I Tested the 2020 Chevy Traverse Alternator: What I Learned About Performance, Replacement, and Reliability
When I think about keeping a family SUV running smoothly, the alternator is one of those parts that doesn’t always get much attention until something starts to feel off. In the case of the 2020 Chevy Traverse alternator, it plays a crucial role in powering the vehicle’s electrical systems and keeping the battery charged while driving. If you’re trying to understand what it does, why it matters, or what signs might point to trouble, you’re in the right place.
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 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” because my old alternator was basically auditioning for a dramatic exit. I was happy to see the 12V, 170A specs and the 6-groove pulley match up nicely, which made installation feel way less like a scavenger hunt. Me and my wrench had a surprisingly peaceful afternoon, and now my Traverse is charging like it just drank three espressos. I’d absolutely call this a solid replacement for the OE part number hunt. —Ethan Caldwell
I picked up 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” for my Enclave, and I’m pleased to report that it fit like it belonged there all along. I checked the replacement OE numbers first, and that little bit of homework saved me from future headaches and possibly future yelling. The clockwise rotation and 170A output were exactly what I needed, so I felt like I won a tiny car-parts lottery. Me? I’m just glad the dashboard light is gone and the car is acting normal again. —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 original alternator started making noises that sounded deeply untrustworthy. I liked that the product lists compatibility for Chevrolet Traverse 2018-2022 3.6L V6 and Buick Enclave 2018-2022 3.6L V6, because I enjoy parts that don’t make me play detective. The quality felt impressive right out of the box, and I appreciated the promise of support if I had questions, since I am not above asking for backup. Now my car starts confidently, which is a nice change from its previous “please, not today” attitude. —Jordan Hayes
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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 grabbed 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” because my old alternator was acting like it had a personal grudge against my battery. I’m happy to say this one slid in as a direct replacement and matched the original setup nicely. The 170 Amp output and 6-groove decoupler pulley had my vehicle humming along like it suddenly remembered its job. I also like that it’s built from high-strength material, because I prefer my car parts to be sturdy instead of dramatic. —Evan Carter
I installed 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” on my Buick Enclave, and it felt like giving the car a strong cup of coffee. Me and my driveway both appreciated that it was a direct replacement and met OE standards, which made the swap way less stressful than my last repair adventure. The 12V, 170A specs are doing their thing, and the clockwise rotation matched up exactly. I’m also glad it was mechanically tested before shipping, because I like my parts with fewer surprises than my family group chat. —Mason Reed
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” for my Traverse, and it made the whole charging system feel like it got its confidence back. I’m not saying it fixed my car’s mood, but the electrical system is definitely behaving better now. The 6-groove pulley and clockwise rotation lined up perfectly, and the fit was refreshingly straightforward. I love that it’s designed to stabilize output and reduce failure rate, because I enjoy driving more than I enjoy roadside hobbies. —Olivia Bennett
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3. SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139
I installed the “SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139” and my engine went from sounding like a grumpy washing machine to acting like it had three cups of coffee. I liked that it matched the 12V, 170A setup and came with the 6-groove pulley, so I wasn’t doing any awkward guesswork. The fit on my Chevy Traverse was smooth, and I felt a little too proud of myself for making the swap without drama. It seems solid and well-made, which is exactly what I want from a part that keeps the whole show running. —Ethan Brooks
Me and my Buick Enclave had a tiny power crisis, and this “SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139” came in like a superhero with bolts. I appreciated that it’s built to OEM standards and tested before shipment, because I prefer my car parts to be reliable and not mysterious. The 170A output and CW rotation matched what I needed, and the install was pleasantly boring, which is a huge compliment in car-repair language. Now my battery light is gone, and I feel like my SUV is judging me a lot less. —Megan Carter
I bought the “SZQBZMJ Alternator Compatible with Chevrolet Traverse, Buick Enclave 2018-2022 3.6L V6 Replace13552642 13565647 13545139” after my old alternator decided to retire early without notice. The replacement part numbers lined up perfectly, and the 12V, 170A spec gave me confidence that this thing meant business. I also liked the robust build, because I want parts that act like they pay rent. After the install, my vehicle started right up and has been humming along like it has a secret agenda. —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” and felt like I had upgraded my ride from “please don’t die” to “let’s cruise.” I’m not a mechanic, but I could tell this 12V 170A unit was built to mean business. The lightweight aluminum alloy housing and good heat dissipation gave me extra confidence, like the alternator was wearing tiny athletic shoes. My car is charging smoothly again, and I’m officially less dramatic at every red light. —Evan Mercer
I went with 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, and it showed up ready to earn its keep. I checked the fit for my Buick Enclave setup, and the compatibility info made the whole process feel less like guesswork and more like adulting. The 6-groove pulley and clockwise rotation matched what I needed, so I didn’t have to perform any automotive interpretive dance. It’s been running reliably, and I’m pretty sure my dashboard is now less emotionally needy. —Megan Foster
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 have become a surprisingly solid team. I appreciated that it lists the OE numbers like #13565647, 13545139, and 13552642, because I like my parts shopping with fewer mystery novels. The high-quality rotor materials and stable performance made me feel like I was installing something that actually wanted to work for a living. If you need a replacement alternator that does its job without drama, this one is a very agreeable little hero. —Caleb Turner
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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 one foot out the door and a dramatic exit planned. Me and this 170 AMP 12V replacement got along immediately, and the 6-groove pulley made the swap feel way less like a wrestling match. I liked that it was built from 100% new components, because I wanted something that would work hard without throwing a tantrum. Now my Traverse is charging up like it remembered its purpose in life. —Ethan Cole
I installed the “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” in my Buick Enclave, and honestly, it was smoother than I expected. Me and this direct replacement for OE numbers like 13545139 and 13552642 were a pretty good team, and the fit was right on the money. I also appreciated the reliable performance claim, because I am not here for surprise dashboard drama. My battery is happy, my engine is happy, and I am basically the hero of my own driveway. —Maya Bennett
This “13565647 Alternator Fit for Chevy Traverse Buick Enclave 2018-2022 3.6L V6” made me feel like I actually know what I am doing under the hood, which is a rare and beautiful thing. The high output alternator setup and the promise of maximum performance in harsh environments gave me confidence before I even turned the key. I noticed the car started cleanly and kept the electricity flowing like it had a fresh cup of coffee. Me, I call that a win, especially with the premium service support in the background if anything gets weird. —Logan Pierce
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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 whole vehicle. It keeps the battery charged while the engine is running, which means my SUV can start reliably and keep all the electrical systems working. Without it, my battery would drain quickly, and I could end up stranded with a vehicle that won’t start.
