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Garage Door Opener Drive Belt 20B21-1

Part #20B21-1
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Part Information

This manufacturer-approved drive belt (part number 20B21-1) is for garage door openers.

Drive belt 20B21-1 is rotated by the motor pulley to move the trolley along the rail.

Unplug the garage door opener before installing the drive belt. Wear work gloves to protect your hands.

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