SKU: 29330077670

440cc 89mm Big Bore Jug Cylinder for Honda TRX400EX TRX400X Top End Rebuild Kit

$96.09 $106.77
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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30

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Description

440cc 89mm Big Bore Jug Cylinder for Honda TRX400EX TRX400X Top End Rebuild KitReplacement Part Number: Cylinder: 12100 HN1 A70, 12100 KCY 670Cylinder Base Gasket: 12191 KCY 672Cylinder Head Gasket: 12251 HN1 003Cylinder Head Valve Cover: 12391 KCY 671Tensioner Gasket: 14560 KCW 851Piston: 13101 KCY 670Pin, piston: 13111 KCY 670Ring Set, piston: 13011 KCY 670Circlips, piston: 90601 KA5 000Fitments: Honda TRX400EX Sportrax 400 2x4 1999 2008 Honda TRX400X 2x4 2009 2014 Honda XR400R 1996 2004Features: Kit includes piston, rings,

Replacement Part Number:
Cylinder: 12100-HN1-A70, 12100-KCY-670
Cylinder Base Gasket: 12191-KCY-672
Cylinder Head Gasket: 12251-HN1-003
Cylinder Head Valve Cover: 12391-KCY-671
Tensioner Gasket: 14560-KCW-851
Piston: 13101-KCY-670
Pin, piston:13111-KCY-670
Ring Set, piston: 13011-KCY-670
Circlips, piston: 90601-KA5-000

Fitments:
Honda TRX400EX Sportrax 400 2x4 1999-2008
Honda TRX400X 2x4 2009-2014
Honda XR400R 1996-2004

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 big bore size - 89.00 mm.
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: 440cc
Bore Type: Big Bore
Bore Size: 89.00mm
Stroke: 70.00 mm

Package Includes:
1x Cylinder
1x Piston(Big Bore)
1x Piston Ring Set
1x Wristpin
1x Circlip(2)
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x Chain Tensioner Gasket
1x Cylinder Head Valve Cover


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: 29330077670

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4.2 ★★★★★
Based on 16 reviews
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Product Reviews
A
Amazon Customer
Chelsea, US
★★★★★ 3
Standard Comforter. Thin Scratchy Sheets
Color: Dark Green, Size: Queen
This is an ok set for the price. I’m mostly using the comforter for a guest room. It’s a light-medium thickness. The color and size are true to description. The sheets that come with the set are very thin and not as soft as the comforter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
C
Customer Review
Los Angeles, US
★★★★★ 4
Comforter is nice, sheets are alright. Color is true!
Color: Burnt Orange, Size: Queen
This is a decent comforter set. The actual comforter isn’t too heavy, and would be perfect spring through fall in the Midwest. It’s a true queen size fit and the burnt orange color looks as it does in the photos. I ordered these before it mentioned they’re polyester. They definitely don’t feel as breathable as cotton sheets but as far polyester goes, they feel soft. The sheets wrinkle easily but the comforter feels durable. If you’re looking for an affordable sheet set and you’re cool with polyester, this is a good option. Also of note is that 2 of the pillow cases have a little extra fabric on the outer rim to look more “decorative.”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
V
Vmazon
Los Angeles, US
★★★★★ 5
Comfortable and Attractive Bedding Set That Offers Great Value
Color: Pink, Size: Queen
This queen bedding set is a nice combination of comfort and style. The pink color looks beautiful, and the textured comforter gives the bed a cozy, modern appearance. The sheets feel soft and comfortable, while the comforter is lightweight yet provides enough warmth for a restful night’s sleep. I appreciate that the set includes everything needed for a complete bedding setup, making it a convenient option. It’s also easy to care for and holds its appearance well after washing. While it may not have the feel of a premium luxury set, for the price it’s not bad at all and offers solid value. Overall, it’s a great choice for anyone looking for an affordable and attractive bedding set.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
JLN
Port Orchard, US
★★★★★ 5
Lightweight, very smooth and comfortable comforter sheet set an a very attractive price
Color: Ivory, Size: Queen, Color: Ivory, Size: Queen
Such a well priced, attractive bed in a bag (comforter and sheet set) with the most lightweight comforter I have ever come across that is not a down comforter. This one is filled with 100% polyester with a 100% microfiber exterior. The sheets are called microfiber, which I am sometimes not a fan of as sometimes they feel too stretchy and hot. However, these feel good, and almost more like a smooth percale. It’s nice to the touch. Color is attractive in a clean ivory color. Going back to the comforter, I love the lightness of natural down, but somehow I have developed a sensitivity to the feathers which make me sneeze. This one can easily be thrown into the washer and dryer and feels equivalently light as my down comforters. It weighs in at slightly over a pound (though I could only carry it onto the scale) and I absolutely love the lightness of it. I did wash it in the washer and dried it in a dryer on normal heat. Came out with no wrinkles and very fluffy. Five stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
L
Lenta Bear
Cuba, US
★★★★★ 4
Nice Comforter, Thin Sheets
Color: Blue, Size: Queen, Color: Blue, Size: Queen
I bought this comforter set for my guest bedroom, and the price was great. It’s really pretty and fits the bed perfectly. It includes a comforter, a sheet set with pillowcases, and two pillow shams. It arrived vacuum-sealed, when I opened it, I was impressed by how soft it felt—just right for a comforter. It seems like it will be warm yet cooling at the same time, and I love its thickness. The only downside was the sheet set. While the comforter is fluffy and cozy, the sheets felt cheap—very thin—and I prefer them thicker. They’re labeled 100% polyester but are just too thin for my taste. If you’re not picky about sheets, this set would be perfect. They are soft, just not thick enough. Overall, I really like the comforter, but I’ll use my own sheets because of the thinness of the included ones. I would have given it five, but the sheets bring it down to four.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026

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