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 Jul 26 - Jul 31

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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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4.8 ★★★★★
Based on 17 reviews
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Product Reviews
L
Lorraine
San Leandro, US
★★★★★ 4
Smooth, Stable, and Perfect for Flexible Spaces
Size: 88''W-4 Panel, Color: Grey, Size: 88''W-4 Panel, Color: Grey
This room divider is incredibly easy to move thanks to its industrial-grade silent casters. It glides smoothly across different floor types with just one hand and without any noise, while the built-in wheel locks keep it firmly in place once positioned, no slipping or unwanted movement. The base with reinforced steel feet adds impressive stability, preventing wobbling even in busy or high-traffic areas. I also love the foldable design, which makes storage effortless when it’s not in use. It folds down compactly and fits neatly into small spaces. I gave only 4 stars because I'm not crazy about the color of the fabric. Otherwise this is a very functional way to separate areas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
K
K
Cuba, US
★★★★★ 5
easy to put together, stable and blocks out unwanted eyes.
Size: 88''W-4 Panel, Color: Grey
If you live in a high rise building, or where there is lots of foot traffic and can see in your windows, this is a must have. It's portable, can fold down one or two walls and easy to move around. Put together once, and block out light and eyes while tall enough to see over. You can fold it up along the wall, and use it to block out the blinds or light when using a projector so that it's darker. You can use it to partician the room if you share one, and separate your pile of junk from your room so you don't look at it, can take quite a bit of towel weight and clothes and doesn't tip over. Sturdy bottom metal and easy to put together. I got the grey one, and glad I did. I use it everyday and is part of my room decor. I love it, and after using it for a few months it's quite durable. The quality is there for sure. A tad pricey, but worth it. Must have for a private person.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
K
KKat 10
Los Angeles, US
★★★★★ 5
Well made dividers.
Size: 88''W-4 Panel, Color: Grey
Very durable and stable. Once positioned, they stay upright and firm and don't wobble around. Good materials on both the panels and the frame that supports it. Great for any partitioning needs and a fair price for the quality you receive. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2025
M
Verified Purchase
Martha
Lowell, US
★★★★★ 1
No se usó, llego incompleto
Size: 88''W-4 Panel, Color: Beige
Lo devolví, llego incompleto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
R
Verified Purchase
raggmopp
Cuba, US
★★★★★ 5
Great quality, very versatile
Size: 6 Panel-132‘’Wide, Color: Beige, Size: 6 Panel-132‘’Wide, Color: Beige
I'm very pleased with this item. It was not complicated to assemble but some items required dexterity and strength. The fabric panels are nice and tight and that's partly why it's a little hard to get that final screw in. I'm very pleased with the legs and the wheels. The metal components are nicely finished and feel substantial and endurable. I can easily fold this so many different ways… I can minimize the number of panels that are seen if desired and it can be straight or accordion. It's very stable which was hugely important to me because I'm fostering many many cats. It's not cheap looking and the light color fabric allows enough light to pass through that it doesn't darken the room substantially. I think the price was very reasonable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026

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