SKU: 4170495020

1987-1999 Yamaha Big Bear 350 4x4 (YFM350FW) Cylinder Piston Gasket Top End Kit Set 1UY-11310-03 93450-19095

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Description

1987-1999 Yamaha Big Bear 350 4x4 (YFM350FW) Cylinder Piston Gasket Top End Kit Set 1UY-11310-03 93450-1909583mm Cylinder Jug Piston Gasket Kit For Yamaha Big Bear, Bruin, Grizzly, Moto 4, Raptor, Warrior, Wolverine 350 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

83mm Cylinder Jug Piston Gasket Kit For Yamaha Big Bear, Bruin, Grizzly, Moto-4, Raptor, Warrior, Wolverine 350

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 - 83.00 mm.
All of the components within this kit are bolt-on ready for a hassle free installation.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Piston Material: Forged Aluminum
Actual Displacement: 348cc
Bore Type: Stanard Bore
Bore Size: STD 83.00mm
Stroke: 64.50mm
Piston Diameter: 82.95mm
Piston Height: 58.80mm
Pin Height: 65mm
Pin Diameter: 19mm

Replacement Part Number:
Cylinder: 1UY-11310-03, 5YT-11310-00-00, 4WU-11310-00-00
Cylinder Base Gasket: 4KB-11351-00
Cylinder Head Gasket: 1UY-11181-01
Chain Tensioner Gasket: 3GD-12213-00
Piston: 1YW-11631-01-Y0, 1UY-11631-01-Y0, 5UH-11631-00-C0
Pin, piston: 55V-11633-00
Ring Set, piston: 4GB-11610-00
Circlips, piston: 93450-19095

Fitments:
Fit for Yamaha Moto-4 350 (YFM350ER) 1987 - 1995
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 Warrior 350 (YFM350X) 1987 - 2004
Fit for Yamaha Raptor 350 (YFM350R) 2004 - 2013
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 83mm Cylinder
1x Piston(STD)
1x Piston Ring Set
1x Wristpin
1x Circlip(2)
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x Chain Tensioner 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
  • 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
SKU: 4170495020

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4.4 ★★★★★
Based on 29 reviews
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Product Reviews
B
Billy and Lori
Massapequa, US
★★★★★ 5
Beautiful end table that works well anywhere.
Color: Black, Number of Items: 1
The JUSTOGO end table immediately stands out thanks to its unique, modern design and practical features. Its rectangular shape makes it surprisingly versatile. You can position it to showcase the three open shelves for easy access and display, or use it as a narrower separation piece or traditional end table. That flexibility makes it adaptable to different rooms and layouts. One of the most thoughtful design choices is the placement of the built-in USB ports and power outlets. Located on the middle shelf, they don’t crowd the tabletop and still remain easily accessible for charging devices. This keeps the top surface clean and fully usable while ensuring cords aren’t stretched too far. The black finish is another plus. It’s neutral, clean-looking, and blends easily with a wide range of décor styles. If there’s a downside, it’s the assembly process. The instructions could be clearer, and while the advertised setup time is 20 minutes, it realistically takes closer to 40. That said, assembly is a one-time task, and once it’s complete, you’re left with a sturdy, functional, and visually appealing piece of furniture. Overall, it’s a smart combination of style and utility.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
M
Melissa Medley
Boise, US
★★★★★ 5
Love This
Color: Black, Number of Items: 1
I love love love the charging station on this table. The modern and sophisticated decor is perfect for my home. I love that this style matches with several rooms in my home. I would definitely order another one so I can have a pair. This table was easy to assemble and put together. The table is strong and durable and easy to clean. This table is a beautiful and functional piece of furniture to add to any home. Excellent value for the money. A definite must-have for your home.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
K
Verified Purchase
Kelly Freund
Waukegan, US
★★★★★ 5
Happy with this purchase
Size: 25FT, Color: White
Perfect, love the wall clips, adhesive is good!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
C
Verified Purchase
Colin Reef
Fort Morgan, US
★★★★★ 5
Perfect solution
Size: 20FT, Color: White
Incredible value - solves our phone charging needs without bulky chargers attached to traditional extension cords… aesthetically superior with outlet cover and flat cord that we plan to conceal between tiles. A+
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
W
Verified Purchase
Wendy Newton
Los Angeles, US
★★★★★ 5
Great Extension Cord for hard to reach places.
Size: 5FT, Color: White
Wasn't sure if I would like this or not but I really do. We have the stand up version (not by same vendor) but really liking this smaller version that I was able to stand on edge and not take up valuable room on my side table. We used it for the outlet under the bed to the bedside table. Has enough power to run multiple items with no issues. I like that it comes with USB, C, 2 prong, 3 prong. I didn't use the included cover but that was because we had something else plugged into the other socket.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026

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