Engine Parts for Cars and Trucks. Free Next Day Delivery and Easy Experience!
Is Partsology legit?
Partsology (partsology.com) has a 4.2 out of 5 rating on OK.one, based on 201 user reviews collected here. It is listed under Vehicles & Transportation and its reputation is good. 80% of reviews are 4 stars or higher and 14% are 1 star; The business has replied to 100% of negative reviews; Reviews mostly discuss Product, Quality, Price. Last updated 2026-08-12.
What reviewers say
AI generated
Reviewers had a great experience with this company. Customers frequently mention the extremely fast delivery times, noting that packages often arrive right on time or even the very next day. People really love the user-friendly website layout, highly affordable prices, and the remarkable ease of locating the correct components for their vehicles.
Some reviewers were not happy with receiving incorrect items, missing parts, or experiencing occasional fulfillment issues with their orders. Others also noted that certain mechanical components lacked proper manufacturing standards, resulting in replacement parts that failed to fit correctly or broke prematurely.
Auto-generated from all reviews of this business. For reference only.
EVERYTHING WAS OK ---BUT THE HEAD GASKET DID NOT FIT----HAD TO BUT ANOTHER GASKET
Reply from Partsology2026-04-30
Hi, Larry.
Thank you so much for your feedback.
We are glad to hear that everything else worked well, but we are sincerely sorry to know the head gasket did not fit as expected.
Of course, this is not the experience we want for our customers.
We would have appreciated the opportunity to assist you before purchasing another part, as we are always here to help verify compatibility and find a proper solution.
If you are interested, please feel free to contact us. We will be happy to assist you.
Hi, Randy.
Thanks so much for your feedback.
It means a lot to know how great was our services and met your expectations.
We hope we can continue doing business with you.
Really good website to order parts and excellent customer service, would definitely recommend.
Reply from Partsology2026-04-28
Hi, Luis.
Thank you so much for your feedback. We are sincerely glad to hear how you like our website and our customer service, we will be more than happy to assist you.
We hope we can continue doing great business with you, thank you for your preference.
The parts are high quality and fit perfect and the parts came fast I would definitely recommend you to my friends no other company has been as quick as you to get the parts to me I thank you for your service ur prices are way better then most
Reply from Partsology2026-04-28
Hi, Greg.
Thank you so much for your feedback! We are glad about it, and it makes us happy to hear that we count on your preference.
Our priority for our customers is to be the store where you can find good prices, with good customer service, more than happy to assist you, and fast shipping, as with this order that you placed.
We hope we can hear from you soon and do good business with you.
They're great I found them online I ordered it the next day it came super fast service very nice used them again
Reply from Partsology2026-04-28
Hi, Lee.
It is a pleasure for us to keep reaching the expectations of what we offer.
We are always happy to hear that our customers are getting their parts on time with the Next Day Delivery, so our customers can count on us as we count on their preference. 😎️
Nothing to say but they're Great. I recommend them everyday
Reply from Partsology2026-04-28
Hi, Ronald.
You know how to make us happy but we would like to let you know how value is for us to have good customers that has been keeping that preference for years as you! 🌟️
We are sincerely glad with your feedback, we appreciate it and it helps us to keep that excellent customer service every day, ready for all our customers.
The parts I ordered and the diagrams shown are too different parts. The image matched the piston rings that I had before making my order and I even used the on website “verify it matches your car” feature and it said they’d fit. Upon arrival and inspection, the parts are not what I was advertised or what I was intending to buy.
Reply from Partsology2026-04-28
Hi, Garret.
We are sincerely sorry to hear about the situation you were put in by the piston ring set ordered.
Of course, we never meant to affect you, so there is a warranty awaiting you, and we would like to help you.
After checking the details on the order and compatibility, our records confirm that the correct set was ordered, but we would like to check if you received the correct set (whenever the part number or the parts inside the box), as all our parts are designed to support optimal engine performance, and it is manufactured to meet OEM standards.
We noticed that you contacted us on Friday, regarding that you would like to get the correct set, and as our agent had the same conclusion, some pictures were requested so that we can compare in our warehouse and confirm if that is the case.
Whenever in that scenario or if the set you got is the correct one, we will cover you with our warranty, and we will be more than glad to help you.
