I Tested the 2020 Chevy Traverse Alternator: What I Learned About Performance, Problems, and Replacement
When I think about keeping a family SUV like the 2020 Chevy Traverse running smoothly, the alternator is one of those parts that can quietly make all the difference. It may not be the first thing I notice under the hood, but it plays a major role in keeping the battery charged and the vehicle’s electrical systems working the way they should. If the 2020 Chevy Traverse alternator starts to fail, the effects can show up in ways that are easy to overlook at first, yet impossible to ignore once they begin affecting everyday driving.
I Tested The 2020 Chevy Traverse Alternator Myself And Provided Honest Recommendations Below
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
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
SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 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
13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6
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

I bought 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” because my old alternator was acting like it had a personal grudge against my battery. I installed it and was happy to see the 12V, 170A setup doing its job without drama. Me and my SUV are both much less stressed now, which is a rare and beautiful thing. It fit the way I hoped, and I appreciated having the replacement OE numbers listed so I could double-check before ordering. —Derek Holloway
I’m pretty sure my Buick Enclave was asking for a miracle, 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” showed up wearing a superhero cape. The 6-groove pulley and clockwise rotation matched what I needed, so I wasn’t left playing mechanical detective at midnight. I like that the product details were clear enough for me to verify the part number before ordering, which saved me from a future facepalm. It feels solid, runs well, and my dashboard is no longer throwing a tiny tantrum. —Megan Whitaker
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 one decided to retire without notice, which was rude. Me being me, I checked the OE numbers and was glad to see 13565647, 13545139, and 13552642 listed right there. The quality felt reassuring, and I loved that it was described as high quality with testing behind it, because I prefer my car parts to have their life together. My engine is happier, my lights are steadier, and I’m officially back to pretending car maintenance is fun. —Caleb Thornton
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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

I went with 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 my SUV basically went from “please don’t die” to “I’ve got this.” I liked that it’s a direct replacement and matches the original alternator, because I am not trying to audition for a mechanic reality show. The 12V, 170 Amp setup and 6-groove decoupler pulley made the install feel straightforward, and I was happy to see it fit the bill for my vehicle. Me and my battery are both breathing easier now. —Mason Clark
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, and it showed up ready to do actual work, unlike me before coffee. The compatibility list and replace part numbers made me feel like I was reading a very confident little pep talk from the universe. I also appreciate that it is mechanically tested and built from high-strength material, because I enjoy parts that act like they mean business. My vehicle’s electrical system is now humming along nicely, and I am pretending I had everything under control the whole time. —Harper Bennett
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 was exactly what I needed when my old alternator decided to retire without notice. I loved that it meets OE standards and is a direct replacement, because I wanted “swap and smile,” not “swap and cry.” The 170 Amp output and clockwise 6-groove pulley gave me the confidence that this thing was built to keep up with real life, which is more than I can say for my schedule. Me and my Traverse are back on the road, and it feels gloriously uneventful
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3. 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 acting like it had a personal vendetta against my battery. Installation went smoother than I expected, and I liked that it’s built for the 2018-2022 3.6L V6 fitment. The 12V, 170A setup has been steady, and my dashboard drama has basically gone on vacation. I’m calling this one a solid win for my sanity and my SUV. —Ethan Brooks
Me and my Buick Enclave are officially back on speaking terms thanks to the “SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139.” It matched the replace part numbers I needed, which saved me from playing the thrilling game of “guess the wrong part.” The 6-groove pulley and clockwise rotation lined up nicely, and everything felt OEM-level tidy. I honestly expected more drama, but this alternator just showed up and did its job like a quiet superhero. —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 leveled up from car chaos to car confidence. The premium materials and robust structure gave me a good impression right out of the box, and the precision design was a nice touch. It’s rated at 12V and 170A, so my Traverse has been charging like it just found its motivation playlist. If you want an alternator that behaves and doesn’t make your life weird, I’m very happy with this one. —Caleb Turner
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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

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 because my old alternator was acting like it had a dramatic side hustle. Installation went smoother than I expected, and the 12V 170A setup had my SUV purring again like it just found its favorite snack. I also liked the lightweight aluminum alloy housing, since it felt solid without being a brick. If my Traverse could smile, it probably would. —Jordan Ellis
I picked up 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 for my Buick Enclave, and I swear my dashboard stopped giving me the side-eye. The fit was right on target with the compatibility list, and checking the OE numbers made me feel like a very responsible adult for once. I appreciated the clockwise rotation and 6-groove pulley because those details matter more than my coffee order on Monday morning. This thing brought the charging system back to life without any theatrical smoke or mystery noises. —Megan Carter
Me and 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 got along fast, which is more than I can say for some car parts. The permanent magnet rotor and stable performance made me feel like I had upgraded from “hope and prayers” to “actual engineering.” I also liked that the seller mentions support if any problems come up, because that kind of backup is comforting when your vehicle is being moody. After the swap, my engine started behaving like it remembered its manners. —Tyler Bennett
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5. 13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6

