SKU: 79362320519

1987-1999 Yamaha Big Bear 350 4x4 (YFM350FW) Cylinder Piston Gasket Top End Kit Set 1UY-11310-03-00 Generic

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Description

1987-1999 Yamaha Big Bear 350 4x4 (YFM350FW) Cylinder Piston Gasket Top End Kit Set 1UY-11310-03-00 GenericCylinder Piston Gasket Top End Kit Set For Yamaha Bruin 350 2x4 4x4 2004 2006 Generic Features: Kit includes piston, rings, pin, clips, & top end gasket kit (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. The gaskets use

Cylinder Piston Gasket Top End Kit Set For Yamaha Bruin 350 2x4 4x4 2004-2006 Generic

Features:
Kit includes piston, rings, pin, clips, & top end gasket kit (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.
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 83.00mm.
Piston is 82.95mm.
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
Actual Displacement: 348 cc
Bore size: STD 83 mm
Piston diameter: 82.95 mm
Piston height: 58.8 mm
Piston pin diameter: 19 mm
Piston pin height: 65 mm
Stroke: 64.50 mm

Replaces Part Number:
Cylinder: 1UY-11310-03-00, 5YT-11310-00-00, 4WU-11310-00-00
Piston: 1YW-11631-01-Y0
Piston Pin: 55V-11633-00-00
Piston Ring Set: 4GB-11610-00-00
Head Gasket: 1UY-11181-01-00
Base Gasket: 4KB-11351-00-00
2x Circlips: 93450-19095-00

Fitment:
Fit for Yamaha Big Bear 350 4x4 (YFM350FW) 1987 - 1999
Fit for Yamaha Big Bear 350 2x4 (YFM350U) 1996 - 1999
Fit for Yamaha Bruin 350 4x4 (YFM350FA) 2004 - 2006
Fit for Yamaha Bruin 350 2x4 (YFM350A) 2004 - 2006
Fit for Yamaha Grizzly 350 2x4 (YFM350G) 2007 - 2011
Fit for Yamaha Grizzly 350 4x4 (YFM350FG) 2007 - 2014
Fit for Yamaha Grizzly 350 4x4 IRS (YFM350FGI) 2007 - 2011
Fit for Yamaha Moto-4 350 (YFM350ER) 1987 - 1995
Fit for Yamaha Raptor 350 (YFM350R) 2004 - 2013
Fit for Yamaha Warrior 350 (YFM350X) 1987 - 2004
Fit for Yamaha Wolverine 350 4x4 (YFM350FX) 1995 - 2005
Fit for Yamaha Wolverine 350 2x4 (YFM350X) 2006 - 2009

(Compatibility Chart is for Reference ONLY!!!)
(Please Compare with Your faulty unit and the image we provided to Decide Fitment)

Package Includes:
1x Cylinder
1x Piston
1x sets of Rings
1x Wristpin
2x Circlips
1x Intake Gasket
1x Cylinder Head Gasket
1x Cylinder Base 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.

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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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
SKU: 79362320519

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4.5 ★★★★★
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Doris D.Willingham
Los Angeles, US
★★★★★ 5
My puppy love these.And he's an extra large american bully , so he put them through their paces
Color: Blue&Red Fish
These toys were an excellent choice. My puppy really enjoyed him and he's definitely an aggressive chewer.He's an extra large american bully. But a big baby, especially when it comes to his toy\nOf course he's tough on them But These definitely held up well. So if you have a.n aggressive Chewer these are an excellent choice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
A
Verified Purchase
Amanda Vinzant
Birmingham, US
★★★★★ 5
Great toy for aggressive chewers
Color: Purple & Blue
My dog loves this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
J
Verified Purchase
Jellyshodi
Alexandria, US
★★★★★ 5
Good chew toy
Color: Purple & Blue
Our golden retrievers love these. They last awhile too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
S
Verified Purchase
Shan
Lake Worth, US
★★★★★ 5
Dog toy is tough and durable
Color: Blue&Red Fish
It’s great for aggressive chewers, my pittbull loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
C
Verified Purchase
CA
Carnegie, US
★★★★★ 1
Our dogs hurt their mouths chewing these bones
Color: Purple & Blue
I don't do a lot of reviews because I realize many are objective opinions. However, in this case I felt it was necessary to warn others. Our dogs are aggressive chewers. Their last rubber bones (not these) which we've purchased before, and recently purchased again, were destroyed quickly. Chunks of rubber came off the ends. Since those didn't hold up like they used to, I found these harder bones hoping they would last longer. They were able to gnaw into the hard plastic within a few minutes. This created sharp edges that cut their mouths. When I saw a bit of blood on the bones, I took them away from the dogs and threw them away. I wondered why they quit chewing on them after being so excited at first. Also, these are hard enough to damage a tooth.
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Reviewed in the United States on December 6, 2025

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