The A78K / 4LK800 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 80 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
AYP / Roper / Sears   120418X, 583662201 Industry (Generic)   4L800 Case / Ingersoll   C-14965, C-22708, C-27708 Cub Cadet   754-3037, 954-3037 Gilson   200624 Homelite / Jacobsen   328891 John Deere   M44272, M47766, M73223 Lawnboy   705766 Simplicity / Allis Chalmers   1666801, 1672135, 7166801, 1666801SM, 1672135SM Toro   10-5476 John Deere M138974
Manufacturer names, part numbers, descriptions, images, and symbols are provided solely for identification and cross reference purposes. PowerDriveBelts.com is independent and is not affiliated with, authorized by, or sponsored by any manufacturer mentioned. All trademarks and brand names belong to their respective owners.
We strive for accuracy, but it is the customer’s responsibility to verify belt compatibility, specifications, and fitment before purchase. Use of an original equipment manufacturer (OEM) name is for reference only and does not imply endorsement or that the product is a direct OEM replacement unless clearly stated.
Affiliate Disclosure: As an Amazon Associate, we earn commissions from qualifying purchases. Some product links on this site may direct you to Amazon or other affiliate partner sites.
Need help finding a belt number? Click the Chat button on the bottom right. Call us at 605-370-9153 Available from 9AM to 4PM CST
Choosing a selection results in a full page refresh.
