Echo CS-4510 vs Husqvarna 440

Echo CS-4510

Echo / Gas

Echo CS-4510

40cc class

~$390

See it at Echo
Husqvarna 440

Husqvarna / Gas

Husqvarna 440

40cc class

~$400

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The Echo CS-4510 costs about $10 less; the Echo CS-4510 has more engine (45cc); the Husqvarna 440 swings a longer bar (18 in).

SpecEcho CS-4510Husqvarna 440
Approx. price~$390with 16" bar and chain~$400with 18" bar and chain
Engine class40cc classby displacement40cc classby displacement
Power typeGasGas
Use caseFarm & RanchHomeowner
Engine45 cc40.9 cc
Rated power—1.79 kW
Bar length16 in18 in
Single-pass cutabout 14 inabout 16 in
Bar range16-18 in13-18 in
Chain.325" pitch / .050" gauge (laminated bar).325" pitch / .050" gauge (H30)
Weight11.1 lbpowerhead only (dry, without bar and chain)9.78 lbpowerhead only (excl. cutting equipment)
Warranty5-year consumer / 1-year commercial2-year residential (extends to 5 years with qualifying Husqvarna pre-mix fuel purchase and online registration)

Tinted cells mark the better figure on that row alone: more engine, longer bar, lighter, cheaper. A lighter weight is only a win on the same basis.

What owners like and complain about

Echo CS-4510

  • Spring-assist starter noticeably reduces pull effort for a 45cc saw
  • Momentary stop switch springs back to ON, removing a classic no-start red herring
  • Tool-less air filter access and an automatic adjustable oiler for field maintenance
  • .325" chain on a 16- or 18-inch bar is a faster-cutting setup than the 3/8 low-profile homeowner saws
  • 5-year consumer warranty with Home Depot and Echo dealer support
  • Hard to justify against Echo's own CS-4920 — same 11.1 lb, 50.1cc instead of 45, 20-inch bar capable, for about $20 more
  • Seeps bar oil when stored with a full oil tank
  • Owners report stubborn cold starts, and several say it runs poorly on lower-octane pump gas
  • Thrown chains during break-in and a chain brake that is awkward to disengage when fitting a new chain
  • Capped at an 18-inch bar, so it is not a felling saw

Husqvarna 440

  • 9.78 lb powerhead is the lightest rear-handle gas saw in Husqvarna's current US range
  • X-Torq engine uses noticeably less fuel than older two-strokes of the same displacement
  • Smart Start reduces pull resistance enough that most owners start it one-handed on the stand
  • Side-mounted chain tensioner, no need to hunt for a scrench mid-cut
  • .325/.050 H30 chain is stocked by every Husqvarna dealer and most hardware stores
  • $400 street price undercuts the 445S by $50 while saving nearly a pound and a half
  • Carburetor complaints dominate owner reports — hard starts and an idle that will not settle are the recurring pattern
  • 18-inch bar is the rated maximum, so there is zero room to step up
  • 40.9cc bogs in anything much over a 12-inch hardwood round
  • Long-term reviewers frequently recommend spending up to the 455 Rancher instead
  • No heated handles or AutoTune at a price where some competitors offer tool-less tensioning