Jump to:
This is a genuine Craftsman part for use with Trimmers. The line tap knob releases the cutting line when you bump the knob on the ground while the spool is turning. The most common reason for replacing the bump knob is when bumping the knob against the ground no longer causes the spool to release more line. This part is sold individually. The tool that you will need to replace the line tap knob is a flat-head screwdriver.
Our customer Service team is at the ready daily to answer your part and product questions.
We're sorry, but our Q&A experts are temporarily unavailable.
Please check back later if you still haven't found the answer you need.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Hello Mary, Thank you for your inquiry. The housing holds the internal components of the cutting head. The bump feed knob releases the cutting line when you bump the knob on the ground. We hope this helps and if you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Weed trimmer bump knob head had worn through
Bob from Phoenix, Arizona
Knob was wore out!!
Billy from Weatherford, Texas
Missing knob.
Ruben from ARECIBO, Puerto Rico
Bump knob was just worn down from use
Jim from North Canton, Ohio
Knob wore out
Jon from Roy , Utah
Weed Trimmer Knob wore out from prolong use.
Mark from Spring Hill, Tennessee
Trimmer line will not feed
Billy from Weatherford, Texas
Replaced Grass trimmer release knob
Gary from York, Pennsylvania
The bump knob wore a hole in it would not advance line.
Doug from Pea Ridge, Arkansas
Cover and knob wore through from heavy use in rocky areas
Martin from Livermore, Colorado
| Brand | Model Number | Description |
|---|---|---|
| Husqvarna | 128CD | Trimmer - 128 Cd (545192186) (2009-01) |
| Craftsman | 358791050 | Trimmer - Trimmer |
| Craftsman | 358791051 | Trimmer - Trimmer |
| Craftsman | 358791590 | Trimmer - Trimmer |
| Craftsman | 358791800 | Trimmer - Trimmer |
| Craftsman | 358791801 | Trimmer - Trimmer |
| Craftsman | 358795810 | Trimmer - Trimmer |
| Craftsman | 358795811 | Trimmer - Trimmer |
| Husqvarna | 545192149 | Trimmer - Husqvarna String Trimmer Model 545192149 Parts |
| Husqvarna | 545192186 | Trimmer - Husqvarna String Trimmer Model 545192186/2009-01 (545192186/200901, 545192186/2009 01) Parts |
| Husqvarna | BC233 | Brush Cutter - B Brushcutter |
| American Yard Products | BC233B | Trimmer - String Trimmer |
| Husqvarna | BC433 | Brush Cutter - B Brushcutter |
| American Yard Products | BC433B | Trimmer - String Trimmer |
| Weed Eater | FEATHERLITE SST PLUS | Trimmer - Trimmer |
| Poulan | MC025 | Trimmer - Poulan String Trimmer Model MC025 Parts |
| Weed Eater | MX557 | Trimmer - Gas Trimmer |
| Poulan | P4500 | Trimmer - Gas Trimmer |
| Poulan | PP025 | Trimmer - Pro Gas Trimmer |
| Poulan | PP030 | Trimmer - Trimmers And Edgers |
| Husqvarna | PP033 | Trimmer - Handheld Trimmer |
| Poulan | PP125 | Trimmer - Pro Gas Trimmer |
| Poulan | PP125E | Trimmer - Trimmer |
| Poulan | PP136E | Trimmer - Pro Gas Trimmer |
| Poulan | PP25 | Trimmer - String Trimmer |
| Poulan | PP25E | Trimmer - Gas Trimmer |
| Poulan | PP26E | Trimmer - Gas Trimmer |
| Poulan | PP30 | Trimmer - String Trimmer |
| Poulan | PP330 | Trimmer - Pro Gas Trimmer |
| Poulan | PP338PT | Trimmer - Gas Trimmer |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
