Need Help?
Call or text
Check your model number or use our Cross Reference Tool to determine if this part will work with your appliance. Where can I find my model number?
Secure and trusted checkout with
Usually ships within 4 - 14 days
Genuine Mtd part.
Part Number 731-05509 replaces AP6142614, 3536241, PS12691083.
This replacement part is a primer bulb. It is a genuine replacement part made by MTD. Primer bulbs are found in many types of machines that use engines to function. This part is a rubble button that is pressed to prime the engine before it is actually started. It also sometimes helps to fill the carburetor with the correct amount of fuel so that everything starts correctly. A new primer bulb might be needed if the user notices that the engine is not starting or slow to start. This can be because of normal wear and tear. Be sure the engine is shut down completely before replacing this part. This primer bulb is a genuine OEM replacement part to ensure long-lasting use. This part is sold individually and is sourced directly from the manufacturer to ensure proper fit.
Contact us in a way that is convenient for you
Share your thoughts with other customers
If you include your email address, you will be notified via email when an answer is posted. If you do not include your email address please continue to check back here for our answer. Our dedicated staff will answer your question as soon as possible, usually within a few minutes.
Mtd 731-05509 Primer Bulb OEM Part