Light-weight professional petrol chain saw, ideal for all-round use.

Where to buy

Incredible power to weight ratio with the robust build standards ECHO is famous for. The CS-420ES combines light weight construction (4.6kg) with a powerful 40.2cm³ professional grade engine.

Professional engine

Professional engine

Featuring a 40.2cm³ professional grade engine, giving exceptional power and performance. Like all ECHO engines, it's manufactured in Japan to the highest possible standards,

Compact, ergonomic design.

Compact, ergonomic design.

ECHO chain saws are all designed to the same professional standard, with no exceptions. Hard working, high quality with renowned Japanese build standards.

Bar and chain

Bar and chain

With a 43cm (17″) guide bar, the CS-420ES is a mid-range, low emission chain saw that is ideal for tree surgeons or farmers for felling trees and logging.

Best Features.

Power to weight ratio

Super light-weight design with exceptional power.


Designed to maximise efficiency and comfort.

Easy start engine

ECHO’s patented system for effortless starting.

Product Details.

CO² (g/kW・h) 1 958
Sound power level (dB(A)) 108.9
Sound pressure level (dB(A)) 99.6
Vibration Front handle/Rear handle (m/s²) 4.4 / 6.4
Applicable Bar Length (cm/inch) 2 38, 45 / 15, 18
Chain Brake Inertia
Chain Oil Tank Capacity 0.280
Chain Tensioner Side
Choke w/ Automatic Fast Idle Release Yes
Dry Weight (kg) 4.6
Engine displacement (cm³) 40.2
Fuel Consumption At Maximum Engine Power (L/h) 0.95
Fuel tank capacity (l) 0.41
Guide Bar Gauge (inch) 0.058 (0.050)
Ignition System CDI
Output (kw) 1.6
Output (ps) 2.2
Priming Pump Yes
Saw Chain Pitch (inch) 0.325
Start Assist System ES-start
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.
Not all lengths available in every country. Available bar lengths may incur differing RRPs. Please check with your local dealer.

Other Features.

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