GMPartsGiant.com Reviews 

962
TrustScore 4 out of 5

4.2

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Evaluating 460 reviews, reviewers had a great experience with this company. Customers consistently praise the competitive pricing and the high quality of the products, often noting that they receive genuine OEM parts that fit perfectly and perform as expected. Many appreciate the ease of finding the correct parts, often through VIN entry, and the prompt, fast delivery service. The packaging is frequently highlighted as excellent, ensuring items arrive intact and in good condition. However, some customers also noted issues with shipping costs being disproportionately high compared to delivery time or the item's value. A few other people also felt that they received incorrect or damaged parts, despite entering the correct vehicle information, and experienced difficulties with customer support regarding returns or missing items.

What people talk about most

Product

Reviewers highlight positive aspects of product, with many customers expressing satisfaction with the correct... See more

Delivery service

Customers consistently express satisfaction with the delivery service, often highlighting fast and prompt... See more

Price

Clients share positive opinions on price, with many reviewers finding the prices to be reasonable, great, and... See more

Quality

Reviewers mention positive feedback about quality, with many customers receiving correct parts that were... See more

Order

People report ambiguous experiences with order, with some customers finding the ordering process easy and... See more

Reviews shaping this summary

Rated 4 out of 5 stars

The only negative about the process was the shipping cost vs delivery time. The cost was steep for the amount of time it took to arrive.

Rated 5 out of 5 stars

Great pricing with good availability of parts. Genuine GM part was set & functioning in a low mileage 2004 Chevrolet Avalanche. This was a complete blower motor kit, with all after market motors a com... See more

Rated 5 out of 5 stars

Great company! I have bought several parts from them. Ordered new gm injectors for my pickup and motor runs smooth compared to rough with aftermarket injectors and got a great price for them. They alw... See more

Company replied

Rated 5 out of 5 stars

I love GMPartsGiant.com because all I need to do is enter the VIN number for my wife's Cadillac Xt5 and it automatically pulls up the correct parts plus they're OEM Original, not some cheap knockoff p... See more


Company details

  1. Auto Parts Store

Written by the company

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 company


Contact info

4.2

Great

TrustScore 4 out of 5

962 reviews

5-star
4-star
3-star
2-star
1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 82% of negative reviews

Typically replies within 1 week

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.2

All reviews

(962)

392 reviews in the last 12 months

Write a review
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 3 out of 5 stars

Part did not fit

Part did not fit
Need better diagrams

28 February 2026
GMPartsGiant.com logo

Reply from GMPartsGiant.com

Thank you for your feedback. We’re sorry to hear about the frustration regarding the diagram for your part. While we don’t always have detailed diagrams available for every component, your local authorized dealer can be a great resource for ensuring you get the correct information and support. Your feedback is essential for improving our services.

Rated 5 out of 5 stars

Great parts

Great parts. Correct parts. Arrived as scheduled.Cheaper than aftermarket. Great knowing that OEM parts are on my GMC that going to fit correctly and perform to factory specifications.

21 January 2026

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look