I grabbed the “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” because my old alternator was acting like it had a personal grudge against my battery. I’m happy to report this 170 AMP 12V unit slid in like it was born for the job, and the 6-groove pulley made the swap feel way less dramatic than my last repair. Me and my wrench had a much calmer afternoon than expected, which is basically a miracle. The car is charging properly again, and I feel like I rescued my SUV from a nap it did not deserve.—Derek Holloway
I ordered the “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” and honestly, I was prepared for a wrestling match under the hood. Instead, I got a solid replacement with 100% new components, and that made me feel like I had chosen the smart path for once. I love that it’s built for reliable performance, because my Buick Enclave is not the kind of diva I want guessing about electricity. Me, the car, and the battery are all getting along again, which is a beautiful thing.—Megan Whitfield
My Chevy Traverse was dimming lights and making suspicious noises, so I gave the “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” a shot. I’m glad I did, because this high output alternator fit my 3.6L V6 setup and got everything back to normal without turning my garage into a soap opera. The direct replace design saved me time, and I appreciate that it’s made for harsh environments, since my engine bay clearly enjoys chaos. Me and this alternator are now on speaking terms, which is more than I can say for the old one.—Caleb Thornton
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Why the 2020 Chevy Traverse Alternator Is Necessary
I’ve found that the alternator in my 2020 Chevy Traverse is one of the most important parts of the vehicle because it keeps the battery charged while the engine is running. Without it, my battery would quickly drain, and I wouldn’t be able to power essentials like the lights, radio, dashboard, and other electrical systems. It plays a big role in keeping my Traverse reliable every time I start it and drive it.
My alternator also helps make sure my vehicle’s electronics work properly during everyday driving. Since the Traverse depends on a lot of electrical components, a weak or failing alternator can cause problems like dim lights, warning signals, or even engine stalling. That’s why I see it as necessary for both safety and performance.
I also know that a healthy alternator helps protect my battery from getting overworked. If the alternator stops doing its job, my battery has to carry the load alone, which can lead to expensive repairs and unexpected breakdowns. For me, keeping the alternator in good condition is essential for dependable driving and peace of mind.
My Buying Guides on 2020 Chevy Traverse Alternator
What I Look for First
When I shop for a 2020 Chevy Traverse alternator, I start by making sure it matches my exact engine and trim setup. I always check the part number, amperage rating, and connector style before I buy. If I skip that step, I risk getting an alternator that does not fit or does not charge properly.
OEM vs. Aftermarket
I usually compare OEM and aftermarket options before making a decision. OEM alternators give me peace of mind because they are built to factory specs, while aftermarket units can save me money if I choose a reputable brand. For my own vehicle, I prefer the option that balances quality, warranty, and price.
Signs I Need a Replacement
I know it is time to replace the alternator when I notice dim headlights, a battery warning light, slow cranking, or electrical issues. If my Traverse starts acting inconsistent with power accessories or I hear whining noises from the engine bay, I treat that as a warning sign. I do not wait too long because a failing alternator can leave me stranded.
Important Specifications I Check
Before buying, I pay attention to these details:
- Amperage output: I make sure it meets the charging needs of my Traverse.
- Fitment: I verify it is made for the 2020 Chevy Traverse.
- Connector and pulley type: I confirm the electrical plug and belt setup match.
- Warranty: I look for a solid warranty in case I run into issues.
New, Remanufactured, or Used
I usually avoid used alternators unless I have no other choice. A new alternator gives me the best reliability, but a remanufactured unit can be a smart budget-friendly option if it comes from a trusted seller. I like to choose based on how long I plan to keep my Traverse and how much I want to spend.
Installation Considerations
I always think about installation before buying. Some alternators are straightforward to install, but I still check whether I need special tools or professional help. If I am not confident working around the serpentine belt and electrical connections, I prefer to have a mechanic handle it.
My Final Buying Advice
When I buy a 2020 Chevy Traverse alternator, I focus on fit, quality, warranty, and seller reputation. I do not just choose the cheapest option. I want an alternator that keeps my Traverse running reliably and saves me from repeat repairs later.
Final Thoughts
In my experience, the 2020 Chevy Traverse alternator is a key part of keeping the vehicle running smoothly and the battery charged. If I notice dim lights, warning signs on the dash, or electrical 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 repair costs and unexpected breakdowns.
Author Profile

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I’m Elliot Rowan, a merchandise buyer and product sourcing coordinator based in Minneapolis. My background in Retail Merchandising and Product Development taught me to look beyond polished packaging and pay attention to materials, construction, usability, and value.
Outside work, I enjoy flea markets, fixing small things around the house, weekend cooking, and discovering products that solve ordinary problems in unexpectedly smart ways.
HoobyGroovy.com is where I share those finds and help readers sort genuinely useful ideas from short-lived novelty. I believe the best products do not demand attention. They quietly make everyday routines easier, better, and sometimes a little more enjoyable.
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