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GeoTrencher – 400mm Trencher – Stihl TS420

EAN: 9421037730608 SKU GTS-TS420-400 Category

GeoTrencher – 400mm Trencher – Stihl TS420

Elevate trenching endeavors with the GeoTrencher Stihl TS420, the ultimate compact trenching solution. Precision, efficiency, and reliability blend seamlessly in this trencher designed for both professionals and DIY enthusiasts. A harmonious fusion of power, innovation, and user-centric features ensures impeccable accuracy, ease, and efficiency in every trenching task.



  • Premium Filter System: Experience enhanced engine protection and longevity with the STIHL TS 420 Powerhead’s premium filter system. Designed to maintain clean and efficient engine performance, this system minimizes maintenance intervals and ensures uninterrupted operation, reflecting an unwavering commitment to reliability and efficiency.
  • Decompression Valve for Seamless Start-Up: Simplify engine ignition with the inclusion of a decompression valve. By reducing cylinder pressure, this feature facilitates effortless engine starts, emphasizing operational convenience and user-friendly functionality.
  • STIHL 2-MIX Engine: Harness the power of innovation with the STIHL 2-MIX engine, incorporating an advanced stratified charge system. This cutting-edge technology amplifies power output, reduces fuel consumption, and minimizes pollution, ensuring cleaner, more efficient, and environmentally-conscious trenching operations.
  • Long-Life Air Filter System with Cyclone Air Routing: Benefit from extended maintenance intervals and enhanced efficiency with the long-life air filter system. Designed with cyclone air routing, this system effectively separates and transports dust particles, contributing to overall maintenance efficiency and operational longevity.
  • STIHL Anti-Vibration System: Prioritizing operator comfort and well-being, the STIHL anti-vibration system integrates buffer and spring elements to minimize engine vibrations transmitted to the operator’s arms and hands. This feature ensures comfortable and stress-free operation during prolonged trenching endeavors.
  • Manual Fuel Pump (Purger) for Expedited Start-Up: Streamline engine ignition with the manual fuel pump, or purger, reducing starting strokes by approximately 40%. This feature accelerates fuel supply, facilitating quicker starts and enhancing operational efficiency.
  • Compensator for Consistent Engine Power: Maintain consistent engine power and performance with the compensator in the carburettor. This innovative feature prevents fuel-air mixture enrichment, ensuring a constant fuel/air ratio and consistent engine power, reflecting a commitment to performance excellence.


  • Weight with 400mm bar: 13.0 kg
  • Displacement: 66.7 cc (4.07 cu. in.)
  • Engine Power: 3.2 kW (4.4 bhp)
  • Fuel Tank Capacity: 710 cc (24 oz.)
  • Engine Speed: 9,000 rpm (Elec. Gov.)
  • Maximum Spindle Speed: 5,350 rpm
  • Arbor Size: 0 mm
  • Maximum Wheel Size: 350 mm (14″)
  • Maximum Cutting Depth: 125 mm (4.9″)
  • Power Source: Gas
  • Weight: 9.6 kg (21.2 lbs.)


Experience the epitome of trenching excellence with the GeoTrencher – 400mm Trencher – Stihl TS420. Whether tackling professional projects or engaging in DIY endeavors, this trencher promises unparalleled performance, reliability, and efficiency. Trust in this compact powerhouse to redefine trenching excellence, ensuring optimal outcomes and operational satisfaction with every application. With the GeoTrencher Stihl TS420, excellence is not an option; it’s a guarantee.


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