041A7280 DEAD-SHAFT SPROCKET kit for (3950)

The small gea fit right on the unit and came with everything necessary to work.

I purchased two liftmaster 3900’s for openers and need to add dead shaft sprockets and chain. This worked great, even though the description says 3950 only. Great parts and service, had a little delay on backorder. Gatehouse stepped up and shipped Fedex.

Exactly what I needed.