Description
Overview:
The Check Valve (Duck Bill) is a genuine Husqvarna fuel-system component for petrol chainsaws, OEM No. 530 02 61-19. Made from fuel- and oil‐resistant black elastomer rubber, it provides one‐way venting while preventing fuel backflow and leaks, helping maintain correct tank pressure and steady fuel delivery. Sized for factory housings, it measures 9.5 mm full length (0.37 in), 4.7 mm base outer diameter (0.19 in), and 1.4 mm inside hole diameter (0.06 in). Designed for Husqvarna chainsaws, it fits a broad range of homeowner and professional models, including the 236 and 120 Mark II. The compact duckbill profile seats neatly in the breather/vent location and keeps a reliable seal under vibration and changing temperatures for consistent performance.
Key Features:
- Genuine Husqvarna part for correct fit and performance (OEM 530 02 61-19).
- One‐way valve action prevents fuel backflow and leakage, stabilising fuel delivery.
- Fuel‐ and oil‐resistant elastomer construction for long service life.
- Compact dimensions: 9.5 mm length (0.37 in), 4.7 mm base OD (0.19 in), 1.4 mm inside hole (0.06 in).
- Simple to install during routine fuel system service; no special tools required.
- Helps reduce fuel starvation, flooding, and vapour escape from the tank.
- Reliable sealing under vibration and temperature changes.
- Compatible across a wide Husqvarna chainsaw range, from 120 Mark II to 572XP.
Typical Applications:
Used as the fuel tank breather/check valve on Husqvarna chainsaws to allow air in while preventing fuel and vapour from escaping. Ideal when servicing the fuel system, or when symptoms include hard starting, uneven idle, fuel smells, or leakage after use. Suitable for routine preventative maintenance to maintain stable running.
Also known as:
Non‐return valve, one‐way valve, backflow preventer, duckbill vent valve, fuel tank vent valve, tank breather check valve.
Fits Models:
120 Mark II, 120E Mark II, 120MARKII, 135, 135E, 136, 136LE, 137, 137E, 140, 140E, 141, 141LE, 142, 142E, 21 LCN, 21LCN, 23 L, 23 LC, 23 LCN, 230, 235, 235E, 236, 236E, 23L, 23LC, 23LCN, 23R, 240, 240E, 240E TrioBrake, 240ETrioBrake, 26 L, 26 LC, 26L, 26LC, 26R, 330i, 333, 334T, 335XPT, 336, 338XPT, 339XP, 340E, 345E, 346XP, 353, 357XP, 359, 36, 362, 365, 365 X-Torq, 365H, 372XP, 372XP X-Torq, 41, 435, 435E, 435EII, 435II, 435i, 436LI, 440E, 440EII, 440II, 445, 445E, 445EII, 445II, 450, 450E, 450EII, 455, 455 Rancher, 455 Rancher II, 455 RancherII, 455E, 455E Rancher II, 455E Rancher II TrioBrake, 455E TrioBrake, 455ERancherII, 455ETrioBrake, 460, 461, 465 Rancher II, 465RancherII, 535i XP, 535iXP, 536Li XP, 536LiXP, 545, 545 Mark II, 545G Mark II, 550XP, 550XP Mark II, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XPG, 550XPG Mark II, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 555, 556, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, 562XP, 562XP Mark II, 562XPG, 562XPG Mark II, 565, 570, 570II, 572XP, 572XPG, 575XP, 576XP, 576XP AutoTune, 576XPAutoTune, T535i XP, T535iXP, T536Li XP, T536LiXP
Alternate Part Numbers:
530 02 61-19, 530026119
Product Specifications
| L&S Part No. | 530 02 61 19 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 530026119 |
| Unit of Sale | 1 |
| Applications | 120 Mark II, 120E Mark II, 120MARKII, 135, 135E, 136, 136LE, 137, 137E, 140, 140E, 141, 141LE, 142, 142E, 21 LCN, 21LCN, 23 L, 23 LC, 23 LCN, 230, 235, 235E, 236, 236E, 23L, 23LC, 23LCN, 23R, 240, 240E, 240E TrioBrake, 240ETrioBrake, 26 L, 26 LC, 26L, 26LC, 26R, 330i, 333, 334T, 335XPT, 336, 338XPT, 339XP, 340E, 345E, 346XP, 353, 357XP, 359, 36, 362, 365, 365 X-Torq, 365H, 372XP, 372XP X-Torq, 41, 435, 435E, 435EII, 435II, 435i, 436LI, 440E, 440EII, 440II, 445, 445E, 445EII, 445II, 450, 450E, 450EII, 455, 455 Rancher, 455 Rancher II, 455 RancherII, 455E, 455E Rancher II, 455E Rancher II TrioBrake, 455E TrioBrake, 455ERancherII, 455ETrioBrake, 460, 461, 465 Rancher II, 465RancherII, 535i XP, 535iXP, 536Li XP, 536LiXP, 545, 545 Mark II, 545G Mark II, 550XP, 550XP Mark II, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XPG, 550XPG Mark II, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 555, 556, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, 562XP, 562XP Mark II, 562XPG, 562XPG Mark II, 565, 570, 570II, 572XP, 572XPG, 575XP, 576XP, 576XP AutoTune, 576XPAutoTune, T535i XP, T535iXP, T536Li XP, T536LiXP |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 136 | 236 | 135 | 120 MARK II | 120E MARK II | 135E | 136LE | 137E | 140E | 141 | 141LE | 142 | 142E | 230 | 235 | 235E | 236E | 240 | 240E | 240E TRIOBRAKE | 333 | 334T | 335XPT | 336 | 338XPT | 339XP | 340E | 345E | 346XP | 353 | 357XP | 359 | 36 | 362 | 365 | 365H | 365X-TORQ | 372XP | 372XP X-TORQ | 41 | 435 | 435E | 435EII | 435II | 436LI | 440E | 440EII | 440II | 445 | 445E | 445EII | 445II | 450 | 450EII | 455E | 455E RANCHER II | 455E RANCHER II TRIOBRAKE | 455E TRIOBRAKE | 455 RANCHER | 455 RANCHER II | 460 | 461 | 465 RANCHER II | 536LIXP | 545 | 550XP, 550XPG | 555 | 556 | 560XP, 560XPG | 562XP, 562XPG | 565 | 570 | 570II | 572XP, 572XPG | 576XP | 23R | 26R | 21 LCN | 23 L | 23 LC | 23 LCN | 26 L | 26 LC | 535i XP | T535i XP | 550XP Mark II | 435i | 330i | 436Li | 536Li XP | T536Li XP | 545 Mark II | 545G Mark II | 550XPG Mark II | 550XPG Mark II Triobrake | 550XP Mark II Triobrake | 560XPG Mark II | 560XP Mark II | 562XPG Mark II | 562XP Mark II | 576XP AutoTune |
