Why won’t my Diplomat battery hold a charge?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old Diplomat battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much do DieHard batteries cost for your Dodge Diplomat?

You can find affordable Diplomat batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.

How long is a car battery good for?

Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.

What is the white, crusty substance accumulating on my Diplomat’s battery post?

If you notice white, crusty stuff around the battery terminals of your Diplomat, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your Diplomat’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded Diplomat battery terminal?

To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your Diplomat owner’s manual for instructions on how to do so.

Where can I find a battery for my Diplomat?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Diplomat batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

Car Batteries for 1987 Dodge Diplomat

Get a New Dodge Battery

Get a New Dodge Diplomat Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1987 Dodge Diplomat today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1987 Dodge Diplomat

Not sure what battery to get for your Dodge Diplomat? Check the chart to find the right car battery size and cold cranking amps for your Diplomat.

Battery	Engine	Warranty		Cold Cranking Amps
34/78-4	V8/5.2L	Replacement 24 months	Performance months	800
34FT-2	V8/5.2L	Replacement 36 months	Performance months	800
34-AGM	V8/5.2L	Replacement 36 months	Performance months	740

BATTERIES
V8/5.2L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/5.2L - Battery: 34FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.2L - Battery: 34-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for Dodge Diplomat Car Batteries

Sadly, your Dodge Diplomat won't last forever. Neither will its battery. Generally, car batteries last from three to five years. You want to replace your 1987 Dodge Diplomat battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A lagging starter, a blinking battery or check engine light, bloated battery case, corroded battery posts, and subpar electrical performance can all signal that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 1987 Dodge Diplomat running! Car batteries are one of our many specialties! Our expert technicians understand Dodge service recommendations for Diplomat battery CCAs and reserve capacity. Get help choosing the battery size that's best for your Diplomat, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your Diplomat

We know what’s best for your Dodge Diplomat, which is why we carry just that. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard Diplomat batteries surpass expectations using state-of-the-art advancements to fuel the increasing power requirements of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Dodge Diplomat and drive with confidence knowing that performance will be there when you're counting on it. That's the kind of battery we deliver.

Caring for a New Dodge Diplomat Battery

Did you recently have a new 1987 Dodge Diplomat car battery installed? Good thinking! Give your new car battery the best start with proper care. flipping the dome lights and headlights off when exiting the car, limiting short trips, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.