Description
Overview:
This genuine Husqvarna knob (OEM No. 537 21 32-09) is a small but important replacement part used for tool-free adjustment points on compatible Husqvarna machines. Moulded from tough, impact‐resistant polymer with a textured grip, it allows secure hand tightening and precise setting of components such as clamps or covers, helping keep your equipment correctly adjusted during use. Designed for Husqvarna brushcutters and related tools, it is a direct fit on models including the 135R and 336FR, among many others listed below. Replacing a worn, cracked, or missing knob restores safe, reliable operation and prevents looseness caused by vibration. Finished in black for an unobtrusive, factory look, this Genuine Part offers the same fit, function, and durability as the original component supplied with your machine.
Key Features:
- Genuine Husqvarna replacement for assured compatibility and performance
- Direct replacement for OEM No. 537 21 32-09
- Hardwearing polymer resists impact, vibration, oils, and fuels
- Textured grip for confident hand tightening, even with gloves
- Helps maintain correct adjustment of guards, handles, or covers
- Quick, tool‐free installation; matches original hardware location
- Stable in outdoor conditions and temperature changes
- Supports reliable operation and reduces unplanned downtime
Typical Applications:
Used wherever a hand‐tightened knob is specified on compatible Husqvarna equipment. Typical uses include securing adjustable components and access covers on brushcutters, trimmers, and other handheld tools. Ideal for replacing damaged or missing knobs to restore safe, repeatable adjustments during routine operation, maintenance, and cleaning in gardens, landscaping, estates, and professional grounds care.
Also known as:
Control knob, hand knob, thumb knob, clamping knob, hand‐tightening knob, adjustment screw knob, star‐style knob. These terms describe the same style of manual fastener used for quick, tool‐free adjustments on outdoor power equipment.
Fits Models:
122 C, 122 HD45, 122 HD60, 122 LD, 122 LDx, 122 LK, 122 R, 122 RJ, 122C, 122HD45, 122HD60, 122LD, 122LDx, 122LK, 122R, 122RJ, 129 C, 129 L, 129 LDX, 129 LK, 129 R, 129 RJ, 129C, 129L, 129LDX, 129LK, 129R, 129RJ, 135 R, 135R, 322HD60, 325 L, 325L, 325R, 336 FR, 336FR, 336FRD, 336RK, 570, 570 AutoTune, 570 EPA, 570 II, 570AutoTune, 570EPA, 570II, 576 XP AUTO TUNE, 576 XP EPA, 576 XPG AUTO TUNE, 576XP AutoTune, 576XPAutoTune, 576XPEPA, 576XPGAUTOTUNE
Alternate Part Numbers:
537 21 32-09, 537213209
Product Specifications
| L&S Part No. | 537 21 32 09 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 537213209 |
| Unit of Sale | 1 |
| Applications | 122 C, 122 HD45, 122 HD60, 122 LD, 122 LDx, 122 LK, 122 R, 122 RJ, 122C, 122HD45, 122HD60, 122LD, 122LDx, 122LK, 122R, 122RJ, 129 C, 129 L, 129 LDX, 129 LK, 129 R, 129 RJ, 129C, 129L, 129LDX, 129LK, 129R, 129RJ, 135 R, 135R, 322HD60, 325 L, 325L, 325R, 336 FR, 336FR, 336FRD, 336RK, 570, 570 AutoTune, 570 EPA, 570 II, 570AutoTune, 570EPA, 570II, 576 XP AUTO TUNE, 576 XP EPA, 576 XPG AUTO TUNE, 576XP AutoTune, 576XPAutoTune, 576XPEPA, 576XPGAUTOTUNE |
| Machine Type | Brushcutters |
| Fits Brands | Husqvarna |
| Fits Models | 122HD45 | 122HD60 | 570 | 570II | 129R | 129RJ | 135R | 325R | 336FR | 336FRD, 336RK | 122 C | 122 LD | 122 LDx | 122 LK | 129 C | 129 L | 129 LK | 325 L | 576XP AutoTune | 122R | 122RJ |
