Description
Overview:
This toothed belt is a genuine Stihl replacement part designed for Stihl/Viking cordless lawn mowers, including the MA 443.1 and MA 443.1 C. Built from durable, wear-resistant elastomer with precision-moulded teeth, it delivers positive, slip-free power transmission between the drive pulleys, helping the mower maintain consistent blade speed and cut quality. Identified by MPN 6338 764 0901, it replaces tired, cracked, or stretched belts that can cause loss of drive, uneven cutting, or excessive noise. The closed-loop design and correct tooth profile support smooth running and reduced vibration. It is made specifically for the MA 443.1 platform, ensuring a proper fit and reliable performance in everyday mowing, whether for domestic gardens or regular contract work.
Key Features:
- Genuine Stihl part (MPN 6338 764 0901) for assured compatibility and performance
- Precision-toothed profile for positive, slip-free power transfer to the blade drive
- Durable construction for long service life under regular mowing workloads
- Accurate sizing for the MA 443.1 platform to maintain factory drive geometry
- Supports smooth, quiet operation and consistent cut quality
- Helps maintain battery efficiency by reducing transmission losses
- Easy to fit with standard hand tools, minimising downtime
- Suitable replacement for worn, cracked, glazed, or broken belts
- Black, closed-loop toothed belt form factor for straightforward identification
Typical Applications:
Routine replacement during mower servicing, restoring reliable blade drive when symptoms such as belt slip, chirping, or reduced cutting performance appear. Ideal for keeping Stihl/Viking cordless mowers running efficiently in domestic lawn care, property maintenance, and groundskeeping, where dependable power transmission and clean, even cutting are essential.
Also known as:
Cogged belt, synchronous belt, tooth belt, mower blade drive belt, lawn mower power transmission belt, pulley belt, synchronous drive belt, cog belt.
Fits Models:
MA 443.1, MA 443.1 C, MA443.1, MA443.1C, MA4431, MA4431C
Alternate Part Numbers:
6338-764-0901, 63387640901
Product Specifications
| L&S Part No. | 6338 764 0901 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 63387640901 |
| Unit of Sale | 1 |
| Applications | MA 443.1, MA 443.1 C, MA443.1, MA443.1C, MA4431, MA4431C |
| Machine Type | Mowers |
| Fits Brands | Stihl |
| Fits Models | MA 443.1 | MA 443.1 C |
