Easy
15-30 minutes
It is a genuine manufacturer approved replacement part is designed for use with Toro walk-behind lawn mowers. This blade support works as an adapter helping to secure the mower blade. It is made from durable metal and it is sold individually.
Support-blade 108-3766-03
OEM part for: Toro, Lawn Boy
Part Number: 108-3766-03
$11.20
In Stock
Order within the next 7 hours and your part ships today! 
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Frequently Purchased Together ?
Compatibility
This Support-blade will fit the following 671 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Toro
20339 (407820000-999999999) 20339, 22in Recycler Lawn Mower With Smartstow, (Sn 407820000-999999999)
20340 (400000000-401499999) 20340, 22in Recycler Lawn Mower With Smartstow, (Sn 400000000-401499999)
20355 (405600000-405999999) 20355, 22in Recycler Lawn Mower With Smartstow, (Sn 405600000-405999999)
21329 (404320000-406601999) 21329, 22in Recycler Lawn Mower With Smartstow, (Sn 404320000-406601999)
21465 (400000000-408999999) 21465, 22in Recycler Lawn Mower With Smartstow, (Sn 400000000-408999999)
21773 (400000000-999999999) 21773, 55cm Recycler Lawn Mower With Smartstow, (Sn 400000000-999999999)
21774 (400000000-999999999) 21774, 55cm Recycler Lawn Mower With Smartstow, (Sn 400000000-999999999)
Lawn Boy
Show More Compatible ModelsThis item works with the following types of products:
- Lawn Mower Parts
This part replaces obsolete part #: 108-3766, 105-3029-03
Customer Part Reviews ?
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ReplacementParts.com outstanding parts inventory is amazing. They have what you need!
This and other parts needed for my lawnmower fit the first time. Never have I had to returns incorrect parts.
Guest -
June 4, 2021
Verified Purchase
Front blade guard
Perfect fit. No problems encountered
Armpy -
June 4, 2021
Verified Purchase
Genuine oEM parts !
Arrived expeditiously!
Guest -
April 20, 2021
Verified Purchase
Great parts, everything arrived quickly and was able to make the repairs easily
Parts fit perfectly!!
Guest -
April 19, 2021
Verified Purchase
This part fit perfectly.
The part is very well built and very strong.
Guest -
October 13, 2020
Verified Purchase
Worked great
Exact part
Guest -
June 24, 2019
Verified Purchase
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Support-blade
i need the bolt and other bracket parts ,do you have them or the part numbersw
brad
for model number 20379
asked on 2022-03-16
Hello Brad, Thank you for your inquiry. We have researched the model number you have provided and show the blade bolt as part# 125-2466, the blade retainer as part# 130-6674, and the pulley as part# 130-6684. We hope this helps and if you need help placing an order, 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 March 16, 2022
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.
Lawn mower missing blade support and bolt
Donald - June 13, 2018
👍 2 of 2 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
Used blade support and bolt to attach blade to mower
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Thanks for voting and helping fellow customers!
lawn mower blade was dull & air filter dirty
Susan - April 14, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Adjustable Wrench
Followed instruction in the manual. Yes I kept the manual. I'm a woman.
The nut holding the blade was very tight; and yes I used the block of wood to secure the blade. After several attempts, it finally budged. I was surprised. I had a backup plan if I could not do this myself. Not sure if I'd attempt anything more complicated, but this I successfully tackled. Thanks for making it easy to get the parts for this 2008 mower.
The nut holding the blade was very tight; and yes I used the block of wood to secure the blade. After several attempts, it finally budged. I was surprised. I had a backup plan if I could not do this myself. Not sure if I'd attempt anything more complicated, but this I successfully tackled. Thanks for making it easy to get the parts for this 2008 mower.
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support-blade was bent from me last year puting it on backwards
HENRY - March 24, 2020
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set, 5/8 wrench
Parts Used
took blade off and put new support-blade on
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Tune up
David - December 5, 2016
Tool Type
Lawn Mower
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set
Remove head, scrape off carbon from combustion chamber, replace head using a new gasket, replace spark plug. Starts and runs like new!
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Blade needed to be replaced
Robert - June 23, 2016
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench
The blade support was bent a little so I replaced that too.
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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.
