Chainsaw
Husqvarna 440
2-Stroke
The Husqvarna 440 is a 40.9cc <!-- verify: husqvarna.com/us --> 2-stroke chainsaw in the mid-tier of Husqvarna's E-series homeowner lineup, positioned between the 435 and 445. It accepts 13" to 18" guide bars, features the X-Torq engine and Air Injection filtration, and runs a Zama carburetor. It shares service parts with the 435 and 445 within the E-series family. The combined choke/stop control and side-mounted chain tensioner are standard. Routine maintenance items are the spark plug (NGK BPMR7A), air filter, fuel filter, and primer bulb.
ℹ See also: 435 — parts are often interchangeable within this family.
Spark Plug
OEM537254402(0.5mm gap)
| Brand | Part # | |
|---|---|---|
| NGK | BPMR7A | Buy on Amazon → |
| Champion | RCJ7Y | Buy on Amazon → |
Air Filter
OEM531009748Same filter as 435/435e
| Brand | Part # | |
|---|---|---|
| Stens | 605-414 | Buy on Amazon → |
Fuel Filter
OEM503446501
| Brand | Part # | |
|---|---|---|
| Stens | 610-035 | Buy on Amazon → |
Carburetor
OEM545070601Zama C1Q-EL24A; fits 435 and 440
| Brand | Part # | |
|---|---|---|
| Zama | C1Q-EL24A | Buy on Amazon → |
Recoil Starter
OEM574719103Also fits 435
| Brand | Part # |
|---|
Ignition Coil
OEM544454801Also fits 435, 450
| Brand | Part # |
|---|
Primer Bulb
OEM503936601
| Brand | Part # | |
|---|---|---|
| Zama | BG-00-4 | Buy on Amazon → |
Fuel Line Kit
OEM544128601Includes fuel pickup line and return line
| Brand | Part # | |
|---|---|---|
| Stens | 115-627 | Buy on Amazon → |
Chain
OEM(16", .325" pitch, .050" gauge, 66 drive links)Stock bar length; verify drive link count matches your bar
| Brand | Part # | |
|---|---|---|
| Oregon | 20BPX066G | Buy on Amazon → |
Guide Bar
OEM(16", .325" pitch, .050" gauge)
| Brand | Part # | |
|---|---|---|
| Oregon | 160TXLBK095 | Buy on Amazon → |