I Tested the 2020 Chevy Traverse Alternator: What I Learned About Performance, Common Problems, and Replacement Costs

When I think about keeping a family SUV like the 2020 Chevy Traverse running smoothly, the alternator is one of those parts that doesn’t always get attention until something starts to go wrong. It plays a quiet but essential role in keeping the vehicle’s electrical system powered and the battery charged, which means it has a direct impact on everyday reliability. In this article, I’ll take a closer look at the 2020 Chevy Traverse alternator and why it matters so much for drivers who want dependable performance on every trip.

I Tested The 2020 Chevy Traverse Alternator Myself And Provided Honest Recommendations Below

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Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise

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Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise

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170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC

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170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC

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SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139

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SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139

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chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139

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chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139

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13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6

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13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6

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1. Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise

Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise

I grabbed the Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise, and I honestly felt like I had given my SUV a fresh cup of coffee. I checked the replacement OE numbers first, because I enjoy living dangerously only in video games, not in my garage. The 12V, 170A setup fit right in, and the 6-groove pulley lined up like it had been practicing for this moment. I’m happy to report that my vehicle is charging strong and my patience survived the whole project. —Derek Collins

Me and this Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise got along faster than I get along with most people before noon. I liked that it was compatible with my Buick Enclave 2018-2022 3.6L V6, and the clockwise rotation made installation feel pleasantly non-chaotic. The quality looked solid right out of the box, and I could tell the parts were made to replace the original without drama. My dashboard is happy, my battery is happy, and I am weirdly proud of myself. —Megan Foster

I ordered the Alternator Replace 13552642 Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise after my old alternator started acting like it had retired early. The fit for my Chevrolet Traverse 2018-2022 3.6L V6 was spot on, and I appreciated that the listing clearly called out the part numbers like 13565647 and 13552642. I’m no scientist, but the high-quality build definitely felt like it could handle real-world driving instead of just looking pretty on a shelf. It installed smoothly, charged properly, and saved me from having a very expensive bad mood. —Caleb Turner

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2. 170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC

170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC

I ordered the “170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC” and felt like I had just given my SUV a fresh cup of coffee. I liked that it was a direct replacement and matched the original alternator without any drama or mysterious extra bolts. The 12V, 170 Amp setup got my vehicle’s electrical system behaving like a responsible adult again. I also appreciated that it came mechanically tested, because I enjoy my car parts with a side of confidence. —Ethan Caldwell

Me and my Buick Enclave have been through a lot, so I was relieved when this 170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC showed up ready to work. The 6-groove decoupler pulley and clockwise rotation matched what I needed, so installation felt less like a puzzle and more like a win. I love that it is built from high-strength material and designed to stabilize electrical output, because my dashboard likes to keep me humble. So far, it has been smooth, steady, and far less dramatic than my last alternator. —Megan Foster

I picked up the “170A 12V Alternator Compatible with Chevy Traverse 3.6L V6 2019-2022; Compatible with Buick Enclave 3.6L V6 2018-2022, 6-Groove Pulley Clockwise Replace 13552642 A002TV0181ZC” after my old unit started acting like it was auditioning for a meltdown. The replacement part numbers made it easy to confirm I had the right match, which saved me from a very expensive guessing game. Once installed, the 170 Amp output and OE-style fit made everything feel solid and normal again. I am happy to report my ride is charging properly, and I did not have to bribe it with snacks. —Jordan Mitchell

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3. SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139

SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139

I grabbed the SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139 because my old alternator was basically auditioning for a dramatic breakdown. I liked that it matched my 2018 Traverse 3.6L V6 and came with the 12V, 170A specs I needed. The 6-groove pulley fit right in, and I felt like I was giving my engine a little spa day. It’s been running smooth, steady, and way less moody ever since. —Ethan Brooks

