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Bump Knob 791-153066B

Part Number: 791-153066B
MTDRyobiTroy-BiltYard ManBolensYard MachinesCraftsmanCub Cadet
Availability: In Stock
Price: $13.37
Ships within 1 business day

*This part replaces obsolete part #: 791-153066.

Product Information
Description:
This line trimmer bump feed knob is an authentic OEM part from Craftsman for trimmers and weedwackers. This part lets go of the cutting line when you bump the line trimmer bump feed knob on the ground while the spool is spinning. There are no tools you need to replace this part. This line trimmer bump feed knob is made of plastic and is sold individually.
Frequently Purchased With
Compatibility

This part is compatible with the following machines:

Ryobi
Troy-Bilt
Yard Man
Bolens
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Trimmer
Repair Guides
Watch the Repair Video for Bump Knob
Articles:
Step-by-step instructions for removing and installing the bump knob on your Bolens string trimmer....
June 25, 2018

Questions & Answers for Bump Knob


I need a bump feed knob for my trimmer. I ordered one from another company and received an Oregon brand part # 55-803 and it didn't fit. The bolt on my knob is 3/8" across, including the threads. The threaded part of the shaft is 1/2" with left hand threads. The head of the bolt is square. The plastic knob is around 2" across with 4 spots that are slightly raised. Is this the correct part for my Troy-Bilt string trimmer? Thanks
David for model number TB80 EC asked on 2022-08-29
Hello David, Thank you for your inquiry. We have researched the model number that you have provided and confirm that this part will fit your model. We hope this helps and if you need help placing an order for a part, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team August 29, 2022
Will this bump knob and outer trim head fit the TB22-EC trimmer?
Dale for model number TB22-EC asked on 2022-06-29
Hi Dale, Thank you for your question. Yes, this would be the correct part for your trimmer. If you need help placing an order for it, customer service is open 7 days a week and anyone will be happy to assist you. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team June 29, 2022
Repair Instructions: Submitted by Customers Like You
25 of 33 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Lost the bump head knob
Got the replacement and screwed it on. Perfect fit.
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9 of 11 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, My fingers
The Bump Head Knob Assembly would not come off so I had to hack saw it off.
I had to order the spool assembly and the bump head know assembly. Since I had to cut the bolt off I had to replace the spool assembly which fastens onto the neck of the trimmer. Everything went together smoothly. I didn't have to use any tools to replace the Bump Head Assembly but the shaft assembly with the spool; I used a wrench and philips screwdriver to put it together.
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6 of 8 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Retainer - 791-610660
Spring - 791-610317B
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Wrench Set
Broken bump head
Followed manufacturers diagram, replaced broken parts and tested the trimmer.
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3 of 3 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, A little grease
Bump feed knob for line trimmer
Just screwed it on by hand ....Done, exact replacement
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Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, my hands
bumper broke
hand screw thanks you
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Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, My hand
The OEM bump knob just wore itself out after 13 years
Just replaced the old bump knob with the new one. Uber simple.😁
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Tool Type:
Trimmer
Parts Used:
Air Cleaner Filter - 753-06417
Reel:otr W/ret - 753-04284
Spring - 791-610317B
Reel-inner Spool - 753-1155
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Wrench Set
Worn out. It is 6 years old
Took it apart and replaced the parts. Very simple..
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Tool Type:
Trimmer
Parts Used:
Reel:otr W/ret - 753-04284
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Housing stripped out
removed the remaining clip and removed old housing, replaced and used a socket to install new remaining clip.
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Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Pliers
Bump Knob would not advance trimmer line
Held down trimmer line and had to use pliers to loosen old bump knob. Unscrewed old bump knob then screwed on new knob and hand tightened.
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Tool Type:
Trimmer
Parts Used:
Bump Knob - 791-153066B
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, Slip-joint pliers
The original knob had broken and would not allow advancement of the trimming string.
I needed to use pliers to remove the old knob.
The new knob screwed on very easily and the trimmer works like the day I bought it.
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Reviews
4.8
Average Rating (out of 5):
61 Reviews
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  • Easy repair
    Just what I needed, my weedeater is working great
    steve - October 16, 2023 Verified Purchase
    Correct part
    Exactly what I ordered and delivered as promised. Unfortunately, postal worker delivered to wrong address
    Robert - September 9, 2023 Verified Purchase
    Fastest Shipping Ever
    The part is brand new, packed well, and really had the fastest shipping EVER!! Thanks for that!.
    Guest - July 29, 2023 Verified Purchase
    Easy Parts Replacement
    As always you had the part..Super fast shipping and then sent video follow up on installation..Thanks
    Guest - July 26, 2023 Verified Purchase
    Couldn't find...
    Looked all over for part, couldn't find it was about buy new weed wacker. Then i found eReplacementParts they had exactly what i needed .
    Guest - July 18, 2023 Verified Purchase
    Worked as expected
    Good condition nice fit your company is nice to work with
    Guest - July 13, 2023 Verified Purchase
    Good part
    The part is easy to remplace.
    iGlobal - June 27, 2023 Verified Purchase
    If you need parts you can"t find elsewhere:
    only place I can find replacement parts for my equipment, great
    Antonio - June 6, 2023 Verified Purchase
    Perfect fit
    This arrived quickly and was a perfect replacement for the factory knob that I lost.
    Philip - May 30, 2023 Verified Purchase
    the parts I ordered have resolved my trimmer issues
    quality parts & arrived quickly.
    Guest - May 18, 2023 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Repair Guides
    Watch the Repair Video for Bump Knob
    Articles:
    Step-by-step instructions for removing and installing the bump knob on your Bolens string trimmer....
    June 25, 2018
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