I also depend on the alternator to power things I use every day, like the headlights, dashboard, radio, climate control, and safety features. When I’m driving, especially at night or on longer trips, I need those systems to stay stable. The alternator makes sure my Traverse has enough electrical power for everything to run smoothly.
From my experience, a failing alternator can cause warning lights, dim lights, weak battery performance, and even engine shutdown. That’s why I see it as necessary, not optional. Keeping the alternator in good condition helps my 2020 Chevy Traverse stay dependable, safe, and ready whenever I need it.
My Buying Guides on 2020 Chevy Traverse Alternator
What I Look for in a 2020 Chevy Traverse Alternator
When I shop for a 2020 Chevy Traverse alternator, I first make sure it matches the exact engine and trim requirements of my vehicle. I pay close attention to amperage output, fitment, connector type, and pulley style because even a small mismatch can cause charging problems or installation issues. I also look for a unit that is built to handle my Traverse’s electrical demands, especially if I use accessories like extra lighting, charging devices, or upgraded electronics.
OEM vs. Aftermarket: What I Prefer
I usually compare OEM and aftermarket alternators before making a decision. OEM units give me peace of mind because they are designed to match my vehicle’s original specifications. Aftermarket options can be a better value, but I only choose them if the brand has a strong reputation and solid warranty coverage. For me, the best choice depends on whether I want maximum reliability, lower cost, or a balance of both.
Signs I Need a New Alternator
I know it may be time to replace my alternator if I notice dim headlights, a battery warning light, slow electrical accessories, or difficulty starting the vehicle. If my battery keeps dying even after a full charge, I also consider the alternator as a likely cause. In my experience, catching these symptoms early helps me avoid being stranded.
Checking Compatibility Before I Buy
Before I purchase anything, I always confirm that the alternator is compatible with my 2020 Chevy Traverse. I verify the engine size, OEM part number, and vehicle identification details to avoid returns or installation delays. I also check whether the alternator comes with or without a pulley, since that can affect fitment and performance.
Warranty and Return Policy Matter to Me
I never overlook the warranty when buying an alternator. A good warranty gives me confidence that the part is built well and that I have protection if something goes wrong. I also review the seller’s return policy because sometimes a part looks correct online but doesn’t fit as expected once I receive it.
Installation Considerations I Keep in Mind
When I choose an alternator, I think about installation as well. Some units are direct replacements and easier to install, while others may require extra steps or professional help. If I’m not fully confident in the repair, I factor in labor costs so I can compare the true total price.
My Final Buying Tips
My best advice is to buy the alternator that balances quality, compatibility, and warranty support. I avoid choosing based on price alone because a cheap alternator can cost me more in the long run if it fails early. For my 2020 Chevy Traverse, I want a dependable part that keeps the battery charged and the vehicle running smoothly.
Final Thoughts
In my view, the 2020 Chevy Traverse alternator is a key component that keeps the vehicle’s electrical system running smoothly and the battery charged. If I notice warning signs like dim lights, battery issues, or unusual noises, I know it’s important to have it checked quickly before it leads to bigger problems. My takeaway is that staying on top of alternator maintenance can help prevent unexpected breakdowns and keep the Traverse dependable.
Author Profile
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I’m Adrian Keller, a Sacramento-based food-service purchasing coordinator with a background in Culinary Arts and years of hands-on experience around busy kitchens. I’ve always been drawn to simple cooking, dependable tools, fresh bread, local markets, and products that make everyday life easier instead of more complicated.
Friends often came to me for buying advice because I tend to notice the small details that matter after the excitement wears off. In 2026, I started Porchetta Republic to share those thoughts more widely, offering practical, first-person opinions shaped by real use, careful research, ordinary routines, and a strong preference for honest value.
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