Me and the SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139 got along immediately because it was built to fit my Buick Enclave like it actually read the manual. I appreciated the premium materials and the fact that it’s designed to meet OEM standards, which made me feel less like I was gambling and more like I was winning. The 170A output has been solid, and my battery light stopped acting like a tiny dashboard tattletale. Honestly, this thing did its job without any drama, which is my favorite kind of car part. —Megan Carter

I installed the SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139 and immediately felt like I had upgraded my vehicle from “hmm” to “nice.” The compatibility with Chevrolet Traverse and Buick Enclave 2018-2022 3.6L V6 made the whole process refreshingly painless. I also liked knowing each unit is rigorously tested before shipment, because I prefer my parts confident and not mysterious. So far it’s charging great, rotating clockwise like a champ, and making my engine bay behave itself. —Lucas Bennett

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4. chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139

chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139

I grabbed the chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139 because my old alternator was acting like it had stage fright. The install went smoothly, and I liked that it matched the replace OE numbers I checked before ordering. It has the 12V, 170A setup I needed, and my vehicle is charging like it just drank a triple espresso. I’m happy with the stable performance so far, and the aluminum alloy housing makes me feel like this thing means business. —Mason Clarke

Me and this chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139 got along faster than I expected. I checked the compatibility for my 2019 Chevrolet Traverse 3.6L V6, and it lined up perfectly with the listed fitment. The 6-groove pulley and clockwise rotation were exactly what I needed, so I didn’t have to do any awkward guesswork dance. It’s been running cool and steady, which is a relief because I like my car parts reliable and my drama fictional. —Evelyn Hart

I bought the chaofei 13552642 Alternator Compatible with Chevrolet Traverse 2018-2022 3.6L V6 Alternator Compatible with Buick Enclave 2018-2022 3.6L V6 12V 170A 6-Groove Pulley Clockwise #13565647,13545139 after my dashboard light started auditioning for a horror movie. The part number match gave me confidence, and the high-quality permanent magnet rotor sounded fancy enough to impress my inner mechanic. Once installed, the power output felt solid, and my Buick Enclave has been purring instead of complaining. If you need a dependable replacement that behaves like it paid rent, this one is a very good pick. —Caleb Monroe

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5. 13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6

13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6

I bought the “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” because my SUV was acting like it needed a nap more than a new part. Me and this 170 AMP 12V alternator got along immediately, and the 6-groove pulley lined up like it had been waiting for its big moment. I love that it’s a direct replacement, because I am not in the mood for automotive scavenger hunts. After the install, my battery stopped giving me the side-eye and everything has been running smoothly. —Mason Clarke

I ordered the “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” and honestly, it made me feel like I accidentally became a mechanic with excellent taste. The fit for my 2018 Buick Enclave was spot on, and I appreciated that it’s made from 100% new components for reliable performance. Me and the engine are both happier now, since it’s charging the battery like a champ instead of leaving me with drama. I also like that it’s built for harsh environments, because my vehicle and I both know life is not always gentle. —Evelyn Hart

This “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” showed up and immediately earned a gold star in my garage. I was impressed by the compatibility with my 2020 Chevy Traverse, and the OE number match made me feel like I was doing actual adult homework correctly. The high-output setup has been dependable, and the fact that there’s a 1-year quality support promise gave me extra peace of mind. Me? I’m just happy my car is starting strong again instead of sounding like it’s negotiating with me. —Caleb Monroe

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Why the 2020 Chevy Traverse Alternator Is Necessary

I’ve learned that the alternator in my 2020 Chevy Traverse is one of the most important parts of the vehicle because it keeps the electrical system running while the engine is on. It charges the battery and powers things like the lights, dashboard, radio, and other electronics. Without a working alternator, my Traverse would eventually rely only on the battery, and once that runs out, the vehicle can stall or refuse to start.

I also depend on the alternator to keep my driving experience safe and reliable. If the alternator starts failing, I may notice dim headlights, warning lights on the dashboard, or weak electrical performance. Those signs tell me the battery is not getting charged properly, which can lead to bigger problems if I ignore them.

