Chainsaw
Husqvarna 450
2-Stroke
The Husqvarna 450 is a 50.1cc <!-- verify: husqvarna.com/us --> 2-stroke chainsaw at the top of Husqvarna's homeowner range, suited for demanding firewood production, regular felling, and prosumer land management with 18" to 20" guide bars. It runs a Zama carburetor and features the X-Torq engine with Air Injection pre-cleaning. The 450 shares service parts families with the 455 Rancher. Common maintenance items are the spark plug, air filter, fuel filter, primer bulb, and bar oiler. A popular step-up from the 445 for users who regularly fell trees larger than 12" in diameter.
Spark Plug
OEM537254402(0.5mm gap)
| Brand | Part # | |
|---|---|---|
| NGK | BPMR7A | Buy on Amazon → |
| Champion | RCJ7Y | Buy on Amazon → |
Air Filter
OEM531009748Fits 450 and 450e
| Brand | Part # | |
|---|---|---|
| Stens | 605-414 | Buy on Amazon → |
Fuel Filter
OEM503446501
| Brand | Part # | |
|---|---|---|
| Stens | 610-035 | Buy on Amazon → |
Carburetor
OEM545070601Zama C1Q-EL24A
| Brand | Part # | |
|---|---|---|
| Zama | C1Q-EL24A | Buy on Amazon → |
Ignition Coil
OEM544454801Also fits 435, 440
| 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(20", .325" pitch, .050" gauge, 78 drive links)Stock bar length; verify drive link count matches your bar
| Brand | Part # | |
|---|---|---|
| Oregon | 20BPX078G | Buy on Amazon → |
Guide Bar
OEM(20", .325" pitch, .050" gauge)
| Brand | Part # | |
|---|---|---|
| Oregon | 200TXLBK095 | Buy on Amazon → |