You Choose Interstate Batteries for Your Wrangler?

Your Jeep Wrangler deserves the best, which is why we carry just that. We replace over 700,000 batteries each year with America's #1 replacement battery from Interstate Batteries. Interstate has been an battery-industry leader for durability, performance, and innovation for many years. That’s why it’s unsurprising to find an Interstate Battery in the engine of a Jeep Wrangler. Their entire line of powerful offerings can be found in forklifts commercial trucks, utility vehicles, and boats! You need a car battery that's just as dependable as your 2003 Jeep Wrangler. That's Interstate: Outrageously Dependable®.

Caring for a New Jeep Wrangler Battery

Did you recently have a new 2003 Jeep Wrangler car battery installed? Great job! Give your new car battery the best start with proper care. ensuring all the lights are turned off before you leave the car, decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Top Wrangler Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a battery question that's unique to your Jeep Wrangler battery, pay us a visit. Our technicians have the answers.

  • Why doesn’t my Wrangler battery stay charged? A battery that won't hold a charge is almost as good as dead. The battery may be too old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
  • What happens to my old Wrangler battery? We recycle it, taking care of both your car and the Earth.
  • What’s the cost of Jeep Wrangler batteries? Get affordable prices on Jeep Wrangler batteries by using one of our limited-time battery deals. The best part is, every Interstate Battery has both a maintenance-free performance warranty and a limited-time free replacement.

Get a Battery for Your Jeep Wrangler

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2003 Jeep Wrangler today and schedule a quick installation at Firestone Complete Auto Care.