Description
Overview:
This genuine Husqvarna ignition switch is a direct replacement for the start/stop control on a wide range of Husqvarna handheld machines, including brushcutters, trimmers and pole pruners. It ensures reliable engine on/off control and consistent starting performance. Built with hard-wearing materials suited to outdoor use, it withstands vibration, moisture and regular handling. Ideal for restoring correct function where the original switch has failed or become intermittent, it helps protect the ignition system and improves day-to-day usability. Compatible with popular models such as the 124R and 128R, it is supplied to the original specification for fit and function. Genuine Part, MPN 537 41 90-01 (also referenced as 537419001).
Key Features:
- Genuine Husqvarna part for precise fit and dependable performance
- Restores positive start/stop control to prevent hard starting and random cut-outs
- Robust construction for regular professional and domestic use in outdoor conditions
- Designed to handle engine vibration and frequent switching cycles
- Compatible with a broad range of Husqvarna brushcutters, trimmers, pole pruners and hedge trimmers
- Simple like-for-like replacement to minimise downtime and setup effort
- Helps protect ignition circuitry by ensuring clean, reliable switching
- Supplied to OEM specification to match original wiring and mounting points
Typical Applications:
Replacement of a worn, damaged or intermittent ignition switch on Husqvarna brushcutters, clearing saws, line trimmers, pole pruners, hedge trimmers and selected blowers. Suitable for routine refurbishment, fault rectification after accidental damage, or preventative maintenance to keep machines starting and stopping reliably on site or in the garden.
Also known as:
Stop switch, kill switch, on/off switch, engine stop, ignition cut-off switch, power switch, emergency stop switch for handheld petrol machines.
Fits Models:
122HD45, 122HD60, 122R, 124R, 125R, 128R, 129R, 135R, 223 L, 223 R, 223L, 223R, 241R, 241RJ, 323 C, 323 L, 323 LD, 323C, 323HD60, 323HE3, 323L, 323LD, 323P, 323R, 323RII, 325 LDx, 325 Lx, 325HD75 X-Series, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3, 325HE3 X-Series, 325HE4, 325HE4 X-Series, 325HS75 X-Series, 325HS99 X-Series, 325LDx, 325Lx, 325P, 325R, 325RDX, 325RJX, 325RX, 326 AI 25, 326 ES, 326 EX, 326 HD75 X-Series, 326 HDA55 X-Series, 326 L, 326 LDx, 326 LS, 326 Lx, 326AI25, 326ES, 326EX, 326HD60 X-Series, 326HD75 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326L, 326LDx, 326LS, 326Lx, 326P, 326RJX, 326RX, 327 ES, 327 LDx, 327 LS, 327 Lx, 327ES, 327HDA65 X-Series, 327HE3 X-Series, 327HE4 X-Series, 327LDx, 327LS, 327Lx, 327P, 327P4, 327P5x, 327PT5S, 327RJX, 327RX, 333R, 333RJ, 335 LS, 335 LX, 335FR, 335LS, 335LX, 335RJX, 335RX, 336FR, 336FRD, 336RK, 343F, 343FR, 343FRM, 343R, 345FR, 345FX, 345FXT, 345R, 345RX, 355FRM, 355FX, 355FXT, 355RX, 524 L, 524L, 525 LS Mark II, 525 LST Mark II, 525BX, 525HE3, 525HE4, 525HF3S, 525L, 525LK, 525LS, 525LS Mark II, 525LST, 525LST Mark II, 525P4S, 525P5S, 525PT5S, 525RJD, 525RJX, 525RK, 525RS, 525RX, 525RX Mark II, 525RXT, 525RXT Mark II, 525RXTMarkII, 535 LK, 535FBX, 535LK, 535LS, 535RJ, 535RX, 535RXT, 545F, 545FR, 545FX, 545FXAT, 545FXT, 545FXTAT, 545RX, 545RXT, 545RXTAT, 555FRM, 555FX, 555FXT, 555RXT, Saw Attachment
