Description
Overview:
The Spark Plug Boot for Stihl SR430 and SR450 (OEM part no. 4244 405 1000) is a genuine Stihl ignition cap for the connection between the high-tension (HT) lead and the spark plug on selected backpack blowers and mistblowers. Made from a durable, heat‐, oil‐ and fuel‐resistant elastomer with high dielectric insulation, it seals the plug terminal and provides a stable electrical path while keeping out moisture and debris. A sound boot helps prevent arcing, misfires and hard starting, especially under vibration. Designed specifically for Stihl machines such as the SR 430 and SR 450, it delivers the correct fit and alignment required by the ignition system. Use it as a direct replacement when the existing cap is cracked, loose, hardened or perished.
Key Features:
- Genuine Stihl OEM component for correct fit and reliability (PN 4244 405 1000)
- Tough, heat‐resistant elastomer body withstands temperature, oil and fuel exposure
- High-dielectric insulation helps prevent arcing and supports consistent starting
- Positive grip on the spark plug terminal and HT lead for dependable spark delivery
- Resists vibration, dust and moisture for long service life in demanding environments
- Simple push-on replacement; quick to fit with basic hand tools
- Suitable for routine servicing or repair on BR 350/430/450 and SR 430/440/450 platforms
Typical Applications:
Used during ignition maintenance on backpack blowers and mistblowers to restore a secure plug connection and reliable spark. Ideal for professional grounds care, landscaping, estate work, municipal leaf clearance, and spraying or dusting tasks with SR machines. Helps maintain smooth running in equipment that sees frequent start-stop cycles and extended operating periods.
Also known as:
HT cap, high‐tension boot, suppressor cap, spark plug connector, ignition lead cap, plug terminal cap, coil‐to‐plug cap.
Fits Models:
BR 350, BR 430, BR 450, BR 450 C, SR 430, SR 430-Z, SR 440, SR 450, SR 450-Z
Alternate Part Numbers:
4244-405-1000, 42444051000
Product Specifications
| L&S Part No. | 4244 405 1000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42444051000 |
| Unit of Sale | 1 |
| Machine Type | Mist Blowers, Backpack Blowers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM part for SR430 and SR450 - Heat‐resistant elastomer resists oil and fuel - High-dielectric insulation prevents arcing - Fits BR 350/430/450 and SR 430/440/450 - Resists vibration, dust, and moisture |
| Fits Models | BR350, BR430, BR450 | SR 430, SR 450 | SR 430-Z | SR 440 | SR 450-Z | BR430 | BR450, BR450C |
