Description
Overview:
This genuine Stihl torsion spring is a small, high-strength component made from durable spring steel. It provides rotational force to return or hold mower linkages in position, helping controls and mechanisms operate smoothly and consistently. It is designed for Stihl walk-behind lawn mowers and fits a broad range of corded, petrol, and battery models, including ME 339.1 C and MB 448.1 TC. Using the correct spring restores reliable operation when an original spring has weakened or failed through wear and fatigue. As a genuine part (Stihl OEM reference 6338 703 4900), it offers the correct wire diameter, coil count, and leg geometry for an accurate fit and dependable performance, supporting long service life with minimal maintenance.
Key Features:
- Genuine Stihl part for assured compatibility and build quality (OEM 6338 703 4900)
- High-tensile spring steel resists fatigue and maintains consistent torque over time
- Restores correct return force to levers and linkages for smooth mower operation
- Precisely formed legs to seat correctly in the intended mounting points
- Helps prevent slack controls and unreliable engagement caused by worn springs
- Compact design for straightforward fitting with basic hand tools
- Suitable for a wide range of Stihl battery, electric, and petrol mowers
- Practical, cost-effective replacement to maintain performance and extend machine life
Typical Applications:
Replacement of a fatigued or broken torsion spring in mower control, drive, or deck-related mechanisms. Commonly used where rotational spring force is needed to return handles, engage/disengage linkages, or hold components in position. Ideal for routine maintenance or repairs to keep Stihl walk-behind lawn mowers operating reliably throughout the cutting season.
Also known as:
Torsion return spring, coil torsion spring, mower control spring, lever return spring, handle spring, linkage spring, deck mechanism spring, recoil/return spring for mower controls. These terms are often used in manuals or parts lists when referring to small rotational springs used in lawn mower mechanisms.
Fits Models:
MA 339.1 C, MA 443.1 C, MB 448.1 TC, MB 448.1 VC, MB 650.3 T, MB 650.3 V, MB 650.3 VS, MB 655.3 RS, MB 655.3 V, MB 655.3 VS, MB 655.3 YS, ME 339.1 C, ME 443.1 C, RM 448.0 TC, RM 448.0 VC, RM 448.1 TC, RM 448.1 VC, RM 650.0 T, RM 650.0 V, RM 650.0 VE, RM 650.1 VE, RM 655.0 RS, RM 655.0 V, RM 655.0 VS, RM 655.0 YS, RM 655.1 RS, RM 655.1 VS, RMA 239.1 C, RMA 339.0 C, RMA 410 C, RMA 443.0 C, RMA 443.0 TC, RMA 443.1 TC, RMA 443.2 C, RMA 443.2 VC, RMA 448.0 PC, RMA 448.0 TC, RMA 448.1 PC, RMA 448.1 TC, RMA 448.2 PV, RMA 448.2 VC, RMA 765.0 V
Alternate Part Numbers:
6338-703-4900, 63387034900
Product Specifications
| L&S Part No. | 6338 703 4900 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 63387034900 |
| Unit of Sale | 1 |
| Applications | MA 339.1 C, MA 443.1 C, MA339.1C, MA3391C, MA443.1C, MA4431C, MB 448.1 TC, MB 448.1 VC, MB 650.3 T, MB 650.3 V, MB 650.3 VS, MB 655.3 RS, MB 655.3 V, MB 655.3 VS, MB 655.3 YS, MB448.1TC, MB448.1VC, MB650.3T, MB650.3V, MB650.3VS, MB6503T, MB6503V, MB655.3RS, MB655.3V, MB655.3VS, MB655.3YS, MB6553V, ME 339.1 C, ME 443.1 C, ME339.1C, ME3391C, ME443.1C, ME4431C, RM 448.0 TC, RM 448.0 VC, RM 448.1 TC, RM 448.1 VC, RM 650.0 T, RM 650.0 V, RM 650.0 VE, RM 650.1 VE, RM 655.0 RS, RM 655.0 V, RM 655.0 VS, RM 655.0 YS, RM 655.1 RS, RM 655.1 VS, RM448.0TC, RM448.0VC, RM448.1TC, RM448.1VC, RM650.0T, RM650.0V, RM650.0VE, RM650.1VE, RM6500T, RM6500V, RM655.0RS, RM655.0V, RM655.0VS, RM655.0YS, RM655.1RS, RM655.1VS, RM6550V, RMA 239.1 C, RMA 339.0 C, RMA 410 C, RMA 443.0 C, RMA 443.0 TC, RMA 443.1 TC, RMA 443.2 C, RMA 443.2 VC, RMA 448.0 PC, RMA 448.0 TC, RMA 448.1 PC, RMA 448.1 TC, RMA 448.2 PV, RMA 448.2 VC, RMA 765.0 V, RMA239.1C, RMA339.0C, RMA410C, RMA443.0C, RMA443.0TC, RMA443.1TC, RMA443.2C, RMA443.2VC, RMA448.0PC, RMA448.0TC, RMA448.1PC, RMA448.1TC, RMA448.2PV, RMA448.2VC, RMA765.0V |
| Machine Type | Mowers |
| Fits Brands | Stihl |
| Fits Models | RMA 339.0 C | RMA 443.0 C | RMA 443.0 TC | RMA 448.0 TC | RM 448.0 TC | RM 448.0 VC | RM 650.0 T | RM 650.0 V | RM 655.0 V | RM 655.0 VS | RM 655.0 RS | ME 339.1 C | MB 448.1 TC | MB 448.1 VC | MB 650.3 T | MB 650.3 V | MB 655.3 V | MB 655.3 VS | MB 655.3 YS | MB 655.3 RS | MB 650.3 VS | MA 339.1 C | MA 443.1 C | ME 339.1 C | ME 443.1 C | RM 448.1 VC | RM 448.1 TC | RM 650.0 VE | RM 650.1 VE | RM 655.0 YS | RM 655.1 VS | RM 655.1 RS | RMA 765.0 V | RMA 239.1 C | RMA 410 C | RMA 443.1 TC | RMA 443.2 C | RMA 443.2 VC | RMA 448.0 PC | RMA 448.1 PC | RMA 448.1 TC | RMA 448.2 PV | RMA 448.2 VC | RMA 443.1 C |
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