The STIHL 19mm x 16mm T27 Combination Wrench / Scrench (Part Number: 4180-890-3400) is a specialized genuine OEM multi-tool engineered specifically for maintaining STIHL 4-MIX® engines, trimmers, blowers, and hedge trimmers. Combining a 19mm deep spark plug socket, a 16mm socket, and a T27 Torx drive tip on the handle shaft, this multi-use tool provides everything required for field maintenance, spark plug service, gearhead adjustments, and engine shroud removal without needing a dedicated toolbox.
- Genuine STIHL OEM Service Tool: Factory replacement part (Part # 4180-890-3400 / 4180 890 3400) crafted to precise tolerances for a solid, non-slip fit on commercial power equipment.
- 3-in-1 Maintenance Tool: Integrates a 19mm spark plug socket, a 16mm socket, and a T27 Torx head bit to handle routine field adjustments and teardowns.
- T27 Torx Head Driver: Built-in T27 star drive tip matches STIHL factory hardware, allowing quick access to engine covers, starter housings, and muffler shields.
- Heavy-Duty Hardened Steel: Forged from high-tensile, corrosion-resistant alloy steel to withstand continuous jobsite torque without rounding fasteners.
- Broad 4-MIX® & Handheld Compatibility: Designed for STIHL 4-MIX® engines and 2-stroke handheld units, including KM 90, KM 110, KM 130 KombiEngines, FS series trimmers (FS 90, FS 110, FS 130), HT pole pruners, HS hedge trimmers, and BG blowers.