Mitsuboshi A61K 4LK630 V-Belt

The A61K / 4LK630 is a high performance Kevlar V belt designed for demanding applications requiring strength, heat resistance, and long service life. Built with aramid fiber cords and a wrapped cover, this belt maintains flexibility under load and resists wear from environmental exposure. It is commonly used in equipment such as lawn tractors, tillers, compressors, and other machinery that runs on a classical A section belt.

This belt is a direct replacement for OEM belts requiring a 1/2 inch top width and 63 inch outside length. The Kevlar reinforcement ensures minimal stretch and consistent power transmission over time, making it suitable for both residential and commercial machines.

Cross Reference

MF / Dynamark / Noma    39455, 45186
Ariens    72128, 07212800
Industry Standard    4L630
Bolens    171-9731, 174-7359
Case / Ingersoll    C-15370
Cub Cadet    754-0347, 9540347
Gilson    5283
Homelite / Jacobsen    328973, 343833, 344489
John Deere    M86422, M91147
MTD    754-0164, 754-0347
954-0164, 954-0347
Murray    21058, 37X8
Simplicity / Allis Chalmers    101007, 108151, 156120, 2025879, 2026574, 2156120, 2156120SM
Toro    22-5360, 30-9600
White Outdoor    32-0009962