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9135849-1-M-MTD-791-181166-Lower Flexible Drive Shaft
Part Location Diagram of 791-181166 MTD Lower Flexible Drive Shaft
See part A23 in the diagram
( Grid squares measure 1x1 inch )
9135849-1-S-MTD-791-181166-Lower Flexible Drive Shaft Part Location Diagram of 791-181166 MTD Lower Flexible Drive Shaft

Lower Flexible Drive Shaft 791-181166

Manufactured by:
MTD
ERP Number:
ERP9135849
Part Number:
791-181166
Original Equipment Manufacturer ?
$39.55
★★★★★
★★★★★
3 Reviews
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(3 rated repairs) ?

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Description Troubleshooting Reviews Questions & Answers Repair Instructions Model Cross Reference

Product Description

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This authentic item is supplied directly from the original equipment manufacturer for use with handheld trimmers. The flexible drive shaft is secured in the lower boom assembly in order to rotate the trimmer head. It provides an identical replacement for a missing or a faulty part that was installed on a new unit. Please make sure to check the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality shaft is made of durable metal and is sold individually.

Troubleshooting

This part works with the following brands:
  • MTD
  • Troy-Bilt
  • Ryobi
  • Cub Cadet
  • Yard Man
  • Craftsman
  • Bolens
This part works with the following products:
  • Trimmer
  • Pole Saw
Part# 791-181166 replaces these:
791-181166,
★

Customer Part Reviews

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4.7
Average Rating (out of 5):
★★★★★
★★★★★
(3 Reviews)
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  • 5 stars
    2
  • 4 stars
    1
  • 3 stars
    0
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  • 1
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Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
easy install as expected
replacement part works extremely well and visually looks more robust than the OEM component that failed after several years of residential service
Guest - August 22, 2020
Verified Purchase
★★★★★
★★★★★
PERFECT
Exact OEM part, got my trimmer back in action, best price I found for this part, quick super quick delivery. My Ryobi is good again for a bunch more years...E replacement parts ALWAYS comes through, with the parts ya need to keep stuff working...
Carl - May 9, 2023
Verified Purchase
★★★★★
★★★★★
Looked fine
Not what I needed, it was the upper that was broken.
Bruce - August 22, 2022
Verified Purchase

Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

15 - 30 mins 

(3 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

Cable broke

Jeffery from Hillsboro, Oregon

11 of 11 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Parts Used:
791-181166
1. Remove lower portion of shaft tube at mid shaft quik-link and remove screw that secures opposite end of tube to the string head assembly. Flexible drive cable is inside tube, remove broken cable.
2. Remove torx screws from head assembly housing and split housing to access drive gears.
3. Remove broken end of flexible drive cable and clean out hub and gears. There will be broken bits that must be cleaned out.
4. Re-lube gears and ends of flexible drive shaft.
5. Re-set gears in housing, assemble housing, slide flexible drive cable end into top gear, slide cable into shaft tube, and attach tube to housing.
6. Attach lower unit to upper unit at quik- link, insuring flexible drive cable is inserted into collet.
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Trimmer lower flexible shaft

John from Brownsburg, Indiana

6 of 6 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Parts Used:
791-181166
Replaced lower flexible shaft.
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Lower flex shaft broke after many years of use

Brian from Moreno Valley, California

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers, Socket set, Wrench set
Parts Used:
791-181166
I read on ereplacementparts what others did first
Removed trimmer guard
Removed gearbox at trimmer head (3 screws) and clamp
Removed 2 screws on the lower shaft
Cleaned all the old grease from the gears and bearings (inspect the gears, if chipped clean everything before reassembly)
Inserted new flex shaft fro m the bottom and reassembled in reverse order.
Nothing to it!
It took me a bit longer because I cleaned everything to insure bits of chipped gears were not present before reassembly.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP9135849
Manufacturer Part Number: 791-181166
Brand Model Number Description
Ryobi 135PR Pole Saw - Pruner
Craftsman 316792460 Trimmer - Pole Saw Attachment
Craftsman 316794460 Trimmer - Trimmer
MTD 41AC137C701 Trimmer - MTD String Trimmer Model 41AC137C701 Parts
MTD 41AC137C901 Trimmer - MTD String Trimmer Model 41AC137C901 Parts
MTD 41AD26SC401 Trimmer - MTD String Trimmer Model 41AD26SC401 Parts
MTD 41AD26SC701 Trimmer - MTD String Trimmer Model 41AD26SC701 Parts
MTD 41AD26SC901 Trimmer - MTD String Trimmer Model 41AD26SC901 Parts
MTD 41AD26SC965 Trimmer - MTD String Trimmer Model 41AD26SC965 Parts
Cub Cadet 41AD2S8C912 Trimmer - Cub Cadet String Trimmer Model 41AD2S8C912/2012 Parts
Cub Cadet 41AD4C6C912 Trimmer - Cub Cadet String Trimmer Model 41AD4C6C912/2010 Parts
MTD 41AD775A734 Trimmer - MTD String Trimmer Model 41AD775A734 Parts
MTD 41AD875A034 Trimmer - MTD String Trimmer Model 41AD875A034 Parts
Ryobi 41AD875A734 Trimmer - Ryobi String Trimmer Model 41AD875A734 Parts
Cub Cadet 41ADC47C712 Trimmer - Cub Cadet String Trimmer Model 41ADC47C712 Parts
MTD 41ADL05A734 Trimmer - MTD String Trimmer Model 41ADL05A734 Parts
Troy-Bilt 41ADT47C063 Trimmer - Troy-Bilt String Trimmer Model 41ADT47C063 Parts
Troy-Bilt 41ADT75C063 Trimmer - Troy-Bilt String Trimmer Model 41ADT75C063 Parts
Troy-Bilt 41ADT75C763 Trimmer - Troy-Bilt String Trimmer Model 41ADT75C763 Parts
MTD 41ADY75C401 Trimmer - MTD String Trimmer Model 41ADY75C401 Parts
MTD 41ADZ3CC799 Trimmer - Trimmer
MTD 41AJPS-C767 Pole Saw - MTD Pole Pruner Model 41AJPS-C767 (41AJPSC767, 41AJPS C767) Parts
MTD 41AJPS-C799 Pole Saw - MTD Pole Pruner Model 41AJPS-C799 (41AJPSC799, 41AJPS C799) Parts
MTD 41AJSS-A034 Trimmer - MTD String Trimmer Model 41AJSS-A034 (41AJSSA034, 41AJSS A034) Parts
MTD 41AJSS-A054 Trimmer - MTD String Trimmer Model 41AJSS-A054 (41AJSSA054, 41AJSS A054) Parts
MTD 41AJSS-B034 Trimmer - MTD String Trimmer Model 41AJSS-B034 (41AJSSB034, 41AJSS B034) Parts
MTD 41AJSS-B054 Trimmer - MTD String Trimmer Model 41AJSS-B054 (41AJSSB054, 41AJSS B054) Parts
MTD 41AJTP-A034 Pole Saw - MTD Pole Pruner Model 41AJTP-A034 (41AJTPA034, 41AJTP A034) Parts
MTD 41AJTP-A054 Pole Saw - MTD Pole Pruner Model 41AJTP-A054 (41AJTPA054, 41AJTP A054) Parts
MTD 41AJTP-B034 Pole Saw - MTD Pole Pruner Model 41AJTP-B034 (41AJTPB034, 41AJTP B034) Parts
Lower Flexible Drive Shaft
$ 39.55
In Stock
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Stock Status
✖
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