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Description
188-512-1 Primer Bulb for Poulan 530047721 PP136 PP330 Echo Chainsaw Ryobi Homelite Bolens String Trimmer Leaf Blower - 6 Pack503936601 188 512 1 Primer Bulb Key Features Package contains 6 primer bulbs. Snap in design for direct replacement. Constructed from fuel resistant polymer to prevent hardening and cracking. Dimensions: Approximately 1 5 16 in (height) x 7 8 in (outer diameter). For use with 2 cycle small engines to assist with cold starts. Replaces Cross Reference Part Numbers 188 512 1 188 512 503936601 530047721 01183 791 683974 Compatibility & Fitment Fits
503936601 / 188-512-1 Primer Bulb
Key Features
- Package contains 6 primer bulbs.
- Snap-in design for direct replacement.
- Constructed from fuel-resistant polymer to prevent hardening and cracking.
- Dimensions: Approximately 1-5/16 in (height) x 7/8 in (outer diameter).
- For use with 2-cycle small engines to assist with cold starts.
Replaces / Cross-Reference Part Numbers
- 188-512-1
- 188-512
- 503936601
- 530047721
- 01183
- 791-683974
Compatibility & Fitment
-
Fits Brands:
- Poulan
- Ryobi
- Echo
- Homelite
- Bolens
- Husqvarna
-
Fits Equipment:
- String Trimmers
- Leaf Blowers
- Chainsaws
- Brush Cutters
-
Fits Walbro Carburetor Models:
- WT-23A
- WYJ-33
- WYJ-34
- WYJ-45
- WYJ-92
- WYJ-94
-
Select Confirmed Models:
- Poulan: PP136, PP136E, PP330, PPB100E, PPB150E, PPB200, PPB250E, PPB300E, PPB350
- Ryobi: BP42
- Husqvarna: K750, K760
When to Replace
- The existing bulb is cracked, brittle, or has turned opaque.
- The bulb does not return to its original shape after being pressed.
- Fuel is leaking from or around the primer bulb.
- The engine is difficult to start and fails to draw fuel.
Installation Tips
- Disconnect the spark plug wire for safety before performing service.
- Observe or photograph the fuel line connections before disassembly.
- Use small pliers to remove the retaining clip and old bulb.
- Clean the carburetor housing surface before installing the new bulb.
- Ensure the new bulb is fully seated to create a proper seal.
- Reconnect the fuel lines to the correct inlet and outlet ports.
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 5 reviews
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Product Reviews
★★★★★ 5
Great paper plates
Great value and great light weight paper plates. Thank-you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
★★★★★ 5
Great value, does the job
Paper plates can vary widely with individual plate strength, resistance to sogginess, size and more. These are plain paper plates that we use in a plastic holder. Nothing special, but they do the job as expected.
The real selling points are the fit in my holder (these are appropriately snug suggesting size integrity) and do they hold up long enough for a meal. Thumbs up in both respects. They are standard thickness, so you can expect them to work with light loads. Plunk some heavy food on the plate and you better either double-up or use a holder like I do.
The one thing I don't like is the difficulty in separating out individual plates. Without this effort you inevitably peel out 2-4 plates at a time. (Maybe these are supposed to be double layer? Could be.)
The best reason for buying this set is the low cost per plate. We use these for every meal when it is just my wife and I and go through a lot of plates. The value for the money can not be beat.
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Reviewed in the United States on May 13, 2025
★★★★★ 5
Great disposable plate.
I liked these so much I’ve purchased them twice.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Must have staple for home
Excellant value
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Reviewed in the United States on April 2, 2026
★★★★★ 4
Sturdy paper plates
I ordered "too" heavy paper plates. A paper plate is used daily to zap my bacon in folded over paper towel. I use them daily for various kitchen tasks.
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Reviewed in the United States on March 1, 2025