Medium
30-60 minutes
This is available as an individual replacement part. The o-ring seal goes next to the charge pump cover and is made of rubber. During replacement, it may require a socket set to help install this item correctly. It will need to be replaced if it becomes broken. It is a genuine OEM sourced part which is specially designed for use with Toro lawn tractors.
O-ring-seal 109-3540
OEM part for: Toro
Part Number: 109-3540
$6.59
In Stock
Order within the next 12 hours and your part ships today! 
Compatibility
This part will fit the following 184 machines
Toro
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Show More Compatible Models
This item works with the following types of products:
- Lawn Tractor Parts
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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.
Charge pump cover was leaking oil
Vernon - June 19, 2017
👍 2 of 3 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Socket set
Parts Used
I removed the two bolts that held the charge pump cover in place and replaced the faulty O ring. I didn't realize that the gear inside had to be timed when it was reinstalled. Lining up the two dots and replacing took a little effort. All ended well and no more leak.
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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.
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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.
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