Medium
1-2 hours
This is a genuine OEM sourced replacement part that is intended to be used with trimmers and pruners from Ryobi and Homelite. This gasket is used to seal the connection between the muffler and the exhaust port on the cylinder. The gasket is sold as an individual replacement part.
Muffler Gasket 900994006
OEM part for: Ryobi, Homelite
Part Number: 900994006
$4.99
Usually ships in 7 - 12 business days
Leaves our warehouse within 7 - 12 business days
Compatibility
This part will fit the following 109 machines
Ryobi
CS30 (RY30000) 30cc String Trimmer View Diagrams & Manuals
CS30 (RY30000A) 30cc String Trimmer View Diagrams & Manuals
RY30000B 30cc String Trimmer View Diagrams & Manuals
SS30 (RY30002) 30cc String Trimmer View Diagrams & Manuals
SS30 (RY30002A) 30cc String Trimmer View Diagrams & Manuals
RY30002B 30cc String Trimmer View Diagrams & Manuals
BC30 (RY30004) 30cc Brushcutter View Diagrams & Manuals
BC30 (RY30004A) 30cc Brushcutter View Diagrams & Manuals
RY30004B 30cc Brushcutter View Diagrams & Manuals
RY30004D 30cc Brushcutter View Diagrams & Manuals
RY30020 30cc Curved Shaft String Trimmer View Diagrams & Manuals
RY30020A 30cc String Trimmer View Diagrams & Manuals
RY30020B 30cc String Trimmer View Diagrams & Manuals
CS30 (RY30021A) 30cc String Trimmer View Diagrams & Manuals
RY30023 30cc Curved Shaft String Trimmer View Diagrams & Manuals
SS30 (RY30040) 30cc Straight Shaft String Trimmer View Diagrams & Manuals
RY30040A 30cc String Trimmer View Diagrams & Manuals
RY30040B 30cc String Trimmer View Diagrams & Manuals
SS30 (RY30041A) 30cc String Trimmer View Diagrams & Manuals
SS30 (RY30043) 30cc Straight Shaft String Trimmer View Diagrams & Manuals
RY30060A 30cc Brushcutter View Diagrams & Manuals
RY30060B 30cc Brushcutter View Diagrams & Manuals
BC30 (RY30061A) 30cc Brushcutter View Diagrams & Manuals
RY30063 30cc Brushcutter View Diagrams & Manuals
RY30120 30cc String Trimmer View Diagrams & Manuals
RY30140 30cc String Trimmer View Diagrams & Manuals
BC30 (RY30160) 30cc Brushcutter View Diagrams & Manuals
RY30220 30cc String Trimmer View Diagrams & Manuals
RY30220A 30cc String Trimmer View Diagrams & Manuals
RY30220B 30cc String Trimmer View Diagrams & Manuals
RY30240 30cc String Trimmer View Diagrams & Manuals
RY30240B 30cc String Trimmer View Diagrams & Manuals
RY30260 30cc Brushcutter View Diagrams & Manuals
RY30260B 30cc Brushcutter View Diagrams & Manuals
RY30524 30cc String Trimmer View Diagrams & Manuals
RY30544 30cc String Trimmer View Diagrams & Manuals
RY30564 30cc Brushcutter View Diagrams & Manuals
RY52001 Pruner / Trimmer View Diagrams & Manuals
RY52001A Pruner / Trimmer View Diagrams & Manuals
RY52002 Pruner / Trimmer View Diagrams & Manuals
RY52002A Pruner / Trimmer View Diagrams & Manuals
RY52003 Gas Pruner View Diagrams & Manuals
RY52003A Gas Pruner View Diagrams & Manuals
RY52004 30cc Gas Pruner View Diagrams & Manuals
RY52004A Gas Pruner View Diagrams & Manuals
RY52014 TP30 Gas Pruner View Diagrams & Manuals
RY52502 Gas Pruner View Diagrams & Manuals
RY52903 Gas Pruner View Diagrams & Manuals
RY30060 30cc Brushcutter View Diagrams & Manuals
RY30963 30cc String Trimmer View Diagrams & Manuals
RY30943 30cc String Trimmer View Diagrams & Manuals
RY30923 30cc String Trimmer View Diagrams & Manuals
RY30562 30cc String Trimmer View Diagrams & Manuals
RY30542 30cc String Trimmer View Diagrams & Manuals
RY30522 30cc String Trimmer View Diagrams & Manuals
RY30000 RY30000 30CC String Trimmer View Diagrams & Manuals
RY30000A RY30000A 30CC String Trimmer View Diagrams & Manuals
RY30002 RY30002 30CC String Trimmer View Diagrams & Manuals
RY30002A RY30002A 30CC String Trimmer View Diagrams & Manuals
RY30004 RY30004 30CC Brushcutter View Diagrams & Manuals
RY30004A RY30004A 30CC Brushcutter View Diagrams & Manuals
RY30021A RY30021A 30CC String Trimmer View Diagrams & Manuals
RY30041A RY30041A 30CC String Trimmer View Diagrams & Manuals
RY30061A RY30061A 30CC Brushcutter View Diagrams & Manuals
RY52502 (TP30) Gas Pruner View Diagrams & Manuals
RY52002A (PC30) Pruner/Trimmer View Diagrams & Manuals
RY52004 (TP30) 30cc Gas Pruner View Diagrams & Manuals
RY52903 (TP30) Gas Pruner View Diagrams & Manuals
RY52001A (PC30) Pruner/Trimmer View Diagrams & Manuals
RY52003A (TP30) Gas Pruner View Diagrams & Manuals