Our customers are important to us to provide the proper follow-up, so we tried to call you, but unfortunately, we did not receive a response.
We emailed you to continue the case and give you the best resolution, with the option of your preference to change that experience you had. 🤗️
I typed in "made in America," but this is made in China. I paid more for made in USA. Never again.
Reply from Partsology2026-04-24
Hi, Carl,
Thank you for your feedback.
We attempted to contact you to follow up on your concerns, and although we were able to briefly connect, we were unable to discuss the situation further. We would have appreciated the opportunity to assist you directly before the feedback was posted.
We understand there may have been some confusion during your search. While you may have been looking for parts “made in the USA,” our store appears in search results as a recommended seller in the USA. However, this does not indicate that all products are manufactured in the USA. Our listings do not specify U.S. manufacturing, as our parts are made in China, Taiwan, and Japan. All product details are accurately described in the listing.
Additionally, there was no additional charge for the origin of the parts, it was related to shipping costs based on the delivery location.
If you have any concerns regarding your order, we are more than willing to assist you and work toward a resolution.
Please feel free to contact us at your convenience.
Purchased the cylinder head gasket kit with head bolts, head bolts were incorrect they are not long enough they're too big in diameter the thread pitch is incorrect and their cap screws not hex heads..
I purchased through you for next day shipping. Unfortunately that's gonna be a lot longer than that...
Please send me the Correct bolts and a return tag..
Please verify they are correct..
Your ad is a good reference of what they look like..
Reply from Partsology2026-04-23
Hi, Jason.
We are sorry to hear about the inconvenience you encountered with your order, of course we never meant to cause you a delay.
We checked your case, and we can see that our team assisted you directly and accordingly started a return for a replacement, and a prepaid return label was provided so you can receive the components as soon as possible.
We understand how important it is to receive the right parts on time, especially with expedited shipping, and we are actively working to resolve this as quickly as possible.
We always encourage our customers to contact us first so we can promptly assist and resolve any concerns.
If you need any further assistance during the process, please don’t hesitate to contact us.
I was sent the wrong parts will not fit the year I have
Reply from Partsology2026-04-23
Hi, Douglas,
We understand your concern and appreciate your feedback.
However, as discussed over the phone, the parts sent were correct and matched as the order was placed. As explained, the kit was ordered for a different vehicle specification. The engine re-ring kit purchased is designed for 1991–1992 models, and all components were selected in standard size, while you mentioned needing parts for a 1993 engine with oversized parts.
We understand that they may appear similar across models or years, but our parts are specific to year, make, model, and engine size. This information is clearly in the product title, description, and compatibility table, and size selection is chosen at the time of purchase.
It is important for us that our customers are guided during each purchase, so for each listing, we leave all those details to be checked before purchasing.
As part of our support, we offered a return for a refund so you could place a new order to get the correct parts.
Please feel free to contact us if you would like assistance to continue with the return.
I ordered a set of pistons for my customer's vehicle, they came in on time, but the piston ring gap on one the pistons was out of tolerance from the factory. I was not able to find this out until after the 30 day return policy due to scheduling issues. I contacted the customer service department and they told me there was nothing they can do about the defective parts because it was after 30 days, so I now have to eat the cost of the defective parts. As a business owner, I will not be using this company ever again and will pass it along to everyone in my network. Lesson learned, but horrible return policy especially if you have to have flexibility in your schedule.
Reply from Partsology2026-04-22
Hi, Christopher.
We understand that it was not the resolution that you were looking for, as you needed an exception because you noticed that the warranty had already expired.
After reviewing your case and the details previously discussed, we do not have any inconvenience with the warranty to be covered; however, for the original scenario explained over the phone, which was that you recently checked the parts, a ring did not fit, tried to install and the ring got broken, as you already acknowledged, there are 30 days to inspect, test, and report any issues, but as you noticed, as the order was placed on March 4, the warranty expired.
We understand that scheduling delays can happen, especially in a business. For this reason, we offer fast shipping options so parts can be received promptly, allowing time within the warranty period to inspect and verify them before installation.
Based on this, the resolution provided by our team accorded with our warranty policy. While we truly wish we could offer a different outcome, we are unable to make exceptions beyond the coverage terms.
We appreciate your feedback and your understanding.
It got to me extremely fast which helped me start my project sooner than expected.
