Springs
Garage Door Opener Trolleys & Carriages
Garage door opener trolleys and carriages are the moving parts that connect the opener arm to the chain or belt drive system. When these parts wear out, your opener motor may run but the door won’t move properly. Replacing the trolley or carriage restores smooth, reliable operation without needing to replace the entire opener.
Common signs a trolley/carriage needs replacement:
- The motor runs but the door doesn’t move.
- You hear grinding or slipping noises.
- The opener arm is disconnected or moves unevenly.
- Visible cracks, wear, or broken teeth on the carriage.
Tip: Always match the replacement part to your opener’s brand and model number for proper fit and function.
FAQs – Garage Door Opener Trolleys & Carriages
How do I know which trolley or carriage fits my opener?
Check your opener’s brand and model number, usually printed on the motor head. Match this to the part details on the product page.
Can I replace just the trolley, or do I need a full kit?
If the chain/belt and rail are in good condition, replacing only the trolley is enough. Some models require a carriage and rail assembly kit.
Why does my opener arm keep disconnecting from the trolley?
Worn teeth or cracks in the carriage can prevent the arm from locking in place. Replacing the trolley fixes this issue.
Is replacing a trolley difficult?
It’s a straightforward DIY repair with basic tools. Disconnect power, release chain/belt tension, swap the part, then retension and test.
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