Product came just as listed, no surprises. Happy with the whole experience and the quality is solid.
Good clock spring, fixing all the issue immdeiately
Fix the issue, great injector
SKU:M587-A030
Couldn't load pickup availability
Replacement Part Number:
1S4-11311-00-A0
1S4-11311-01-A0
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Fitment:
Fit for Yamaha YBR250 (1S4) 2007-2009
Fit for Yamaha XT250 (1YB) 2013-2015
Features:
Kit includes piston, rings, pin, clips (you get exactly what is pictured).
Cast piston has super-high silicone content for additional strength.
Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life.
Piston dome is anodized for superior heat resistance and longer lifespan.
Kit is for standard bore size - 74mm.
All of the components within this kit are bolt-on ready for a hassle free installation.
Specifics:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Piston Material: Forged Aluminum
Surface Finish: Forged
Bore Size: 74.00 mm
Piston diameter: 73.93 mm
Piston height: 40.50 mm
Displacement: 249 cc
Piston pin diameter: 17 mm
Piston pin height: 49 mm
Cylinder Number: 1S400
Package Includes:
1x Cylinder
1x Piston
1x Piston Ring Set
1x Wristpin
1x Circlips(2)
1x Intake Manifold Gasket
1x Cylinder Base Gasket
1x Cylinder Head Gasket
Note:
Ring end gaps are checked prior to shipment for proper sizing.
Please check out the product and size fits your motorcycle or not before you purchase.
Shipping:
Free Shipping
Handling time: Ship within 24 hours
Delivery Time: 3-7 business days
Warranty:
1. Condition: 100% Brand New
2. Warranty Period: 1 Years
3. 24-Hour Support: Provide you with timely after-sale support

This gasket kit was perfect for rebuilding my Rancher 350's top end. All gaskets matched perfectly and sealed tightly with no leaks. Quality parts that made the repair straightforward and reliable.
Great Item, Great Price
Good price and fast ship
This cylinder head kit is a complete solution for 110cc engines. Everything needed was included, making installation straightforward. The quality is excellent and it runs smoothly. Fast shipping and great value. Very happy with this purchase.
This cylinder and piston kit brought my Yamaha two-stroke back to life. Great quality parts, easy installation, and it now runs like new. Highly recommended.
It fixed 2 problems--AC going off and on (breen light too). Ac was always pulling outside air in--now I can switch to recirculation. My husband had no trouble with the install even tho he is disabled.
GREAT
Great fit overall.
Good communication
Great product. Delivered on time and as explained. I screwed up the order and the bent over backwards to help me. Great company.
Great product, fits perfectly, and of course looks so pretty, it gives a nice beautiful new look to my truck, also I contact costumer service and they help me pretty fast, totally recommend this company
Looks great perfect fit
Finallly, they solve the problem. Good service
😊
Everything fit perfectly 👌
Got it in 8 days
Good looking will install it tomorrow
Grill fits well
Removing the OEM seals were harder than I expected. However, installing these new ones were WAY easier than I expected! The new clips lined up perfectly, even though I didn't hear all of the clicks. They are firmly in place and look great.
The quality and fitment was on par with OEM. It was an easy install with no issues.
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Product came just as listed, no surprises. Happy with the whole experience and the quality is solid.
Good clock spring, fixing all the issue immdeiately
Fix the issue, great injector
The fuel injectors work well.