Chain Drive Gear & Sprocket Kit | 041C4220A

Part fit great! And got my garage door up and running again!

Tayler B. 5/5 Verified August 24, 2026

Fit perfectly and works as advertised!

Gary G. 5/5 Verified December 8, 2025

Parts as ordered, well packaged and promptly received. Thanks

Terry H. 5/5 Verified March 26, 2024

The gear arrived promptly and the opener is working fine.

John U. 5/5 Verified November 23, 2023

Thanks for the quick service and great fitting replscement parts for my Chamberlain overhead door operator. Took less thsn an hour to repair and saved a few hundred bucks not having to replace the operator.

Craig P. 5/5 Verified April 23, 2016

you was a good help in fining the gear for us thank you june

James M. 4/5 Verified February 22, 2016

Wow an easy site to use and find the parts I needed to repair my neighbors opener. He was looking at spending over $200. for a new opener and for under 10 he was back in operation thanks to DoorParts .com. thanks again for him . Me I order it and installed , but he is happy.

John M. 5/5 Verified January 26, 2016

The gear arrived promptly as promised. I ordered the punch tool as recommended to remove the pin and change out the old, warn-out gear. The entire process couldn't have been smoother. Thanks doorparts.com. this was way cheaper than an entirely new garage door opener. I will definitely use your co. again if need me as well as recommend it to anyone.

Everett B. 5/5 Verified July 6, 2015

I recently ordered a Liftmaster Gear and Socket kit from Door-Parts.com to replace worn out parts from my 20 year old garage door opener. I had looked online but wasn't sure as to which assembly fit my garage door opener. So, I called the service department at Door-Parts.com, and they quickly gave me the correct assembly number. I then went back online and placed my order. I received my parts within four days, and they were an exact match to the original parts. Thank you for the quality service and quick turn-around!

Joseph K. 5/5 Verified April 8, 2015

The parts were affordable: came quickly: included everything necessary: instructions were vague only because they didn't specify use of included grease i.e.., how much and where. I'm real pleased and would order from this company again!

Mark M. 5/5 Verified May 20, 2014

Hassle-free transaction. Parts fit perfectly. I got my garage opener working like new again for less than $50. Will definitely buy from again in the future. Highly recommended.

Very S. 5/5 Verified October 9, 2013

This kit help me to fix my LiftMaster garage door opener. I ordered the kit on Monday night and it arrived on Thursday. I watched several instructional videos on YouTube and chose the gear replacement strategy without removing the motor from its place. It worked nicely for me. The most time-consuming part was to unscrew one of the three screws holding the gear and sprocket assembly because I did not have the wrench of the right size and had to use an adjustable wrench.

Alex 5/5 Verified June 15, 2013

Just received gear and sprocket kit for chamberlain garage door opener within two days of placing order. Watched a short video on Youtube and within 1 hour, I had opener down, replaced gear and sprocket and had it back up and working. Works like new!!!! Sure beats $200.00 for a new opener!!!! Plan on fixing one for a friend next.

Richard A. 5/5 Verified February 26, 2013