Description
Overview:
This genuine Stihl V-belt (MPN 6378 704 2101 / 63787042101) is a power transmission belt for Viking professional walk‐behind lawnmowers, including the MB 756.0 YC and MB 765.0 YS. Built from durable, heat- and oil-resistant rubber with internal cord reinforcement, the black V‐section profile delivers dependable grip in the pulley grooves for efficient drive. It keeps your mower running smoothly by transferring power within the drive system, helping to maintain consistent cutting and propulsion performance. Designed to meet the original specification, it offers an accurate fit and stable tension, reducing slip and wear under regular use. Suitable for both residential and commercial mowing, it is an ideal replacement when the existing belt shows signs of cracking, glazing, stretching, or loss of drive. As a genuine part, it supports the longevity of your machine.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- V‐section profile for strong grip and efficient power transmission
- Durable rubber compound with cord reinforcement for long service life
- Stable length and profile to minimise slippage and re-tensioning
- Smooth, quiet running to protect pulleys and bearings from undue wear
- Direct replacement for worn, cracked, stretched, or slipping belts
- Accurate fit to suit specified Viking models, reducing installation time
- Suitable for regular residential and demanding commercial mowing cycles
- Helps restore cutting efficiency and drive consistency across varied grass conditions
- Resistant to typical mower contaminants such as heat, dust, and light oil exposure
Typical Applications:
Routine servicing and corrective maintenance of Viking/Stihl professional lawnmowers where reliable belt drive is required. Use when experiencing belt slip, reduced propulsion, inconsistent blade speed, visible cracking, glazing, fraying, or noise from the belt path. Suitable for grounds maintenance, landscaping, estate upkeep, and domestic lawn care.
Also known as:
Vee belt, wedge belt, mower drive belt, deck drive belt, cutter belt, propulsion belt, transmission belt, pulley belt, power transmission belt, lawnmower V‐drive belt.
Fits Models:
MB 756.0 YC
MB 756.0 YS
MB 765.0 YS
RM 756.0 YC
Alternate Part Numbers:
6378-704-2101, 63787042101
Product Specifications
| L&S Part No. | 6378 704 2101 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 63787042101 |
| Unit of Sale | 1 |
| Applications | MB 756.0 YC, MB 756.0 YS, MB 765.0 YS, MB756.0YC, MB756.0YS, MB765.0YS, RM 756.0 YC, RM756.0YC |
| Machine Type | Mowers |
| Fits Brands | Viking |
| Fits Models | MB 756.0 YC | MB 756.0 YS |
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