Lifetime Warranty
[Lifetime Warranty] 537338701 Trimmer Head Bump Knob - Pack of 2
Save 9%
0.00
Regular price
$12.28
Regular price
$13.51
Sale price
$12.28
Fast delivery
CONFIRM THE FIT FOR YOUR MODEL
Enter your model number
537338701 Trimmer Head Bump Knob - Pack of 2
Key Features
- Direct replacement bump knob for string trimmer heads.
- Activates the line-feeding mechanism when tapped on the ground.
- Constructed from durable, high-impact plastic for extended wear life.
- Enables quick and simple replacement of a worn or broken part.
Replaces / Cross-Reference Part Numbers
- OEM Part Number: 537338701
Compatibility & Fitment
- Trimmer Head Models: Fits Husqvarna T-25 and T25 heads.
- Compatible Brands: Husqvarna, Jonsered, RedMax.
-
Select Husqvarna Trimmer Models:
- 122C, 124C, 124L, 125L, 125LDx
- 128L, 128LD, 128LDx, 128R, 128RJ
- 223L, 223R
When to Replace
- Existing knob is cracked, broken, or worn through from ground contact.
- Trimmer line fails to advance when the head is tapped.
- The knob is loose or will not stay attached to the trimmer head spool.
Installation Tips
- Disconnect the spark plug wire before performing any maintenance.
- Disassemble the trimmer head to access and remove the spool.
- Unscrew the old bump knob from the spool assembly. Note: Threads may be left-handed (reverse).
- Clean any dirt or debris from the spool threads.
- Firmly screw the new knob into place. Do not overtighten.
- Reassemble the spool and trimmer head housing.
Material
Plastic
Brand
BlueStars
Color
Blue
Product Dimensions
1"L x 1"W
Exterior Finish
Plastic
Special Feature
Durable, Easy to Install
Included Components
537338701 Trimmer Head Bump Knob
Item Weight
1.6 ounces
Handle Material
Resin
Customer Package Type
Flat Free Package (FFP)
Unit Count
2 Count
Number of Items
2
Manufacturer
BlueStars
Handle Attachment Mechanism
Screw-on