Medium
15-30 minutes
This is a genuine manufacturer sourced replacement part designed for use with handheld lawn and garden equipment. It is utilized to create an air-tight seal between the carburetor and the insulator. Over time seals tend to become brittle and compressed eventually requiring replacement. This part is made from durable composite material and it is sold individually.
Carburetor Gasket 791-181709
OEM part for: Ryobi, Troy-Bilt, Yard Man, MTD, Cub Cadet
Part Number: 791-181709
$4.99
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 101 machines
Ryobi
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Yard Man
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MTD
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Cub Cadet
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BC490 (41AD490C912) (2014) 41AD490C912 Gas String Trimmer View Diagrams & Manuals
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Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
- Blower Parts
Customer Part Reviews ?
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Gas tank for trimmer
Parts were true replacement, fit perfectly, short lead time. I will always use them again when needed.
Guest -
March 5, 2022
Verified Purchase
Great fit
Using your parts list, makes finding the item(s) you need, fast and easy.
Randal -
October 6, 2021
Verified Purchase
Quick turnaround
Ordered my parts just before a holiday weekend anticipating it to ship the following week. Was not expecting it for a few weeks. Instead I received it by the end of the same week I was expecting it to ship.
Guest -
June 15, 2021
Verified Purchase
Perfect
I order from ereplacementparts somewhat frequently as my hobby is fixing power equipment. I’ve yet to be unsatisfied. It’s been my experience that I’m buying the actual name brand replacement, like Walbro, as opposed to some knockoff, at a really reasonable price. Everything I’ve ordered has worked perfectly. I’ll continue ordering from them. Thanks
Guest -
June 6, 2019
Verified Purchase
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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.
Toro weed whip would not start
Russell - April 26, 2021
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Torx
1. Remove air filter with Torx
2. Remove 4 screws holding carb and air cleaner assy
3. Remove & replace fuel lines and filter.
4. Discard old carb and reinstall new with new gasket.
5. Test and replace air filter.
2. Remove 4 screws holding carb and air cleaner assy
3. Remove & replace fuel lines and filter.
4. Discard old carb and reinstall new with new gasket.
5. Test and replace air filter.
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Trimmer would not run.
Robert - March 25, 2021
Tool Type
Trimmer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers
Removed the cover and the air breather. Removed the old carburetor and replaced with the new one, along with the gaskets. Put all back together and it started after a few cranks and ran great.
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Would not stay running
Timothy - September 30, 2020
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver
Parts Used
Changed out the carburetor and gas tank and lines and gasket
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Broken fuel lines, gaskets torn on carburetor and cracked purge bulb
Pamela - May 29, 2020
Tool Type
Trimmer
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver
Removed carburetor and fuel tank. Installed new fuel tank and new carburetor using two new gaskets. Watched a ereplacement YouTube video regarding proper fuel line placement on the purge bulb and carburetor. Successful repair.
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wouldn't start
Robert - May 24, 2020
Tool Type
Trimmer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set
Replaced carburetor and air clear with cob valve
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Would not stay running,
charles - October 15, 2018
Tool Type
Trimmer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set
Parts Used
First I took it to a small engine repair shop they took the carburetor off try to fix it cook not. I got it back I do some work myself so I went to take the carburetor off myself and notice that the insulator was missing. Went back to repair shop to get it they told me that it didn't have one on it and they been working on small engine's for 20 years and never seen one before. I found one on your website and received it. I put it on my trimmer and now it runs fine. Thanks for all your help
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Bad carburator and gas tank.
Sandy - June 5, 2018
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver
I installed the new gas tank which had the tubes that go to the primer ball and carburetor. Then installed the new carburetor with the new gaskets. Put in new gas and it runs like a champ.
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Carburetor was leaking gas
Rich - July 13, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Took off the old carburetor, replaced all gaskets and carburetor. Runs good now and doesn't leak,
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Would not run faster than an idle.
Richard - June 17, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver
Replaced carburetor, fuel tank,fuel lines. I replaced the fuel tank because it came with fuel lines and filter pre installed and was about the same price as fuel lines and a filter would have cost.
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Trimmer would idle, die at full throttle.
Brent - May 31, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Torque tip Allen keys
1. Remove the air cleaner and the cover.
2. Remove 2 torque screws holding the carb and the spacer.
3. Remove the fuel lines to the carb.
4. Remove the throttle cable from the carb.
5. Install in reverse order, making sure the spacer is aligned correctly with the carb, i.e. small hole on one side of spacer faces the carb and aligns with gasket, and mounting screws are tight.
2. Remove 2 torque screws holding the carb and the spacer.
3. Remove the fuel lines to the carb.
4. Remove the throttle cable from the carb.
5. Install in reverse order, making sure the spacer is aligned correctly with the carb, i.e. small hole on one side of spacer faces the carb and aligns with gasket, and mounting screws are tight.
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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.
