Springs
Chamberlain Garage Door Opener Gears
If your Chamberlain opener is noisy or not lifting properly, worn gears are a common cause. Replacing the gears is an affordable way to restore smooth operation and extend the life of your opener.
Popular replacement kits:
- Drive Gear & Worm Gear Kit (41A2817) – fits many Chamberlain, LiftMaster, and Sears Craftsman chain-drive models.
- Gear & Sprocket Assembly (41C4220A) – complete gear and sprocket assembly used across a wide range of compatible units.
Tip: Always verify compatibility by checking the opener’s model number on the motor head before ordering.
FAQs – Chamberlain Gears
How do I know my gears are stripped?
The motor runs but the chain/belt doesn’t move, and you may find white plastic shavings inside the opener housing.
Can I replace the gears myself?
Yes—basic tools and careful steps are required. Unplug power, open the housing, remove the old gears, install the new kit, then test and lubricate.
Do these gear kits work with LiftMaster or Craftsman?
Many Chamberlain, LiftMaster, and Sears Craftsman models share the same internal parts. Check your specific model to confirm compatibility.
How to Upgrade Your TorqueMaster Original Springs (They're Discontinued - Upgrade to New Plus Version)
TorqueMaster Original (TM/TM1) springs have been discontinued. Discover why upgrading to the newer TorqueMaster Plus version is your best move - plus how to measure your door and exactly and what info to send us for the perfect replacement springs.
Read more
about How to Upgrade Your TorqueMaster Original Springs (They're Discontinued - Upgrade to New Plus Version)
How to Install a Garage Door Quieting Kit: Complete Guide
We've found that replacing the majority of the hinges and installing the rest of the kit does a pretty good job of silencing the door without needing to deal with that bottom roller. If you really feel it needs to be changed, we have a separate process for that, but it's not necessary for most installations.
How to Order the Correct Torquemaster Spring | Height & Weight Method
Stop guessing your TorqueMaster spring. If the sticker is gone or unreadable, measuring your door height and weight is the only reliable way to get the right replacement the first time.
Read more
about How to Order the Correct Torquemaster Spring | Height & Weight Method