Description
Overview:
This Genuine Stihl Spark Plug Boot (MPN 4144 405 1000) is the rubber cap that connects the ignition lead to the spark plug on Stihl handheld engines. Moulded from high-quality, durable rubber, it provides electrical insulation and a secure grip on the plug terminal to support consistent starting and smooth running. Designed for Stihl trimmers, brushcutters and Kombi engines, including KM 56 C and KM 56 RC, it is a direct replacement for worn or cracked boots that can cause arcing, misfires or intermittent cut-out. Suitable for everyday maintenance in garden and light site environments, it withstands vibration and debris, helping keep equipment reliable for tradespeople, grounds teams and home users.
Key Features:
- Genuine Stihl OEM part for assured fit and compatibility (MPN 4144 405 1000)
- Restores a reliable ignition connection to support easy starting and stable running
- High-quality rubber construction for insulation and a firm hold on the plug terminal
- Direct replacement for damaged or perished boots; no modifications required
- Helps prevent arcing and moisture ingress at the spark plug connection
- Suitable for a wide range of Stihl trimmers, brushcutters, pole tools and Kombi units
- Compact design fits neatly within factory shrouds and plug recesses
- Simple, quick installation during routine servicing or repairs
- Supports long service life when used with correctly maintained ignition leads and plugs
Typical Applications:
Replacement of cracked, loose or heat-aged spark plug boots on Stihl 2‐stroke handheld machines. Useful when resolving hard starting, intermittent cutting out, misfiring, or visible arcing at the plug. Common in routine fleet servicing for landscaping, grounds maintenance and property care, as well as DIY upkeep of garden tools to maintain dependable ignition performance.
Also known as:
Spark plug cap, ignition cap, HT lead boot, plug cap, ignition boot, HT cap, plug connector, spark cap.
Fits Models:
FC 56, FC 56 C, FC56, FC56C, FS 36, FS36, FS 40, FS40, FS 40 C, FS40C, FS 44, FS44, FS 50, FS50, FS 50 C, FS50C, FS 56, FS56, FS 56 C, FS56C, FS 56 R, FS56R, FS 56 RC, FS56RC, HL 56 K, HL56K, HT 56 C, HT56 C, HT56C, KM 56 C, KM56C, KM 56 RC, KM56RC, MM 56 MultiSystem, MM56MultiSystem
Alternate Part Numbers:
4144-405-1000, 41444051000
Product Specifications
| L&S Part No. | 4144 405 1000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41444051000 |
| Unit of Sale | 1 |
| Machine Type | Brushcutters, Trimmers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM part ensures correct fit and compatibility - High-quality rubber provides insulation and secure plug grip - Direct replacement for damaged boots; no modifications needed - Prevents arcing and moisture ingress at spark plug connection - Compatible with various Stihl trimmers and brushcutters models |
| Fits Models | FS36, FS40, FS44 | FS40, FS50 | FS56, FS56C, FS56R | HT56 C | KM56C, KM56RC | MM 56 MultiSystem | FC 56 | HL56K |
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