Chainsaw
Husqvarna 445
2-Stroke
The Husqvarna 445 is a 45.7cc 2-stroke chainsaw and the mid-point of Husqvarna's E-series consumer lineup, suited for regular firewood production and occasional felling of medium-diameter trees with 13" to 18" guide bars. The X-Torq engine provides improved torque and fuel economy over the previous generation. The 445 runs a Zama carburetor and accepts the NGK BPMR7A or Champion RCJ6Y spark plug. Parts families overlap with the 435 and 440 within the E-series. Routine maintenance: spark plug, air filter, primer bulb, and fuel system components.
Husqvarna 445 quick specs
- Equipment
- Chainsaw · 2-Stroke
- Covered Parts
- Spark Plug, Air Filter, Fuel Filter, Carburetor, Recoil Starter, Ignition Coil, Primer Bulb, Fuel Line Kit, Chain, Guide Bar
- OEM References
- 8
- Model Family
- 445, 450, 455 Rancher
Spark Plug
OEM537254402(0.5mm gap)OEM is Champion RCJ7Y equivalent; also fits 435, 440, 450
| Brand | Part # | |
|---|---|---|
| NGK | BPMR7A | Buy on Amazon → |
| Champion | RCJ7Y | Buy on Amazon → |
Air Filter
OEM544080802Fits 445 and 450 series; also referenced as 544080803
| Brand | Part # | |
|---|---|---|
| Stens | 605-414 | Buy on Amazon → |
Fuel Filter
OEM503446501In-tank pickup filter
| Brand | Part # | |
|---|---|---|
| Stens | 610-035 | Buy on Amazon → |
Carburetor
OEM506450401Zama C1M-EL37B; also fits 445E, 450, 450E
| Brand | Part # | |
|---|---|---|
| Zama | C1M-EL37B | Buy on Amazon → |
Recoil Starter
OEM544071604Also fits 450
| Brand | Part # |
|---|
Ignition Coil
OEM573935702Also fits 435, 440, 450; replaces 505427201, 544243801
| 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(18", .325" pitch, .050" gauge, 72 drive links)Stock bar length; verify drive link count matches your bar
| Brand | Part # | |
|---|---|---|
| Oregon | 95TXL072E | Buy on Amazon → |
Guide Bar
OEM(18", .325" pitch, .050" gauge)
| Brand | Part # | |
|---|---|---|
| Oregon | 180TXLBK095 | Buy on Amazon → |