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See part B23 in the diagram
( Grid squares measure 1x1 inch )

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Bump Head Knob Assembly

★★★★★
★★★★★
3 Reviews

Get this part fast! Average delivery time for in-stock parts via standard shipping: 1.8 days.

 Fits your 725R!
 Fits your 725R!
PartSelect Number PS10013974
Manufacturer Part Number 791-181468B
Manufactured by Ryobi
Product Description

Bump Head Knob Assembly Specifications

This OEM bump head knob assembly, known simply as the bump head assembly sometimes, advances the line on your trimmer in the spool. Black in color, it is made of plastic and steel and is sold individually. Tap your trimmer on the ground to see if the cutting line advances to determine if there is a problem with this part. If it will no longer feed, it is likely that this part needs to be replaced. Most of our customers rated this repair as easy. You can attach your new part to the cutting head with no special tools required to complete the repair.
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Troubleshooting
This part works with the following products:
Trimmer.
This part works with the following products:
Ryobi, MTD, Troy-Bilt, Yard Man.
Questions and Answers

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Customer Reviews
Average Rating:
★★★★★
★★★★★
3 Reviews
5.0
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      Model Cross Reference
      This part works with the following models:
      PartSelect Number: PS10013974
      Manufacturer Part Number: 791-181468B
      Brand
      Model Number
      Description
      Ryobi
      105R
      Trimmer - 120 Volt Electric Trimmer
      Ryobi
      132R
      Trimmer - 120 Volt Electric Trimmer
      Ryobi
      137R
      Trimmer - Trimmer
      Ryobi
      2075R
      Trimmer - 2-Cycle Gas Trimmer
      MTD
      41AD26SC900
      Trimmer - Handheld Trimmer
      MTD
      41AD725C900
      Trimmer - Handheld Trimmer
      MTD
      41AD725G900
      Trimmer - Handheld Trimmer
      MTD
      41BD26SC900
      Trimmer - Handheld Trimmer
      Ryobi
      705r
      Trimmer - Handheld Trimmer
      Ryobi
      725r
      Trimmer - Handheld Trimmer
      Ryobi
      725rE
      Trimmer - Handheld Trimmer
      Ryobi
      725REZ
      Trimmer - Gas Line Trimmer
      Ryobi
      767r
      Trimmer - Handheld Trimmer
      Ryobi
      767rJ
      Trimmer - Handheld Trimmer
      Ryobi
      775r
      Trimmer - Handheld Trimmer
      Ryobi
      825r
      Trimmer - Handheld Trimmer
      Ryobi
      825RA
      Trimmer - 4-Cycle Gas Trimmer
      Ryobi
      875r
      Trimmer - Handheld Trimmer
      Ryobi
      890r
      Trimmer - Handheld Trimmer
      Ryobi
      975R
      Trimmer - Trimmer
      Bolens
      BL26SS
      Trimmer - Gas String Trimmer
      MTD
      MP426CS
      Trimmer - Pro String Trimmer
      Ryobi
      RLH100DS
      Trimmer - Trimmer
      Ryobi
      SS725R
      Trimmer - Trimmer
      Troy-Bilt
      TB25CS
      Trimmer - Gas Trimmer
      Troy-Bilt
      TB25ET
      Trimmer - Gas Trimmer
      Troy-Bilt
      TB32CS
      Trimmer - Trimmer
      Troy-Bilt
      TB425CS
      Trimmer - Gas Trimmer
      Troy-Bilt
      TB475SS
      Trimmer - Gas Trimmer
      Troy-Bilt
      TB525CS
      Trimmer - Gas Trimmer

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      Open until 1am EST

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