GM Parts Giant, by Genuine Parts Unlimited, Inc., is one of the largest distributors for OEM GM parts. Our online GM parts website offers customers the best discounted prices on OEM Chevrolet parts, GMC parts, Cadillac parts, and Buick parts. OEM stands for Original Equipment Manufacturer. In other words, it simply means our parts come direct from GM and GM AC Delco. Essentially, we do not sell aftermarket parts. We ship all of our parts from region based GM dealers within three business days to provide for fast service.
Written by the business, not verified by us.GMPartsGiant.com (gmpartsgiant.com) has a 4.4 out of 5 rating on OK.one, based on 102 user reviews collected here. It is listed under Vehicles & Transportation and its reputation is good. 85% of reviews are 4 stars or higher and 14% are 1 star; The business has replied to 73% of negative reviews; Reviews mostly discuss Product, Price, Quality. Last updated 2026-08-11.
Reviewers overwhelmingly had a great experience with this company, consistently praising the overall high value offered. Customers truly appreciate the affordable pricing, great product quality, and efficient delivery services provided during their everyday online purchases. Many consumers note that finding the correct automotive components using the digital catalog is exceptionally quick, reliable, and completely straightforward. However, some people mentioned that they encountered frustrating experiences regarding high shipping expenses or unexpected price increases after placing an order. A few reviewers additionally shared that they received damaged items, or faced significant operational difficulties regarding product returns and expensive restocking fees.
Auto-generated from all reviews of this business. For reference only.Easy deal. Super price.
Hello William, We appreciate you choosing us for your OEM parts needs. Providing competitive pricing on OEM parts is something we work hard to maintain. We appreciate your support and future business! Thanks again William!
I what I found i was quite easy dealing with the company and ordering items. no complaints here.
Hello Dennis, Thank you for your feedback! Our team works hard to maintain an intuitive order experience with many easy-to-navigate features such as interactive parts diagram, and Parts Question. We are happy you found our pricing competitive; we’ll be here whenever you need OEM GM parts you can rely on!
Headlight assembly arrived quickly and worked properly.
Hello James, We appreciate you taking the time to share your experience. Glad to hear shipping and packaging met expectations. Looking forward to helping you with future OEM parts needs! Thanks again James!
Hello Frank, We appreciate you taking the time to share your experience. We’re proud to provide genuine OEM parts customers can rely on. Thanks again for being part of our community!
Was sent wrong part. Not sure whose fault as it came in black not tan. Didn’t know rules of returned, but returned part pristine with out CO’s labe though all documented. Never received refund. Not nice.
Thank you for your feedback. We're sorry to hear the part did not meet your expectations. In this case, the product listing did not specify a color, and the reference image displayed on our website shows the part in black. We always strive to present our listings as accurately as possible and encourage customers to reach out with any questions before purchasing. Your feedback is essential for improving our services.
Hello William, We appreciate you taking the time to share your experience. We’re happy to know you had a positive experience. Thanks again for choosing us William!
It was easy to use abnegation received my parts
Hello Rick, Thank you for your feedback! Our team works hard to maintain an intuitive order experience with many easy-to-navigate features such as interactive parts diagram, and Parts Question. We are happy you found our pricing competitive; we’ll be here whenever you need OEM GM parts you can rely on. Thanks again!
Easy to find what I needed, fast shipping and good quality parts.
Hello, We appreciate you taking the time to share your experience. We work hard to ensure orders arrive accurately and efficiently. Thanks again for being part of our community!
Hello Chris, We appreciate you taking the time to share your experience. We’re glad the OEM parts worked exactly as expected. We’ll continue working hard to provide OEM parts you can count on. It means a lot to have your support. Thanks again Chris!
The delivery is what we ordered and fit. That doesn't happen often.
Hello Ron, We’re happy to know you had a positive experience. We work hard to ensure orders arrive accurately and efficiently. Wishing you many smooth miles ahead, thanks again Ron!
Fast service, good price and great OEM part. Thanks!
Hello David, We appreciate you taking the time to share your experience. Reliable delivery is something we take seriously. Looking forward to helping you with future OEM parts needs. Thanks again David!
Price was good, delivery went well, parts fit like a glove. Thanks
Hello, We appreciate you taking the time to share your experience. Providing competitive pricing on OEM parts is something we work hard to maintain. Hope to serve you again soon! Thanks again for the good review!
Site easy to navigate, correct product application, Price, ideal.
Hello Bob, Thank you for your feedback! Our team works hard to maintain an intuitive order experience with many easy-to-navigate features such as interactive parts diagram, and Parts Question. We are happy you found our pricing competitive; we’ll be here whenever you need OEM Ford parts you can rely on. Thanks again!
I got the right part the first time in new condition. Very satisfied with the service and product.
Hello Chuck, We appreciate you taking the time to share your experience. We’re glad the OEM parts worked exactly as expected. We’ll continue working hard to provide OEM parts you can count on. It means a lot to have your support. Thanks again Chuck!
The prices were the cheapest I could find online. The ordering process was easy. The items shipped quickly.
Hello Carmine, We appreciate you taking the time to share your experience. Providing competitive pricing on OEM parts is something we work hard to maintain. Hope to serve you again soon! Thanks again for the good review!
Hello Brent, We appreciate you taking the time to share your experience. Reliability and proper fit are exactly what we aim to deliver. We appreciate your support and future business! Thanks again Brent!
Parts came in perfect shape and were delivered when they said they would!
Hello Peter, We appreciate you taking the time to share your experience. We’re glad the OEM parts worked exactly as expected. We’ll continue working hard to provide OEM parts you can count on. It means a lot to have your support. Thanks again Peter!
Won’t be ordering from here again. Terrible to get ahold of. Terrible customer service. Simply needed an invoice they can’t look up with credit card, email, shipped to adress, part anything. Terrible
We apologize for the inconvenience. We're sorry to hear about your experience and truly appreciate you bringing this to our attention. This is not the level of service we aim to provide, and we’d like the opportunity to make things right. A member of our team will be reaching out to you directly to discuss the situation further. We value your input and hope to resolve this promptly. Your feedback is essential for improving our services.
The part does what it's intended to do. Thanks
Hello John, We appreciate you taking the time to share your experience. We’re proud to provide genuine OEM parts customers can rely on. We appreciate you choosing us thanks again!
Hello Alonzo, We appreciate you taking the time to share your experience. Reliable delivery is something we take seriously. Looking forward to helping you with future OEM parts needs. Thanks again Alonzo!
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