Description
Overview:
This genuine Stihl tension spring (MPN 6375 703 5120) is a small but critical replacement part for Stihl walk-behind lawn mowers, including the MB 650 and MB 655 series. Made from robust spring steel, it provides the correct, consistent pull needed to keep mower linkages and mechanisms working smoothly. A worn, stretched, or broken spring can cause poor drive engagement, slack cables, or unreliable operation; replacing it restores proper tension and improves reliability. The spring is built to the original specification so it fits directly in place of the factory part without modification. It is suitable for a range of Stihl models in the MB 650, MB 655, MB 750 and MB 755 families, helping maintain dependable cutting and drive performance.
Key Features:
- Genuine Stihl part for MB 650/655/750/755 series; correct fit and function (MPN 6375 703 5120)
- Provides stable, accurate tension for linkages, idlers, belts and control cables
- Durable spring-steel construction resists deformation and fatigue under repeated use
- Direct replacement for the original spring; no modifications required
- Helps restore smooth drive engagement and consistent control response
- Suitable replacement for worn, stretched or broken springs to prevent downtime
- Straightforward to fit with basic hand tools in typical service procedures
- Supports long service life when installed and used within the intended applications
Typical Applications:
Used in lawn mower control and drive systems to maintain tension on belts, idlers or linkage returns. Commonly found in self-propel drive engagement, deck or brake/clutch linkages, and control cable return points on Stihl MB 650, MB 655, MB 750 and MB 755 series mowers.
Also known as:
Tension spring, return spring, drive spring, idler spring, deck spring, control spring, mower linkage spring, replacement spring for Stihl MB series.
Fits Models:
MB 650, MB 650.0 KS, MB 650.0 OS, MB 650.0 T, MB 650.0 TK, MB 650.0 V, MB 650.0 VE, MB 650.0 VM, MB 650.0 VQ, MB 650.0 VR, MB 650.0 VS, MB 650.1 V, MB 650.1 VM, MB 655, MB 655.0 G, MB 655.0 GK, MB 655.0 GM, MB 655.0 GQ, MB 655.0 GS, MB 655.0 KS, MB 655.0 OS, MB 655.0 V, MB 655.0 VM, MB 655.1 G, MB 655.1 GS, MB 655.1 RS, MB 655.1 V, MB 655.1 VM, MB 655.1 VR, MB 655.1 VS, MB 655.2 RS, MB 750, MB 750.0 GK, MB 750.1 GK, MB 750.1 KS, MB 750.2 KS, MB 755, MB 755.0 KS, MB 755.1 KS, MB 755.2 KS
Alternate Part Numbers:
6375-703-5120, 63757035120
Product Specifications
| L&S Part No. | 6375 703 5120 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 63757035120 |
| Unit of Sale | 1 |
| Applications | MB 650, MB 650.0 KS, MB 650.0 OS, MB 650.0 T, MB 650.0 TK, MB 650.0 V, MB 650.0 VE, MB 650.0 VM, MB 650.0 VQ, MB 650.0 VR, MB 650.0 VS, MB 650.1 V, MB 650.1 VM, MB 655, MB 655.0 G, MB 655.0 GK, MB 655.0 GM, MB 655.0 GQ, MB 655.0 GS, MB 655.0 KS, MB 655.0 OS, MB 655.0 V, MB 655.0 VM, MB 655.1 G, MB 655.1 GS, MB 655.1 RS, MB 655.1 V, MB 655.1 VM, MB 655.1 VR, MB 655.1 VS, MB 655.2 RS, MB 750, MB 750.0 GK, MB 750.1 GK, MB 750.1 KS, MB 750.2 KS, MB 755, MB 755.0 KS, MB 755.1 KS, MB 755.2 KS, MB650, MB650.0KS, MB650.0OS, MB650.0T, MB650.0TK, MB650.0V, MB650.0VE, MB650.0VM, MB650.0VQ, MB650.0VR, MB650.0VS, MB650.1V, MB650.1VM, MB6500T, MB6500V, MB6501V, MB655, MB655.0G, MB655.0GK, MB655.0GM, MB655.0GQ, MB655.0GS, MB655.0KS, MB655.0OS, MB655.0V, MB655.0VM, MB655.1G, MB655.1GS, MB655.1RS, MB655.1V, MB655.1VM, MB655.1VR, MB655.1VS, MB655.2RS, MB6550G, MB6550V, MB6551G, MB6551V, MB750, MB750.0GK, MB750.1GK, MB750.1KS, MB750.2KS, MB755, MB755.0KS, MB755.1KS, MB755.2KS |
| Machine Type | Mowers |
| Fits Brands | Stihl |
| Fits Models | MB 650.0 T | MB 650.1 VM | MB 650.0 VR | MB 655.1 G | MB 655.1 VM | MB 655.1 VR | MB 650.0 OS | MB 650.0 KS | MB 650.0 TK | MB 650.0 V | MB 650.1 V | MB 650.0 VE | MB 650.0 VM | MB 650.0 VQ | MB 650.0 VS | MB 655.0 G | MB 655.0 GK | MB 655.0 GM | MB 655.0 GQ | MB 655.0 GS | MB 655.1 GS | MB 655.0 KS | MB 655.0 OS | MB 655.1 RS | MB 655.2 RS | MB 655.0 V | MB 655.1 V | MB 655.0 VM | MB 655.1 VS | MB 750.0 GK | MB 750.1 GK | MB 750.1 KS | MB 750.2 KS | MB 755.0 KS | MB 755.1 KS | MB 755.2 KS |
