Easy
15-30 minutes
This item has been OEM sourced to ensure of a high-level of quality. The primer bulb/valve kit is intended to be used with lawnmower engines from Tecumseh and Toro. This item attaches to the carburetor and is used to cycle fuel through the fuel system prior to cold starting the engine. The items within the kit are sold together and will include the bulb, seal, valve, and spring.
Primer Bulb And Valve Repair K 640351
OEM part for: Tecumseh, Toro
Part Number: 640351
$5.48
In Stock
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Frequently Purchased Together ?
Compatibility
This part will fit the following 21 machines
Toro
20012 (260000001-260999999)(2006) Lawn Mower View Diagrams & Manuals
20069 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20071 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20071A (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20072 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20072A (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20073 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20073A (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20074 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20074A (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20075 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20076 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20076A (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20094 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20096 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
20098 (270000001-270999999)(2007) Lawn Mower View Diagrams & Manuals
Tecumseh
TEC-640350 Carburetor Part View Diagrams & Manuals
TEC-640350A Carburetor Part View Diagrams & Manuals
TEC-640358 Carburetor Part View Diagrams & Manuals
TEC-640350 (5314) Carburetor View Diagrams & Manuals
TEC-640358 (5322) Carburetor View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Lawn Mower Parts
Customer Part Reviews ?
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Home owner
Great service fixed my priming problem
Guest -
June 14, 2022
Verified Purchase
The parts arrived on timeand they were in good condition they worked fine my mower is working like a new one now thanks
The parts arrived on time and they were in good condition ..they worked fine my mower is working like a new one thanks
Guest -
March 17, 2020
Verified Purchase
It worked fine
Worked as needed
Guest -
December 21, 2019
Verified Purchase
Easy 5 minute primer bulb repair
Lawnmower started like new
Guest -
July 22, 2019
Verified Purchase
Part was exactly what was needed
The primer bulb and valve repair kit worked perfectly. The mower starts without any trouble. We appreciated receiving the order within a few days as well.
Guest -
June 12, 2019
Verified Purchase
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t days ago
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.
Old worn out primer bulb
John - March 24, 2016
👍 7 of 10 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, knife
Parts Used
Removed old primer bulb using knife and pliers. Put new primer bulb in place and secured with provided ring. Easy.
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Primer bulb was cracked.
Jim - October 4, 2017
👍 3 of 4 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set, Small hammer
Parts Used
1. Took off the old primer bulb.
2. Cleaned the carburetor with cleaner.
3. Placed the new primer bulb repair kit.
4. Used a socket to secure the bulb onto the carburetor.
5. Primed bulb 3 times and started the engine.
2. Cleaned the carburetor with cleaner.
3. Placed the new primer bulb repair kit.
4. Used a socket to secure the bulb onto the carburetor.
5. Primed bulb 3 times and started the engine.
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Prime bulb was worn
Timothy - April 11, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers, Socket set
Parts Used
Removed the old primer bulb with pliers and used a screwdriver to remove the ring. Placed the primer bulb kit inside a socket and used a rubber hammer to gently insert the new primer bulb.
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Lawn mower would start and stall
Philip - May 28, 2017
👍 1 of 2 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set, Pick set
Parts Used
Found a hole in the primer bulb. Replaced the primer bulb. Done!
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Engine stop cable and primer bulb
Mitchell - February 17, 2022
👍 0 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, None
Took about an hour to get the job done. Removed carburetor and cleaned it up removed old bulb and put new one on.replaced Stop cable and was done.
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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.
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.
