Part Location Diagram of 791-153066B MTD Bump Head Knob Assembly
See part B-16 in the diagram
( Grid squares measure 1x1 inch )
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Bump Head Knob Assembly 791-153066B

★★★★★
★★★★★
2 Reviews
$ 13.64
  In Stock
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PartSelect Number PS9306452
Manufacturer Part Number 791-153066B
Manufactured by MTD
Product Description

Bump Head Knob Assembly Specifications

This genuine bump head knob assembly, sometimes known simply as the bump head, is black and approximately 2 inches long. Sold individually, this plastic part releases the cutting line. Over time, this part may break due to wear, and you will know it is broken because it will completely stop functioning. A troubleshooting tip is to tap the part on theg round to see if the cutting line advances. This is an easy repair to make, and does not require any tools. You will need to look for the bump head attachment point on the bottom of the cutting head assembly.
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Troubleshooting
This part works with the following products:
Trimmer.
This part works with the following products:
MTD, Ryobi, Troy-Bilt, Yard Man.
Part# 791-153066B replaces these:
791-153066B
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Customer Reviews
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Questions and Answers

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Jose
August 30, 2017
Necesito reemplazar toda la cabeza (I need to replace the whole head)
For model number Bl110
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Hello Jose, thank you for contacting us. If you are wanting to replace the whole head, you will need to get the following parts, PS9456562 PS10014644 PS9119496 PS9306452 Good luck with the repair!

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Mike
August 6, 2021
Does this bump head fit my troy built serial number 1h285dg1121. Mine has a hex head nut at bottom that is inset in the bump head so it does not stick out.
For model number TB22EC
PartSelect logo
Hello Mike, Thank you for the question. The 1h285dg1121 is not coming up a valid or a serial number we have listed. Could you please verify the serial number you provided us with? If it is correct, I recommend contacting the manufacturer and seeing if they could provide you with a part number, and then you are always welcome to check back to see if we carry the part. We hope this helps.

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Victor
3 days ago
Bump feed doesn’t t work. Replace bump knob..my question…when I tried to manually feed line it does not work..let me explain.. I push in the spool and tried to rotate clockwise to feed line..once in a while it works, but not any more. In the past I could manually feed line. What’s stopping from manually pushing reel in and rotate?
For model number Tb80ec
PartSelect logo
Hello Victor, thank you for getting in touch. Based on the description that you have provided, we would recommend checking the inner spool reel, part number PS9119496, to fix the issue. We hope this solves your problem!

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Related Parts:
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Model Cross Reference
This part works with the following models:
PartSelect Number: PS9306452
Manufacturer Part Number: 791-153066B
Brand
Model Number
Description
Ryobi
110
Trimmer - Trimmer
Ryobi
120
Trimmer - Trimmer
Ryobi
120R
Trimmer - Trimmer
Ryobi
125R
Trimmer - Trimmer
Ryobi
130
Trimmer - Trimmer
Ryobi
130r
Trimmer - Handheld Trimmer
Ryobi
130REB
Trimmer - 120 Volt Electric Trimmer
Ryobi
135R
Trimmer - Trimmer
Ryobi
2075RC
Trimmer - 2-Cycle Gas Trimmer
Ryobi
264-1
Trimmer - Ryobi String Trimmer Model 264-1/SERIAL: 604062251-809003001 (2641/SERIAL:604062251809003001, 264 1/SERIAL: 604062251 809003001) Parts
Ryobi
264-2
Trimmer - Trimmer
Ryobi
264-3
Trimmer - Trimmer
Ryobi
265
Trimmer - Ryobi String Trimmer Model 265 Parts
Ryobi
265P
Trimmer - Ryobi String Trimmer Model 265P Parts
Ryobi
274
Trimmer - Trimmer
Ryobi
274-2
Trimmer - Trimmer
Ryobi
274-3
Trimmer - Trimmer
Ryobi
275-1
Trimmer - Trimmer
Ryobi
2800M
Trimmer - Trimmer
Yard Machines
2800MVP
Trimmer - Yard Machines String Trimmer Model 2800MVP Parts
Ryobi
2800R
Trimmer - Trimmer
Ryobi
284
Trimmer - Trimmer
Ryobi
284-2
Trimmer - Trimmer
Ryobi
284-3
Trimmer - Trimmer
Ryobi
285
Trimmer - Trimmer
Ryobi
285-1
Trimmer - Trimmer
Yard Machines
3100M
Trimmer - Yard Machines String Trimmer Model 3100M Parts
Craftsman
31679102
Trimmer - Craftsman String Trimmer Model 316.79102 (31679102, 316 79102) Parts
Craftsman
31679108
Trimmer - Craftsman String Trimmer Model 316.79108 (31679108, 316 79108) Parts
Craftsman
31679119
Trimmer - Craftsman String Trimmer Model 316.79119 (31679119, 316 79119) Parts
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