Medium
30-60 minutes
This is a genuine replacement part manufactured for use with small engines. The muffler assembly is complete including the adapters, the gasket, and mounting hardware. The exhaust muffler is sold individually.
Muffler 494585
OEM part for: Briggs & Stratton, Briggs & Stratton Engines, Toro
Part Number: 494585
$25.62
In Stock
Ships within 1 business day 
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Compatibility
This Muffler will fit the following 9066 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Generator Parts
- Pressure Washer Parts
This part replaces obsolete part #: 393615, 493936, 297274, 297506
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Repair of a 15+ year old Weedeater tiller
The parts were exactly what I needed
Guest -
May 18, 2024
Verified Purchase
Briggs & Stratton muffler
Easy repair, installed easily, quality part!!
Guest -
June 10, 2020
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.
Rototiller sat for years, caramelized gasoline throughout, muffler rusted out.
Adam - June 21, 2017
Tool Type
Engine
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Power Drill, Socket set, Wrench Set, Adjustable Wrench, Gasket scraper, Easy-outs, 1/4-20 tap
1. Remove carburetor/tank assembly.
a.disconnect throttle cable.
b.disconnect governor spring
2. Separate carburetor from tank, remove diaphragm and clean all thoroughly.
3. Make sure no old gasket material is remaining and all ports are clear/open.
4. Re-assemble diaphragm, carburetor and tank using new parts and gaskets.
5. Re-install carburetor/tank assembly on engine in reverse order as dis-assembly.
Muffler installation:
1. Flatten retaining tabs with a cold chisel or screwdriver and unbolt old muffler.
Note: In my case one of the bolts snapped off in the block so that was another can of worms, I filed the bolt flat as best that I could, center punched it (emphasis on center!) and drilled for an easy-out. Easy-outs didn't work, too much outward force so I drilled a little bigger and tapped it out. Use the proper size drill bits and make sure drilling is straight with the block!
2. Install new muffler and gasket then curl the retaining tabs to secure the bolt heads.
a.disconnect throttle cable.
b.disconnect governor spring
2. Separate carburetor from tank, remove diaphragm and clean all thoroughly.
3. Make sure no old gasket material is remaining and all ports are clear/open.
4. Re-assemble diaphragm, carburetor and tank using new parts and gaskets.
5. Re-install carburetor/tank assembly on engine in reverse order as dis-assembly.
Muffler installation:
1. Flatten retaining tabs with a cold chisel or screwdriver and unbolt old muffler.
Note: In my case one of the bolts snapped off in the block so that was another can of worms, I filed the bolt flat as best that I could, center punched it (emphasis on center!) and drilled for an easy-out. Easy-outs didn't work, too much outward force so I drilled a little bigger and tapped it out. Use the proper size drill bits and make sure drilling is straight with the block!
2. Install new muffler and gasket then curl the retaining tabs to secure the bolt heads.
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Tiller muffler and air filter needed changing.
Jerry - July 27, 2017
👍 0 of 1 people found this instruction helpful
Tool Type
Engine
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set
Parts Used
Removed old muffler and air filter and replaced with new ones.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
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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.