Reply from Partsology2026-04-22
Hi, Josh.
Thank you for your feedback 😃️.
Providing timely shipping service so our customers can move forward without delays is always our priority, and we are very happy to hear that this helped you to start your project sooner than expected.
We look forward to hearing from you again to continue doing great business.
Hi, Roy.
We appreciate your review, and of course, it makes us happy to hear that our fast delivery is being as offered.
We look forward to hearing from you soon.
Very user friendly platform, very fast delivery and great communication! Recommend to all!
Reply from Partsology2026-04-22
Hi, Logan.
Sincerely glad with your feedback and review. We work hard to keep that great job covering all the important things for our customers: Quality, shipping, communication, customer service and keeping our website updated for our customers to easily find the compatible parts.
We are so happy that all these points were completed as offered and as you expected. 😌️
Thank you so much for your recommendation and preference.
Hi, Amor Luzano Jr.
Thank you very much for your great feedback.
We are glad to know that our parts keep that great quality that you were looking for.
We hope we can continue doing great business with you soon.
Hi, Mike.
We appreciate your feedback and we are very happy to know that you are satisfied with our shipping service.
We hope we can continue doing business with you.
I’ve used Partsology before and was pretty satisfied with the price of the parts. I received the parts quickly and everything had been matched up. I did receive an oil pump, however, missing the gasket out of the box. The issue was resolved pretty quickly and received the new oil pump with gasket by the next afternoon. The problem was that the gasket was poor quality, poorly placed in the box and had a tear. I gave three stars not necessarily for Partsology, but for a product being carried that doesn’t represent quality type standards. I’m sure I’ll order parts in the future, but will be somewhat apprehensive of gasket and seal qualities.
Reply from Partsology2026-04-21
Hi, Jason.
We totally understand your feedback and we are glad with your honesty.
We did everything that was in our hands, but we are sorry to know that the quality of this gasket was not as you expected.
We understand that the feedback was not about us specifically, we are glad that you will keep that preference with us.
However, your feedback is important for us, so we have already escalated to the correct department so we can improve this for our customers.
We appreciate your feedback and we hope we can hear from you soon.
Everything was easy to find, when I had a question customer service was quick and easy to deal with.
Reply from Partsology2026-04-16
Hi, Andrew.
Thank you so much for your comment, sharing your experience with us, such as on our website and with our customer service.
Both are important for us to keep that preference from our customers, and as well we hope this will not be the exception with you.
You can count on us, and with our customer service, we are here to help you. 😌️
The worst parts company I have ever dealt with. I ordered a complete engine rebuild kit and they sent me piston with wrong size rings and would not exchange them.
Reply from Partsology2026-04-15
Hi, Joshua.
We are sincerely sorry to hear about the inconvenience you had with the piston rings reported as sent for the wrong size.
After checking your case, as our agent explained, all the parts that you received are correct as ordered, but for this engine, there are two versions for piston rings, which are the Oil Ring and the exact ring you had inconveniences with.
We do carry both versions, but it is recommended to check with their corresponding specialist first to confirm the version that they may need to request at the moment of purchasing them.
When there is more than one version, it is shown and specified on our website. In this case, when the compatibility is verified, when you look for the piston rings, you will see both options, but when you look for the entire engine rebuild kit, only one option is shown (with the bigger version for the Oil Ring).
This was not a system error, as at the moment, from our manufacturer, there is no part number as a kit that includes the second option to be listed.
However, we recognize that on the listing (for the engine rebuild kit) this was not specified, and we are sincerely sorry for this, of course we never meant to affect you, but for those cases and the rest of the scenarios related to warranty, that´s why we offer 30 days since the date of the purchase to report these cases and of course, we cover it with the better option that our customer preffers.
However, when you reported this inconvenience today, it had already been more than two months since the order was placed on 1/18/2026. Unfortunately, the order is out of warranty, as our agent explained.
We know that was not the resolution you needed; however, the policies specified can be found in our FAQ section.
Ordered parts at 5pm showed up next day by 12pm, excellent condition will be using again!
Reply from Partsology2026-04-16
Hi, Sheldon.
We are so glad and happy for your feedback.
It is very important for us to complete what we offer, the next day delivery if the order is placed before 3 PM at your local time (between business days).
We are happy to hear that we will count on your preference with us soon.