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Description
570682A 951-10639A Primer Bulb - For Tecumseh HMSK80 HMSK100 HMSK110 LH318SA MTD Craftsman Troy-Bilt Cub Cadet Snow Blower570682A 951 10639A Primer Bulb Key Features Direct replacement primer bulb for small engines. Facilitates cold starts by delivering fuel directly to the carburetor. Features a two tab mounting design for secure installation. Constructed from fuel resistant material for durability with gasoline and ethanol blends. Replaces Cross Reference Part Numbers Tecumseh: 570682A, 570682, 321802A MTD (Craftsman Troy Bilt Ryobi Bolens Yard Machines Lawn Boy Yard
570682A / 951-10639A Primer Bulb
Key Features
- Direct replacement primer bulb for small engines.
- Facilitates cold starts by delivering fuel directly to the carburetor.
- Features a two-tab mounting design for secure installation.
- Constructed from fuel-resistant material for durability with gasoline and ethanol blends.
Replaces / Cross-Reference Part Numbers
- Tecumseh: 570682A, 570682, 321802A
- MTD (Craftsman / Troy-Bilt / Ryobi / Bolens / Yard Machines / Lawn-Boy / Yard-Man): 951-10639A, 951-10639, 751-10639, 951-10888A, 951-10888B
- Stens: 056-200
Compatibility & Fitment
- Fits a wide range of snowblowers and other outdoor power equipment.
- Compatible Brands: MTD, Tecumseh, Cub Cadet, Craftsman, Troy-Bilt, Ryobi, Bolens, Yard Machines.
- Tecumseh Engines: Fits SnowKing models including AV520, HMSK100, HMSK105, and HMSK110.
- MTD Snowblower Models: Fits series 161-JW, 165-SU, 370-SUB, 483-SU, and 490-SU.
When to Replace
- The existing bulb is cracked, hazy, or brittle.
- The bulb does not return to its original shape after being pressed.
- Fuel is leaking from or around the primer bulb assembly.
- The engine becomes difficult to start and requires excessive priming.
Installation Tips
- Ensure the engine is cool and disconnect the spark plug wire before starting work.
- Note the orientation of the fuel lines before disconnecting them from the old bulb.
- Squeeze the two mounting tabs on the old bulb to release it from the housing.
- Insert the new bulb until the two mounting tabs click securely into place.
- Reconnect the fuel lines to the correct ports on the new bulb.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Really great shirt, really thick material
An unexpected pleasant surprise. Really nice quality, minimal shrinkage, and very few wrinkles out of the dryer. Nice, comfortable fit, and for big-but-not-tall guys, the fitment is very presentable. Sleeves aren't crazy long, and the shirt itself isn't so long that you feel like you're wearing a dress.
These aren't complaints, but I do want to share two notes that were important to me:
1. If you want a breast pocket, be sure to select the right shirt. There are two different versions, and it's not particularly obvious which is which.
2. The material is thick. Really thick. So the shirt is pretty heavy, and it doesn't breathe very well. For me, this is unquestionably a winter shirt. If, like me, you tend to run a bit warm, this shirt can make you feel like you're wearing a parka.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 6, 2023
★★★★★ 5
Great Value from Amazon Essentials
I can’t believe the quality of this shirt given the low price I paid for it. It fits perfectly, looks impressive, and is very comfortable. The shirt has survived two washes so far and looks as good as new. I couldn’t be more satisfied with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 1
Too large, length too long
Size: Medium, Color: Light Grey Vertical Stripe
Runs large, and the length is far too long to wear untucked like in the photos. Always wear a Medium, this fits like a Large. Length of shirt is long and obviously made to be tucked in. You would look ridiculous if you left it untucked. Dont understand why companies still insist on designing shirt to be tucked in when most people dont wear it like that these days
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Great shirt
Size: 6X-Large Big, Color: Pale Pink
Amazing deal
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Traditional Grown Man Shirt
Size: Large, Color: Light Grey Vertical Stripe
Great cotton, classically-style button down shirt for guys not wanting anything slim fit, this shirt size is legitimate. It’s a nice heavyweight cotton shirt. I don’t think I’d say it was wrinkle resistant but it doesn’t take much effort to press this garment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
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