Description
Overview:
The Sealing Ring for Stihl SR320 and SR400 mist blowers is a genuine Stihl component designed to restore and maintain airtight, leak-free joints in your machine. Made from a durable elastomer (rubber) compound suited to fuel and chemical exposure, it provides a tight seal at critical interfaces to help retain system pressure and prevent drips. By keeping intake, delivery, or casing joints sealed, it supports consistent atomisation and reliable performance in demanding use. As a direct replacement for OEM No. 4203 709 2001, it fits precisely without modification and helps extend service intervals by reducing fluid loss and contamination risk. This small part plays a key role in keeping your Stihl mist blower running smoothly and efficiently across regular maintenance cycles.
Key Features:
- Genuine Stihl part for assured compatibility and quality
- Direct replacement for OEM No. 4203 709 2001; MPN/Cross Ref: 42037092001 (4203-709-2001)
- Durable elastomer construction resists fuels, oils, and common misting chemicals
- Maintains a tight seal to reduce leaks and pressure loss
- Supports consistent spray output and machine efficiency
- Precision fit for quick, straightforward installation
- Helps protect adjacent components from fluid ingress and wear
- Long service life when used and stored under normal operating conditions
Typical Applications:
Used during maintenance or repair when a seal has flattened, cracked, or hardened. Suitable for sealing critical joints in Stihl mist blowers used for landscaping, grounds maintenance, agriculture, and pest control. Replacing a worn sealing ring can cure air or fluid leaks, restore pressure, improve atomisation, and reduce downtime.
Also known as:
O-ring, sealing gasket, packing ring, elastomer seal, collar seal. These terms are commonly used for round section seals that provide leak prevention at housings, couplings, or manifolds in spraying equipment.
Fits Models:
SR 200
SR 200 D
SR 200 Z
SR 320
SR 340
SR 400
SR 420
SR 5600
SR 5600 D
Alternate Part Numbers:
4203-709-2001, 42037092001
Product Specifications
| L&S Part No. | 4203 709 2001 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42037092001 |
| Unit of Sale | 1 |
| Applications | 400, SR 200, SR 200 D, SR 200 Z, SR 200-D, SR 200-Z, SR 320, SR 340, SR 400, SR 420, SR 5600, SR 5600 D, SR200, SR200D, SR200Z, SR320, SR340, SR400, SR420, SR5600, SR5600D |
| Machine Type | Mist Blowers |
| Fits Brands | Stihl |
| Fits Models | SR 200 | SR 200-D | SR 200-Z | SR 320, 400 | SR 340, SR 420 | SR 5600 | SR 5600 D |
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