SKU: 18928949724

Cylinder Piston Gasket For Yamaha YFM350U YFM350FW Big Bear 87-99 Top End Kit

$75.39 $83.77
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Cylinder Piston Gasket For Yamaha YFM350U YFM350FW Big Bear 87-99 Top End KitFeatures: 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

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

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.

Shipping:
Free Shipping
Delivery Time: 2-6 working days

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

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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: 18928949724

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Victoria
Pawtucket, US
★★★★★ 5
Super cute and soft!
Size: 3T, Color: Light Mauve
Daughter fits very well in this pink pullover sweater. It’s true to size very pleased with the make of the sweater, it’s made very well very soft, is medium thickness and is warm for my daughter to wear in NY’s cool fall weather and now winter with a coat of course. Also is not to thick where wearing a coat could be an issue. Great value for your money in the product you are getting it washes well and stains come out easily sometimes with a little help. Great buy must have!
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Reviewed in the United States on December 17, 2024
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Adam
West Palm Beach, US
★★★★★ 5
Good buy
Size: Small, Color: Bright Pink
Very nice quality! Pretty true to size.
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Reviewed in the United States on May 26, 2026
A
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ABENTON
Louisville, US
★★★★★ 5
Extremely soft and warm!!
Size: 2T, Color: Bright Pink
This is a really nice thick toddler hoodie! I bought the dark pink in a size 2t for my 25 month old daughter. She weighs 28 pounds. It is a great fit and also has a little wiggle room. The hoodie is extremely soft and comfortable. Keeps her toasty warm. Holds up in the wash, no shrinking. Came packaged well, no funky smell, arrived on time. Overall a great purchase
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Reviewed in the United States on November 11, 2025
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Verified Purchase
tiny
Charlottesville, US
★★★★★ 4
runs small
Size: XX-Large, Color: Black
This hoodie is cute, cozy, and apparently designed for a child who has never met a growth spurt. It runs really small, like “did I accidentally order doll clothes?” small. The fabric feels nice and soft though, and right out of the package it looked well made and sturd... no loose threads or sketchy seams. Just definitely size up unless you’re planning for a very snug, fashion-forward moment. I bought this hoodie specifically to add a vinyl decal, and for that purpose it worked great. The material took the vinyl nicely, pressed well, and didn’t scorch or warp, which is always a relief when you’re hovering over a heat press like a nervous parent. It also washes nicely and still looks good after laundering… though it did shrink a little, which did not help its already petite situation. the material is thick and nice weight. Pros: good quality fabric, soft and comfy, great surface for vinyl decals, washes well. Cons: runs very small, shrinks a bit after washing, value is average unless you size up. Overall, it’s a nice little hoodie that does the job—as long as you order with future growth (and laundry shrinkage) firmly in mind.
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Reviewed in the United States on December 30, 2025
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bonnie burgess
Lake Worth, US
★★★★★ 5
Children's outerwear, a must have .. excellent quality, fit & price!
Size: X-Small, Color: White
One of the very best pull over sweatshirts I've come across. Quality fabric with an amazing cut & fit that rises above the standard, more boxy cut of children's sweatshirts I've purchased in the past. With an 8 year old granddaughter that's constantly on the go & is never cold lol, I needed a piece of outerwear that wasn't too thick, bulky or restrictive that she'd forget she was wearing. A piece of clothing that would keep her warm yet comfortable, thru out her day & boy did I hit the jackpot. All of the above plus an overall amazing fit & stylish look I wasn't expecting but could tell she absolutely loved. An added bonus, after at least 15 or more washes to-date, it still looks & fits as good as it did the very first time she wore it. I've since purchased other similar items but none compare. An excellent buy !!!!
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Reviewed in the United States on April 4, 2025

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