Our garage door pulleys including 3’’ pulley, 3’’ heavy duty pulley, 4’’ pulley, sheave pulley kits, strap, fastener and garage door pulley assembly. All of them are made by galvanized steel with high strength.
The maximum load for our 3inch pulley is 100lbs, which lifespan is 10,000cycles. Our 3inch heavy duty and 4inch pulley is 200lbs with 35,000 cycle lifetime. Our pulley with extra safety cable will make your extension spring door business as stable as torsion door system.
As the constructions of garage door are most torsion type now, less homeowners would like to use the extension door, but our enough inventory of the garage door pulley with complete kits will still make your business more simple.
Garage Door Pulley


- 3” Pulley
- Heavy duty yellow zinc
- Max. load 200lbs
- Pulley only, for 3/8″ bolt
- Max. cable: 3/16″





Pre-Packaged for Your Extension Door
We have different pre-packaged garage door pulley kits for your extension door including 2 or 4pcs individual pulleys, 4pcs pulleys with forks, S hooks and cables. Stable bagged with standard pulley, cable and other parts size is more easily for your garage door wholesale.


Reliable Raw Material Makes Longer Cycle Lifetime
The high strength heated steel of garage door pulley is our most important raw material. 16GA/1.5mm for normal 3’’ pulley, 14GA/1.8mm for heavy duty 3’’ pulley and 4’’ pulley. 100lb or 200lb loading rate with 6 rivets for our sheave pulley kit will make you get over 10,000 cycle lifespan.
Fast Delivery with Great After-Sale Service
We can ship over 5,000pcs garage door pulleys in one week, for your customized extension conversion or other pulley kits, our flexible production line will support your urgent demands. Meanwhile, we are confident of our quality and will offer 3years warranty if pulley breaks.

Yes, the 4’’ pulley is more durable for the extension door, but if the door is not too heavy, 3’’ garage door pulley is enough.
Sorry, we only have 3 options of the garage door pulley, all of them are made by galvanized steel, no cast iron ones.
Yes, we can do the pre-installation for your pulley.