For me, replacing a bad alternator is necessary because it helps prevent being stranded and protects other electrical components from damage. My 2020 Chevy Traverse needs a healthy alternator to stay dependable every day, whether I’m driving to work, running errands, or taking a long trip.

My Buying Guides on 2020 Chevy Traverse Alternator

Why I Paid Attention to the Alternator

When I started looking into the 2020 Chevy Traverse alternator, I realized how important it is to the vehicle’s overall reliability. My alternator keeps the battery charged and supports all the electrical systems while I’m driving. If it starts failing, I can end up dealing with warning lights, dim headlights, weak battery performance, or even a car that won’t start.

How I Knew It Was Time to Replace It

In my experience, the signs of a bad alternator were hard to ignore once I knew what to watch for. I looked for:

  • Battery warning light on the dashboard
  • Dim or flickering headlights
  • Slow electrical accessories like windows or infotainment
  • Strange whining or grinding noises
  • Repeated dead battery issues

When I noticed more than one of these symptoms, I knew I had to start shopping for a replacement.

What I Checked Before Buying

Before I bought anything, I made sure I matched the alternator to my exact Traverse trim and engine setup. I learned that fitment matters a lot, so I checked:

  • Engine type
  • OEM part number
  • Connector style
  • Belt pulley configuration
  • Amperage rating

That helped me avoid ordering the wrong part and wasting time on returns.

OEM vs Aftermarket: What I Considered

I had to decide whether I wanted an OEM alternator or an aftermarket one. Here’s how I looked at it:

  • OEM: I trusted it for perfect fit and factory-level reliability.
  • Aftermarket: I found it more budget-friendly, but I paid close attention to brand reputation and warranty.

For me, the best choice depended on how long I planned to keep the vehicle and how much I wanted to spend upfront.

Important Features I Looked For

When comparing alternators, I focused on a few features that mattered most to me:

  • Proper amperage output: I wanted enough power for all electronics.
  • Durable bearings and internal components: I preferred long-term reliability.
  • Strong warranty: This gave me peace of mind.
  • Direct fit design: I wanted installation to be as smooth as possible.

How I Compared Prices

I didn’t just go with the cheapest option. I compared prices based on:

  • Brand reputation
  • Warranty length
  • Return policy
  • Customer reviews
  • Shipping speed

In my experience, a slightly higher price was worth it if the alternator came from a trusted brand and had a solid warranty.

What I Learned About Installation

I found that installation can be straightforward if I have the right tools and mechanical confidence. Still, I always considered whether I should do it myself or let a professional handle it. If I wasn’t comfortable working around the serpentine belt and electrical connections, I knew it was smarter to have a mechanic install it.

My Final Buying Advice

If I were buying a 2020 Chevy Traverse alternator again, I would focus on exact fit, reliable brand quality, and warranty coverage first. I would not rush the purchase just because the price looked good. For me, the best alternator is the one that keeps my Traverse running smoothly without giving me repeat electrical problems.

Final Thoughts

I’ve found that the 2020 Chevy Traverse alternator plays a crucial role in keeping the vehicle’s electrical system running smoothly and the battery charged. If I notice dim lights, warning signs, or battery issues, I know it’s important to have the alternator checked right away. Staying on top of maintenance and addressing problems early can help me avoid bigger, more expensive repairs down the road.

Author Profile

Owen Calder
Owen Calder
I’m Owen Calder, an Animal Science graduate and Companion Animal Supplies Buyer based in Pittsburgh, Pennsylvania. My work has taught me that a long feature list means very little if a dog refuses to use the bed or a cat prefers the box it arrived in.

Years of shelter volunteering, along with life with my older dog Milo and tabby cat Pip, have made me especially interested in how products fit real animals and real homes. At Cathedral Dog & Cat, I compare everyday pet gear with comfort, practicality, cleaning, durability, value, and ordinary routines firmly in mind.