Description
Overview:
This genuine Stihl spur sprocket is a direct replacement drive component for selected self‐propelled walk‐behind mowers, including MB 665.3 RS and RM 655 RS. Built from durable steel with a precise tooth profile, it transmits power within the mower's drive system to keep propulsion smooth and consistent. Replacing a worn sprocket helps restore correct chain/gear engagement, reduces slippage, and supports even ground speed for cleaner cutting results. It is engineered to Stihl specifications for reliable fit and alignment, matching OEM No. 6374 704 5500. Designed for routine service or repairs, it fits the listed Stihl models without modification and helps extend the life of surrounding drive parts when installed and maintained correctly. Genuine Stihl part for assured compatibility and performance.
Key Features:
- Genuine Stihl replacement sprocket for accurate fit and function (OEM No. 6374 704 5500)
- Durable steel construction for good wear resistance in high‐load drive applications
- Precision tooth form to maintain smooth chain/gear engagement and consistent drive
- Direct-fit for the specified models; no machining or adaptation required
- Helps cure symptoms such as jerky drive, chain skipping, or loss of propulsion
- Supports longer service life of chains/gears by restoring correct alignment
- Suitable for professional and domestic use where reliability is important
- Replacement for 6374-704-5500 and 63747045500
Typical Applications:
Used during drive system maintenance or overhaul on Stihl walk‐behind mowers when propulsion becomes uneven, noisy, or weak. Ideal when teeth are visibly worn or the chain/gear jumps under load. Commonly replaced as part of seasonal servicing to maintain smooth, reliable forward drive in landscaping, groundskeeping, and domestic lawn care.
Also known as:
Gear wheel, drive sprocket, chain wheel, lawn mower drive cog, transmission sprocket, mower drive gear.
Fits Models:
MB 655.3 RS, MB 665.3 RS, MB655.3RS, MB665.3RS, RM 655 RS, RM 655.0 RS, RM 655.1 RS, RM655.0RS, RM655.1RS, RM655RS
Alternate Part Numbers:
6374-704-5500, 63747045500
Product Specifications
| L&S Part No. | 6374 704 5500 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 63747045500 |
| Unit of Sale | 1 |
| Applications | MB 655.3 RS, MB 665.3 RS, MB655.3RS, MB665.3RS, RM 655 RS, RM 655.0 RS, RM 655.1 RS, RM655.0RS, RM655.1RS, RM655RS |
| Machine Type | Mowers |
| Fits Brands | Stihl |
| Fits Models | RM 655.0 RS | MB 655.3 RS | RM 655.1 RS |
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