Garage Door Operator V-Belt – 3/8" x 21"
Garage Door Operator V-Belt – 3/8" x 21"
Service a compatible garage door operator’s pulley drive with this 3/8" x 21" V-belt. Its 3L profile is intended for equipment requiring this belt cross-section and nominal length.
Specifications:
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Belt type: V-belt
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Profile: 3L
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Nominal width: 3/8"
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Nominal length: 21"
Verify the replacement through the operator’s parts list or the designation printed on the original belt. A belt with a similar length but a different profile may not seat correctly in the pulley grooves.
Inspect the complete drive before fitting the replacement. Cracking, glazing, damaged edges, or uneven wear can indicate incorrect tension, worn pulleys, or alignment problems that should also be addressed.
Disconnect and lock out operator power before service. Install and tension the belt according to the equipment manufacturer’s instructions. Avoid forcing the belt over pulley edges or applying excessive tension.
Reinstall every protective guard before performing an operational test.
Choose this belt when your operator specifies a 3L-profile V-belt measuring 3/8" x 21".
3/8" x 21" V-Belt for Compatible Garage Door Operators
Replace a worn operator belt with this 3L-profile, 3/8" x 21" V-belt. Confirm the equipment specification before ordering.
Details
Need Help With Compatibility?
Not sure if this is the correct part for your garage door, operator, gate system, or application? Contact Us before ordering — we’re happy to help.
Garage-DoorParts.com carries a large selection of residential and commercial parts, and many components can look similar while having important differences in dimensions, model numbers, voltage, mounting, or compatibility.
For the best assistance, please provide as much information as possible, including the manufacturer, model number, part number, door or operator type, dimensions, and clear photos of the existing part or equipment.
Our goal is to help you identify the correct product before you order and reduce the possibility of ordering an incompatible part.
Contact Us with your product questions and compatibility information, and we’ll do our best to point you in the right direction.
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