This genuine Stihl V-belt (MPN 6340 704 2110) is the primary drive belt for selected Stihl walk-behind lawn mowers, including MB545 and RM545 variants. Made from a heat- and oil-resistant rubber compound reinforced with high-tensile fibre cords, it transfers engine power efficiently across the mower’s pulley system. A correctly matched belt helps maintain steady blade speed and dependable self-propelled drive where fitted, supporting clean, even cutting and consistent forward motion. As an OEM part, it matches the original specification for profile and length, ensuring a precise fit on the specified models and helping to prevent slip, glazing, and premature wear. It is a practical replacement during routine servicing or when signs such as squeal, cracking, or loss of drive indicate the existing belt is worn.

Key Features:
– Genuine Stihl OEM belt for assured compatibility and performance (MPN 6340 704 2110)
– Engineered for MB 545 and RM 545 series drive systems; exact fit and correct profile
– Durable rubber with fibre reinforcement resists stretch, heat, oil, and abrasion
– Stable power transmission reduces slip; maintains consistent blade and drive speed
– Smooth running with low vibration and noise for controlled operation
– Predictable installation when routed per the mower’s service instructions
– Reliable in wet, dusty, and grassy conditions typical of UK use
– Sensible preventive replacement to minimise downtime during the mowing season

Typical Applications:
Restoring lost drive or cutting performance on Stihl walk-behind mowers due to a worn or slipping belt. Suitable for routine servicing of domestic machines and for maintaining small commercial fleets used by landscapers, groundskeepers, and hire operators. Helps ensure efficient mowing on small gardens through to larger lawns and managed green spaces.

Also known as:
Drive belt, mower drive belt, transmission belt, traction belt, power transmission belt, deck drive belt, replacement lawn mower belt.

Fits Models:
MB 545.0 T
MB 545.1 T
MB545
RM 545.0 T
RM 545.1 T
RM545

Alternate Part Numbers:
6340-704-2110, 63407042110

Product Specifications