A lightweight, nimble petrol chainsaw in the 40 cc class, the 540 XP® Mark III is built for professional tree care and thinning. It combines strong cutting capacity with easy starts (cold or hot) and smooth manoeuvrability, with features that reduce vibration and maintenance time on site. High cutting capacity The redesigned engine delivers the torque needed for productive cuts, so you can use longer bars when required without losing performance. Consistent engine tuning AutoTune 3.0 keeps the engine optimised across conditions, removing the need for manual carburettor adjustments and improving startability and reliability. Reduced wear and extended filter life Air Injection filters approximately 98% of incoming dust, which maintains performance during long workdays and reduces engine wear. Key specification Article ID 970793116 Power output 1.9 kW Cylinder displacement 39.1 cm³ Weight 4.1 kg Bar / blade / cutting length 40 cm Fuel tank 0.31 l Full specification Weight (excl. cutting equipment) 4.1 kg Product size height 24.7 cm Product size length 42.8 cm Product size width 22.6 cm Cylinder displacement (metric) 39.1 cm³ Output shaft power (metric) 1.9 kW Fuel tank volume (metric) 0.31 l Fuel Consumption 387 g/kWh Idling speed 3000 rpm Clutch engagement speed (±120) 4400 rpm Spark Plug NGK CMR7H Exhaust emissions (CO₂ EU V) 782 g/kWh Sound pressure level at operators ear (LpA) 102 dB(A) Sound power level, guaranteed (LWA) 113 dB(A) Packaging length 493 mm Packaging width 278 mm Packaging height 334 mm WEEE Classified No Equivalent vibration level (ahv, eq) rear handle 5.1 m/s² Chain speed at max power (m/s) (metric) 20 m/s Power/fuel type Gasoline Recommended bar length, min (metric) 30 cm Recommended bar length, max (metric) 40 cm Equivalent vibration level (ahv, eq) front handle 3.7 m/s² Chain pitch 3/8″ mini Chain type S93G Bar length (metric) 40 cm Bar length (inch) 16 in Spikes Mounted Nose type Sprocket nose Ignition module air gap (metric) 0.3 mm Cylinder stroke (metric) 31.1 mm Ignition module air gap (imperial) 0.01 in Cylinder stroke (imperial) 1.22 in Key features High cutting capacity New engine design offers plenty of grunt for peak performance even during longer cuts. The high cutting capacity makes the saw ideal for productive operation – even when using a longer guide bar. Always optimized Thanks to AutoTune 3.0, the engine settings are always optimized for maximum startability and performance in all conditions, keeping you going no matter the challenges. No need for manual carburetor adjustment. Felling sight to last a lifetime Perfect sight is critical when felling – so we made one that will outlast the chainsaw itself. Optimized saw body No protruding parts, a smooth underside, rounded starter cover and well-protected controls all make the saw easy to handle. Air Injection filters 98% of incoming dust Give you full working days with maintained performance and less wear on the engine. Connectivity ready Keep your saw and yourself up to date with Husqvarna’s digital services. Just plug in the optional Integrated Connectivity Device under the cover. Then you’re ready to connect and diagnose the engine. Flip up tank caps Easy to open and secure firmly, even when wearing thick winter gloves. LowVib® Effective anti-vibration dampeners absorb vibration, sparing the user’s arms and hands. Retained bar nut The retaining function prevents loosing the bar nut. Retained starter screws The retaining function prevents losing the screws holding the starter. Made for professional use Engineered for professional use, offering power, performance and durability for demanding tasks. Features Product video FAQs How many CC is a Husqvarna 540 XP® Mark III? The Husqvarna 540 XP® Mark III has an engine displacement of 40 cubic centimeters (CC). How much does a Husqvarna 540 XP® Mark III weigh? 4.1 kg excl. cutting equipment Is a Husqvarna 540 XP® Mark III a Pro saw? Yes, the Husqvarna 540 XP Mark III is a professional chainsaw in the 500-series. Built for demanding tree care and forestry work. It features a powerful 40cc X-Torq® engine, AutoTune™ 3.0 for optimal performance, and a lightweight, ergonomic design. With fast acceleration, high cutting capacity, and advanced filtration, it’s engineered for precision and durability in tough environments. What bar lengths can I use with this saw? Recommended bar length is 30–40 cm (12–16 in). The saw is supplied with a 16 in (40 cm) bar fitted. Do I need to adjust the carburettor on site? No. AutoTune 3.0 automatically optimises engine settings, so you do not need to make manual carburettor adjustments under normal working conditions. Can I connect the saw to Husqvarna digital services? Yes. The saw is connectivity ready — you can fit the optional Integrated Connectivity Device under the cover to enable diagnostics and data services.