RY30160 30cc Brushcutter View Diagrams & Manuals
RY52001 (PC30) Pruner/Trimmer View Diagrams & Manuals
RY52003 (TP30) Gas Pruner View Diagrams & Manuals
RY52002 (PC30) Pruner/Trimmer View Diagrams & Manuals
RY52004A (TP30) Gas Pruner View Diagrams & Manuals
Homelite
UT-20042 25cc EZ Reach String Trimmer View Diagrams & Manuals
UT-20042-A 25cc EZ Reach String Trimmer View Diagrams & Manuals
UT-20043-A 25cc EZ Reach String Trimmer View Diagrams & Manuals
UT-20022 25cc Trimmer View Diagrams & Manuals
UT-20022-A 25cc Trimmer View Diagrams & Manuals
UT-20023-A 25cc Trimmer View Diagrams & Manuals
UT-20002 25cc Trimmer View Diagrams & Manuals
UT-20002-A 25cc Trimmer View Diagrams & Manuals
UT-20003-A 25cc Trimmer View Diagrams & Manuals
UT20006 25cc String Trimmer View Diagrams & Manuals
UT20026 String Trimmer View Diagrams & Manuals
UT20046 String Trimmer View Diagrams & Manuals
UT20024B 25cc String Trimmers View Diagrams & Manuals
UT20044B 25cc String Trimmers View Diagrams & Manuals
UT20004A (TrimLite) 25 CC String Trimmer View Diagrams & Manuals
UT20004B (TrimLite) 25cc String Trimmer View Diagrams & Manuals
UT200044A 25cc String Trimmer View Diagrams & Manuals
UT20024A (Trim N' Edge) 25cc String Trimmer View Diagrams & Manuals
UT20044A (EZ Reach) 25cc String Trimmer View Diagrams & Manuals
RY30140 30cc String Trimmer View Diagrams & Manuals
RY30220 30cc String Trimmer View Diagrams & Manuals
RY30160 30cc Brushcutter View Diagrams & Manuals
RY30220A 30cc String Trimmer View Diagrams & Manuals
RY30240B 30cc String Trimmer View Diagrams & Manuals
RY30220B 30cc String Trimmer View Diagrams & Manuals
RY30240 30cc String Trimmer View Diagrams & Manuals
RY30524 30cc String Trimmer View Diagrams & Manuals
RY30544 30cc String Trimmer View Diagrams & Manuals
RY30260B 30cc Brushcutter View Diagrams & Manuals
RY30522 30cc String Trimmer View Diagrams & Manuals
RY30542 30cc String Trimmer View Diagrams & Manuals
RY30562 30cc Brushcutter View Diagrams & Manuals
RY30260 30cc Brushcutter View Diagrams & Manuals
RY30564 30cc Brushcutter View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
- Pruner Parts
This part replaces obsolete part #: 984760001
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 Muffler Gasket
No questions have been asked yet
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.
GAS TANK LOOSE
GEORGE - May 13, 2019
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, TORX DRIVER
PUT NEW BUMPERS ON
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Gas/oil mixture leak. hard to start.
Roland - August 15, 2016
Tool Type
Trimmer
Difficulty
Medium
Time
More than 2 hours
Tools Used
Pliers, Power Drill, Socket set, Nutdriver
I basically rebuilt the trimmer, replacing all available gaskets and fuel lines and filter. I also removed some carbon buildup from the top of the piston and inside the combustion area. I found a damaged clutch during the breakdown and was lucky enough to find one elsewhere since it is a discontinued part. I viewed some repair tutorials from ereplacementparts for areas where I wasn't sure what to do, like, how to remove the drum and broken clutch. Which I needed to purchase a new tool for. A 4" T-25 driver. They were very simple to understand as well as the useful knowledge they contained.
My Ryobi is 11 years old this year with me as the only owner and now its runs like new again.
My Ryobi is 11 years old this year with me as the only owner and now its runs like new again.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
String trimmer kept dying on use, leaking gas, compression seemed weak plug cylinder fouled badly
Wade - July 24, 2016
Tool Type
Trimmer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Nutdriver
1. Disassembled cylinder block & removed gaskets hoses rings etc.
2. Cleaned housing & carburetor.
3. Installed new hoses gaskets rings reassembled used lock-tight on threaded bolts to cylinder housing.
4. Rebuilt carburetor with kit & changed plug.
5. Ran trimmer adjusted carburetor.
2. Cleaned housing & carburetor.
3. Installed new hoses gaskets rings reassembled used lock-tight on threaded bolts to cylinder housing.
4. Rebuilt carburetor with kit & changed plug.
5. Ran trimmer adjusted carburetor.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
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.
