Why doesn’t my K3500 battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop in for a free battery check at your local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old K3500 battery?

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

What’s the cost of DieHard batteries for GMC K3500s?

You can find affordable K3500 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?

The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.

Why is there white, crusty buildup on my K3500’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your K3500 car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean corrosion off my K3500 vehicle battery?

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 K3500 owner’s manual for instructions on how to do so.

Where can I purchase K3500 batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install K3500 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 1986 GMC K3500

Get a New GMC Battery

GMC K3500 Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 1986 GMC K3500 at Firestone Complete Auto Care.

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Battery Size & Replacement for 1986 GMC K3500

Not sure what battery to get for your GMC K3500? Check the chart to find the right car battery size and cold cranking amps for your K3500.

Battery	Engine	Warranty		Cold Cranking Amps
78-1	L6/4.8L	Replacement 24 months	Performance months	700
78FT-2	L6/4.8L	Replacement 36 months	Performance months	800
78-AGM	L6/4.8L	Replacement 36 months	Performance months	740
75-2	V8/5.7L	Replacement 24 months	Performance months	650
75FT-3	V8/5.7L	Replacement 36 months	Performance months	700
78-AGM	V8/5.7L	Replacement 36 months	Performance months	740
75-2	V8/6.2L	Replacement 24 months	Performance months	650
78FT-2	V8/6.2L	Replacement 36 months	Performance months	800
78-AGM	V8/6.2L	Replacement 36 months	Performance months	740
78-1	V8/7.4L	Replacement 24 months	Performance months	700
75FT-3	V8/7.4L	Replacement 36 months	Performance months	700
78-AGM	V8/7.4L	Replacement 36 months	Performance months	740

BATTERIES
L6/4.8L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
L6/4.8L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L6/4.8L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.7L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/5.7L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/5.7L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/6.2L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/6.2L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/6.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/7.4L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V8/7.4L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/7.4L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buying a Replacement Battery for GMC K3500

You can pretty much drive your GMC K3500 until you don't want to anymore. But your K3500's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. You want to replace your 1986 GMC K3500 battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A lagging starter, a blinking battery or check engine light, bloated battery case, corroded battery terminals, or dim headlights can all be signs that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 1986 GMC K3500. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand GMC service recommendations for K3500 battery CCAs and reserve capacity. Get help figuring out the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for K3500s

We know what’s best for your GMC K3500, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard K3500 batteries surpass expectations and house the latest technology to meet the increasing power needs of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your K3500 and have the peace of mind that performance will be there when you're counting on it. That's the kind of battery we deliver.

Making Your K3500’s New Battery Last

Did you recently have a new 1986 GMC K3500 car battery installed? Congrats! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by decreasing the number of short trips you take, keeping the battery posts corrosion-free, and not playing the radio or using other electronics when the engine is turned off.

Commonly Asked K3500 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 GMC K3500 battery, stop by your nearest store. Our technicians are happy to help.

Why doesn’t my K3500 battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop in for a free battery check at your local Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old K3500 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for GMC K3500s? You can find affordable K3500 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? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
Why is there white, crusty buildup on my K3500’s battery post? A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your K3500 car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.
How do I clean corrosion off my K3500 vehicle battery? 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 K3500 owner’s manual for instructions on how to do so.
Where can I purchase K3500 batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install K3500 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.