Medium
30-60 minutes
This is a genuine replacement part sourced from the original manufacturer for use with lawnmower engines. The special fan connects to the flywheel assembly and is used to cool the motor as the flywheel rotates. This fan is available as an individual replacement part, please see model diagram for associative parts.
Fan 20 157 01-S
OEM part for: Kohler, Toro
Part Number: 20 157 01-S
$33.67
In Stock
Ships within 1 business day 
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Compatibility
This Fan will fit the following 437 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 437 matching models.
437 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Kohler
- Toro
This item works with the following types of products:
- Engine
- Lawn Tractor
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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.
the plastic fan came loose and was melted to motor housing by heat and friction.
Edward - June 10, 2022
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Removed old fan that was damaged and was able to salvage motor housing and reuse after separating the damaged fan from it. Installed new fan and bolt and secured. Verified fly wheel with fan mounted to it spun freely and did not drag against the motor housing.
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The engine leaked oil from the overhead valve cover gasket failure and the leaking oil caught fire and melted all the plastic parts
Frederick - May 1, 2018
Tool Type
Lawn Tractor
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
I removed all melted plastic parts and valve cover and head. I cleaned everything and replace with new gaskets and parts. It started and runs perfectly as it did before the fire.
I am happy I caught the fire to put it out before it was totally destroyed. Now I have my mower back and will keep an eye on that overhead valve cover for leaks in the future.
I am happy I caught the fire to put it out before it was totally destroyed. Now I have my mower back and will keep an eye on that overhead valve cover for leaks in the future.
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My own darned fault I backed into another lawn tractor and broke the fan and grass screen.
J. - June 26, 2017
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Nutdriver, Adjustable Wrench
Parts Used
Pulled off the engine metal shroud. Fit the grass screen to the fan; re-installed the fan, grass screen; and re-installed the engine metal shroud.
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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.
Learn MoreOur 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.
