The CS-4920 is a heavier duty version of the CS-4510. It features a 50.1 cm³ professional grade 2-stroke, stratified scavenging engine that provides more power and less emissions than any other saw in the same class. At just 5.0 kg with professional features like dual drop prevention bar nuts, a heavy-duty air filter with tool-less access and a momentary switch, it's ideal for a range of jobs.
Light weight and powerful 50 cm³ all-round chain saw.Where to buy
Powerful, super efficient engine.
The 50.1 cm³ professional grade 2-stroke, scavenger type engine that provides enormous power, whilst the dry weight is just 5.0 kg. We've used our decades of engine making experience to create an engine that's powerful and produces incredibly low emissions.
A heavy-duty air filter with our patented G-Force technology massively reduces the need for maintenance. The ergonomic, front handle ensures comfortable and precise control and dual drop prevention nuts mean smooth and precise cutting.
No hassle, just hard work.
Easy start technology alongside an always on, momentary switch means you can get to work without thinking about your saw. The tool-less air filter cover and tank openings make this saw a pleasure to use.
Ultra light weight
Engineered to weigh less whilst retaining robust durability.
ECHO’s patented system for effortless starting.
Ease of use
Power on and get to work. Intuitive controls and features make your job a breeze.
|Engine displacement (cm³)||50.1|
|Dry Weight (kg)||5.0|
|Fuel tank capacity (l)||0.48|
|Chain Oil Tank Capacity (ml)||330|
|Fuel Consumption At Maximum Engine Power (L/h)||1.32|
|Start Assist System||ES-Start|
|Choke w/ Automatic Fast Idle Release||Yes|
|Saw Chain Pitch (inch)||0.325|
|Guide Bar Gauge (inch)||0.050|
|Applicable Bar Length (cm/inch) 1||38, 45 / 15, 18|
|Sound pressure level (dB(A))||102.5|
|Sound power level (dB(A))||111.8|
|CO² (g/kW・h) 2||808|
|Vibration Front handle/Rear handle (m/s²)||3.5 / 3.4|
- Not all lengths available in every country. Available bar lengths may incur differing RRPs. Please check with your local dealer.
- This CO² measurement results from testing a (parent) engine representative of the engine type (engine family) over a fixed test cycle under laboratory conditions and does not imply or express any guarantee of the performance of a particular engine.