Description
Overview:
This Screw for Husqvarna brushcutters is a Genuine Husqvarna Part engineered for secure, long-lasting fastening across key assemblies. Made from durable steel with a protective finish, it is designed to withstand vibration and outdoor conditions typical of professional and domestic brushcutting work. It helps hold guards, housings, handle components and drivetrain covers in place so your machine operates safely and reliably. Identified by MPN 573 99 43-04 (573994304), it offers a precise fit for a wide range of Husqvarna models, including 525LK and 525LS. Suitable for routine servicing and specific repairs, this OEM screw restores correct clamping where hardware has loosened, worn or gone missing, helping you maintain performance and extend the service life of your equipment.
Key Features:
- Genuine Husqvarna part for assured compatibility and fit
- Steel construction for strength and durability in demanding use
- Protective finish to help resist wear in outdoor environments
- Holds fast under vibration to maintain safe, reliable operation
- Precision-made threads for consistent clamping and easy assembly
- Designed for straightforward fitting with standard hand tools
- Suitable for routine maintenance and targeted repairs
- Widely compatible across many Husqvarna brushcutter models, including 525LK, 525LS and 525LST
Typical Applications:
Used to secure components such as debris guards, handlebar clamps, engine or clutch covers, shaft tube brackets and gearbox housings on Husqvarna brushcutters. Ideal when replacing missing or damaged hardware, or when refreshing fasteners during scheduled servicing to keep machines operating smoothly, safely and within specification.
Also known as:
Machine screw, fixing screw, retaining screw, hardware fixing, OEM screw, threaded fastener, equipment screw, service screw, assembly screw, replacement screw, Husqvarna OEM fixing, clamp screw.
Fits Models:
135R, 235FR, 235R, 323RII, 326 LDx, 326 LS, 326 Lx, 326LDx, 326LS, 326Lx, 326RJX, 326RX, 327 LDx, 327 LS, 327 Lx, 327LDx, 327LS, 327Lx, 327RDX, 327RJX, 327RX, 333R, 333RJ, 335 LS, 335 LX, 335FR, 335LS, 335LX, 335RJX, 335RX, 336FR, 336FRD, 336RK, 343F, 343FR, 343R, 345FR, 345FX, 345FXT, 345RX, 355FRM, 355FX, 355FXT, 355RX, 524 L, 524L, 525L, 525LK, 525LS, 525LST, 525RJD, 525RJX, 525RK, 525RS, 525RX, 525RXT, 535 LK, 535LK, 535LS, 535RJ, 535RX, 535RXT, 545FR, 545RX, 545RXT, 545RXTAT, 555FRM, 555FX, 555FXT, 555RXT
Alternate Part Numbers:
573 99 43-04, 573994304
Product Specifications
| L&S Part No. | 573 99 43 04 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 573994304 |
| Unit of Sale | 1 |
| Applications | 135R, 235FR, 235R, 323RII, 326 LDx, 326 LS, 326 Lx, 326LDx, 326LS, 326Lx, 326RJX, 326RX, 327 LDx, 327 LS, 327 Lx, 327LDx, 327LS, 327Lx, 327RDX, 327RJX, 327RX, 333R, 333RJ, 335 LS, 335 LX, 335FR, 335LS, 335LX, 335RJX, 335RX, 336FR, 336FRD, 336RK, 343F, 343FR, 343R, 345FR, 345FX, 345FXT, 345RX, 355FRM, 355FX, 355FXT, 355RX, 524 L, 524L, 525L, 525LK, 525LS, 525LST, 525RJD, 525RJX, 525RK, 525RS, 525RX, 525RXT, 535 LK, 535LK, 535LS, 535RJ, 535RX, 535RXT, 545FR, 545RX, 545RXT, 545RXTAT, 555FRM, 555FX, 555FXT, 555RXT |
| Machine Type | Brushcutters |
| Fits Brands | Husqvarna |
| Fits Models | 135R | 235FR | 235R | 323RII | 326RJX | 326RX | 327RDX | 327RJX | 327RX | 333R | 333RJ | 335FR | 335RJX | 335RX | 336FR | 336FRD, 336RK | 343F | 343FR | 343R | 345FR | 345FX | 345FXT | 345RX | 355FRM | 355FX | 355FXT | 355RX | 525L | 525LK | 525LS | 525LST | 525RJD | 525RJX | 525RK | 525RS | 525RX | 525RXT | 535LS | 535RJ | 535RX | 535RXT | 545FR | 545RX | 545RXT | 545RXTAT | 555FRM | 555FX | 555FXT | 555RXT | 326 LDx | 326 LS | 326 Lx | 327 LDx | 327 LS | 327 Lx | 335 LS | 335 LX | 524 L | 535 LK |