Alternate Part Numbers:
537 41 90-01, 537419001
Product Specifications
| L&S Part No. | 537 41 90 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 537419001 |
| Unit of Sale | 1 |
| Applications | 122HD45, 122HD60, 122R, 124R, 125R, 128R, 129R, 135R, 223 L, 223 R, 223L, 223R, 241R, 241RJ, 323 C, 323 L, 323 LD, 323C, 323HD60, 323HE3, 323L, 323LD, 323P, 323R, 323RII, 325 LDx, 325 Lx, 325HD75 X-Series, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3, 325HE3 X-Series, 325HE4, 325HE4 X-Series, 325HS75 X-Series, 325HS99 X-Series, 325LDx, 325Lx, 325P, 325R, 325RDX, 325RJX, 325RX, 326 AI 25, 326 ES, 326 EX, 326 HD75 X-Series, 326 HDA55 X-Series, 326 L, 326 LDx, 326 LS, 326 Lx, 326AI25, 326ES, 326EX, 326HD60 X-Series, 326HD75 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326L, 326LDx, 326LS, 326Lx, 326P, 326RJX, 326RX, 327 ES, 327 LDx, 327 LS, 327 Lx, 327ES, 327HDA65 X-Series, 327HE3 X-Series, 327HE4 X-Series, 327LDx, 327LS, 327Lx, 327P, 327P4, 327P5x, 327PT5S, 327RJX, 327RX, 333R, 333RJ, 335 LS, 335 LX, 335FR, 335LS, 335LX, 335RJX, 335RX, 336FR, 336FRD, 336RK, 343F, 343FR, 343FRM, 343R, 345FR, 345FX, 345FXT, 345R, 345RX, 355FRM, 355FX, 355FXT, 355RX, 524 L, 524L, 525 LS Mark II, 525 LST Mark II, 525BX, 525HE3, 525HE4, 525HF3S, 525L, 525LK, 525LS, 525LS Mark II, 525LST, 525LST Mark II, 525P4S, 525P5S, 525PT5S, 525RJD, 525RJX, 525RK, 525RS, 525RX, 525RX Mark II, 525RXT, 525RXT Mark II, 525RXTMarkII, 535 LK, 535FBX, 535LK, 535LS, 535RJ, 535RX, 535RXT, 545F, 545FR, 545FX, 545FXAT, 545FXT, 545FXTAT, 545RX, 545RXT, 545RXTAT, 555FRM, 555FX, 555FXT, 555RXT, Saw Attachment |
| Machine Type | Brushcutters, Hedgetrimmers |
| Fits Brands | Husqvarna |
| Fits Models | 122HD45 | 122HD60 | 323HD60 | 323HE3 | 325HD75 X-SERIES | 325HDA55 X-SERIES | 325HDA65 X-SERIES | 325HE3 | 325HE3 X-SERIES | 325HE4 | 325HE4 X-SERIES | 325HS75 X-SERIES | 325HS99 X-SERIES | 326HD60 X-SERIES | 326 HD75 X-SERIES | 326 HDA55 X-SERIES | 326HE3 X-SERIES | 326HE4 X-SERIES | 327HDA65 X-SERIES | 327HE3 X-SERIES | 327HE4 X-SERIES | 525HF3S | 323P | 325P | 326P | 327PT5S | 327P | 525P4S | 525P5S | 525PT5S | Saw Attachment | 124R | 125R | 128R | 129R | 135R | 223 L | 223 R | 241R | 241RJ | 323R | 323RII | 325R | 325RDX | 325RJX | 325RX | 326RJX | 326RX | 327RJX | 327RX | 333R | 333RJ | 335FR | 335RJX | 335RX | 336FR | 336FRD, 336RK | 343F | 343FR | 343R | 345FR | 345FX | 345FXT | 345R | 345RX | 355FRM | 355FX | 355FXT | 355RX | 525BX | 525L | 525LK | 525LS | 525LST | 525RJD | 525RJX | 525RK | 525RS | 525RX | 525RXT | 535FBX | 535LS | 535RJ | 535RX | 535RXT | 545FR | 545FX | 545FXAT | 545RX | 545RXT | 545RXTAT | 555FRM | 555FX | 555FXT | 555RXT | 545FXT | 545FXTAT | 223 L | 323 C | 323 L | 323 LD | 325 LDx | 325 Lx | 326 ES | 326 EX | 326 L | 326 LDx | 326 LS | 326 Lx | 327 ES | 327 LDx | 327 LS | 327 Lx | 335 LS | 335 LX | 524 L | 535 LK | 326 AI 25 | 525HE3 | 525HE4 | 327P4 | 327P5x | 525 LS Mark II | 525 LST Mark II | 525RX Mark II | 525RXT Mark II | 545F | 343FRM | 122R |
