The 11A0770 is a classical V-belt used in both automotive and light industrial applications. It's part of the 11A-series, known for durability and reliable power transmission across fans, alternators, pumps, and light machinery.

Top Width: 11 mm (approx. 0.44 inches)

Effective Length: 770 mm (approx. 30.31 inches)

Profile: Classical A-section (11A)

Angle: 36°

Construction: Wrapped belt with polyester or aramid cord (varies by brand)

This belt is commonly found in older European and Japanese vehicles, as well as compact industrial and agricultural equipment.

Cross Reference Numbers

You don’t have to stick with just one brand — here are compatible replacements from trusted manufacturers:

These belts are interchangeable in most applications where 11A0770 is specified. Always verify by size and application type.

Typical Applications

The 11A0770 is used in:

Older automotive systems (fan, alternator, and water pump drives)

Compact compressors and conveyor systems

Agricultural machinery such as small tillers and mowers

Its shorter length and narrow width make it suitable for tight pulley configurations where larger belts won’t fit.

Buying & Replacement Tips

Choose Kevlar or aramid corded versions for high-tension systems

Double-check belt width (11 mm) and length (770 mm) before ordering

If possible, replace with a wrapped belt for smoother pulley engagement

Final Thoughts

The 11A0770 V-belt has several trusted cross reference options and is still widely available through aftermarket suppliers. Whether you’re maintaining older equipment or replacing a belt that finally wore out, you’ll have no trouble finding a match.