New, overstocked inventory, in-stock and ready to ship – surplus inventory, limited supply.

The Echo CS-4510 was built around a straightforward principle: whether the work calls for seemingly endless storm cleanup or bucking loads of firewood, deliver power and performance for the long haul. The 45.0cc professional-grade 2-stroke engine sits between the CS-4920 and smaller entry saws in Echo's rear-handle lineup — enough displacement to handle hardwood, thick-limbed trees, and sustained firewood cutting without the weight of a larger-bore saw, in a platform that keeps dry weight at 11 lbs. for a machine that stays manageable across a long workday. The 18" bar with 20BPX chain covers the full range of mid-size timber work — firewood rounds, storm-downed trees, small-to-medium diameter felling — and handles logs up to 32" in a single cut without requiring a second pass or repositioning.

The butterfly-valve diaphragm carburetor with integrated purge bulb delivers fresh fuel to the carburetor before starting, ensuring consistent, fast cold starts even after extended storage between uses — a practical advantage for property owners and grounds crews who don't run the saw every day. A digital ignition system automatically adjusts engine timing for consistent power output across varying conditions, and a spring-assist starter reduces pull effort at the rope for easier, lower-strain starting that holds up over thousands of cycles. The choke with automatic fast idle engages the correct starting configuration in a single lever position rather than requiring the operator to manage choke and throttle separately — speeding up the starting sequence and reducing the opportunity for flooding. A dual-post chain brake improves durability over the life of the saw compared to single-post designs, and the momentary stop switch automatically returns to the ON position after each shutdown so the saw is always ready to restart. The heavy-duty automotive-style air filter extends engine life by capturing more debris than standard felt filter designs, and a side-access chain tensioner allows fast in-field bar and chain adjustment without removing the bar cover. The auto/adjustable bar oiler allows the operator to tune oil flow to match cutting conditions and chain speed, and a translucent fuel tank gives a quick visual fuel level check at a glance. A three-point vibration reduction system with integrated spring-mounted components minimizes vibration for reduced fatigue during extended cutting sessions.

• 45.0cc Professional 2-Stroke Engine with Digital Ignition and Spring-Assist Starter — the digital ignition system automatically adjusts timing for consistent power in any condition, while the spring-assist starter reduces rope pull effort for easier starting that holds up reliably across thousands of cycles in the field
• Butterfly-Valve Diaphragm Carburetor with Purge Bulb and Choke/Auto Fast Idle — the purge bulb delivers fresh fuel before cold starts for consistent ignition even after storage, and the single-lever choke with automatic fast idle simplifies the starting sequence and reduces the risk of flooding that costs time on the job site
• Dual-Post Chain Brake with Momentary Auto-Reset Stop Switch and Side-Access Tensioner — the dual-post brake design improves long-term durability over single-post systems, the momentary stop switch resets automatically to ON after each shutdown to eliminate restart confusion, and side-access tensioning keeps chain adjustment fast and clean in the field

Make: Echo
Model: CS-4510-18 Rear-Handle Chainsaw
Model #: ECCS-4510-18
Equipment #: C71315031277
Bar/Chain: 18" / 20BPX
Location: Northern California
Condition: New