Easy
Less than 15 minutes
This item has been sourced from the original manufacturer to be used with curved shaft trimmers. The lower drive shaft is a complete part that is sold pre-assembled. The drive shaft is used to link the cutting head and the upper shaft. This part includes the housing and the internal drive shaft. The lower drive shaft housing is priced as a single item.
Boom Asm Lwr W/shf 753-06805
OEM part for: Troy-Bilt, Yard Machines
Part Number: 753-06805
$25.47
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 5 machines
Troy-Bilt
TB525EC (41ADZ52C766) Curve Shaft Gas String Trimmer View Diagrams & Manuals
TB525EC (41ADZ52C966) Curve Shaft Gas String Trimmer View Diagrams & Manuals
Yard Machines
Y4700EC Trimmer View Diagrams & Manuals
Y4700EC (41AD470C900) Trimmer View Diagrams & Manuals
Y 4700 EC (41AD470C800) String Trimmer View Diagrams & Manuals
This item works with the following types of products:
- Trimmer Parts
Customer Part Reviews ?
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Easy to find the part and came in a reasonable amount of time
It was the correct part and I was back up and trimming my lawn again.
Thank you !!!
Guest -
April 19, 2021
Verified Purchase
Part arrived on time. Easy pick up.
Part didn't come with instructions.
Guest -
February 5, 2020
Verified Purchase
Weedeater
Working good as new. Thanks
Guest -
June 7, 2019
Verified Purchase
Received the wrong part.
Since I got the wrong part I haven't been able to fix my line trimmer yet. I used the right part number for my trimmer but it must have been redesigned. So I had to either return it or buy a new matching head, which I didn't need. But I bought the new head as it was the easiest way to solve the problem. This cost me more money. The person I spoke to to do this was very friendly and helpful. I have no problem with that. As of this date still haven't received the new part. So still don't know if this will all work out.
Guest -
July 4, 2019
Verified Purchase
eReplacementParts Team
Hi Fred,
Thank you for your review. Please accept our apologies that you have not yet received your part. We have contacted you privately regarding this situation.
Good Quality item.
Good item but was not the one that goes on my model number.
Guest -
June 3, 2019
Verified Purchase
just about the right item
The item was of the right size with just a small problem, had a screw tip instead of a square tip, so with a small amount of adjudgment was able to make it work great.
Donald -
May 17, 2019
Verified Purchase
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t days ago
Verified Purchase
eReplacementParts Team
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Questions & Answers ?
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Does this fit my product?Questions & Answers for Boom Asm Lwr W/shf
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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.
Broken drive cable
Daniel - February 11, 2017
👍 9 of 10 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Adjustable Wrench
Parts Used
Removed trimmer head and replace it on to the new part.
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Lower shaft on Troy-Built Weedeater broke and had to replace.
John - May 28, 2019
👍 2 of 2 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Wrench Set
Parts Used
Removed old shaft, string head assembly and guard. Mounted all items on new shaft and done.
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Shaft snapped on the inside
Nathan - October 1, 2018
👍 2 of 2 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, No tools required
Parts Used
Loosened the wing nut pressed quick release button and then reversed the order and put the new one on.
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Bad bearing.
Dana - July 2, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers
Installed the new curved shaft.
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the threaded end which connects to the trimmer head does not have a hex head flange used to hold backup when tightening. The original unit had a hex head to make to easy to disassemble.
John - September 5, 2020
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, grinder
Parts Used
1. the trimmer lower end is snapped in place with a small button & a knob to tighten the shaft.
2. once the head is slid in place & tightened by hand, the cutter head to installed. The only problem is the aftermaket part has a round flange instead of a hex flange. I used the grinder to make two flat sides on the washer so I could hold backup when tightening.
2. once the head is slid in place & tightened by hand, the cutter head to installed. The only problem is the aftermaket part has a round flange instead of a hex flange. I used the grinder to make two flat sides on the washer so I could hold backup when tightening.
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
