Description
Overview:
The Valve Spring for Stihl BR500 and BR550 is a genuine Stihl engine component designed for use in the brand's professional backpack leaf blowers. Made from high‐grade spring steel, it maintains the correct valve tension within the Stihl 4‐MIX engine so the valves open and close precisely. This supports compression, power delivery and smooth running under load. Use it to replace a weakened or worn spring during routine servicing or an engine rebuild to help restore reliable starting, steady idle and full performance. Identified by OEM Part No. 4282 025 1600, it is engineered for an accurate fit and dependable operation in demanding working conditions typical of grounds care, landscaping and facilities maintenance.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- Manufactured to OEM specifications for correct spring rate and fit
- Hardened spring steel construction for durability and fatigue resistance
- Helps maintain valve control, compression and consistent power output
- Supports easier starting and smoother idle when replacing a tired spring
- Suitable for the Stihl 4‐MIX engine used in specified backpack blowers
- Direct replacement part installed following Stihl service procedures
- Reliable choice for preventative maintenance and engine overhauls
Typical Applications:
Used during scheduled servicing or repair of Stihl backpack blowers to replace a fatigued valve spring that may cause loss of power, poor idle or hard starting. Suitable for professional workshops, hire fleets and DIY users maintaining their own equipment. Ideal when refurbishing cylinder heads or restoring performance on machines used for leaf clearance, site clean‐ups, landscaping and grounds maintenance.
Also known as:
Engine valve return spring, intake valve spring, exhaust valve spring, poppet valve spring, cylinder head valve spring, blower valve spring replacement, Stihl 4‐MIX valve spring.
Fits Models:
BR500, BR550, BR600, BR700
Alternate Part Numbers:
4282-025-1600, 42820251600
Product Specifications
| L&S Part No. | 4282 025 1600 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42820251600 |
| Unit of Sale | 1 |
| Machine Type | Backpack Blowers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with BR500, BR550, BR600, BR700 - OEM specifications guarantee correct spring rate and fit - High-grade spring steel offers durability and fatigue resistance - Maintains valve control for consistent power output - Supports easier starting and smoother idle in 4-MIX engines |
| Fits Models | BR500 | BR550 | BR600 | BR700 | BR800 |


