ECHO CS-4920 18" Petrol Chainsaw
Think of the CS-4920 as the CS-4510's bigger, more capable sibling. It steps up to a 50.1cc professional-grade stratified scavenging engine that, according to ECHO, puts out more power with fewer emissions than anything else in its class — and at 2.5kW from a saw that weighs just 5.0kg, the power-to-weight ratio is seriously good.
The professional touches are what make it stand out at this price point. Dual drop prevention bar nuts mean you're not hunting around in the grass for lost hardware mid-job, the heavy-duty air filter with tool-less access keeps maintenance straightforward, and the momentary switch is a nice practical detail that experienced operators will appreciate. ES Easy Start rounds things off nicely — no brute force required to get it going.
With an 18" bar it covers the same ground as the CS-4510 in terms of cutting length, but with noticeably more grunt behind it. A solid choice if you're doing regular work and want something that'll keep up without complaint.
Specifications
| Engine Displacement | 50.1cc |
| Output | 2.5kW |
| Dry Weight | 5.0kg |
| Fuel Tank Capacity | 480ml |
| Bar Length | 45cm / 18" |
| Chain Pitch | 0.325" |
| Bar Gauge | 0.050" |
| Ignition System | CDI |
| Start System | ES-Start |
| Chain Brake | Inertia |
| Sound Pressure Level | 102.5 dB(A) |
| Sound Power Level | 111.8 dB(A) |
| Vibration (Front/Rear) | 3.5 / 3.4 m/s² |
