SKU: 70622104438

Yamaha 2009-2021 YFZ450R / 2010-2011 YFZ450X Top End Rebuild Kit Cylinder Piston Gasket

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Description

Yamaha 2009-2021 YFZ450R / 2010-2011 YFZ450X Top End Rebuild Kit Cylinder Piston GasketTop End Rebuild Kit Cylinder Piston Gasket Fit for Yamaha 2009 2021 YFZ450R 2010 2011 YFZ450X Features: If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Piston is anodized for superior heat resistance and longer lifespan. The gaskets use performance

Top End Rebuild Kit Cylinder Piston Gasket Fit for Yamaha 2009-2021 YFZ450R / 2010-2011 YFZ450X 

Features:
If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Piston 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 size - 95.00mm bore x 63.40mm stroke, 20mm steel piston pin.
This kit is excellent as a low-cost replacement for defects in the original cylinder.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Piston Material: Forged Aluminum
Actual Displacement: 449cc
Bore Type: Stanard Bore
Bore Size: STD 95.00mm
Stroke: 63.40mm
Pin Length: 48mm
Pin Diameter: 20mm

Replacement Part Number:
Cylinder: 2S2-11311-10-00, 2S2-11311-11-00
Cylinder Base Gasket: 2S2-11351-00-00
Cylinder Head Gasket: 2S2-11181-00-00
Chain Tensioner Gasket: 4FM-12213-00-00
Exhaust Gasket: 3VD-14613-01-00
Piston(Std): 5TG-11631-11-00, 5TG-11631-12-00
Pin, piston: 5TG-11633-10-00
Piston Ring Set(Std): 5TG-11603-00-00
Circlip, piston: 93450-22027-00

Fits Models:
(fits YFZ450R and YFZ450X FUEL INJECTED models ONLY, will NOT fit YFZ450 CARBURETED MODEL Models.)
Fit for Yamaha YFZ450R 2009 - 2021
Fit for Yamaha YFZ450X 2010 - 2011

Also fits 06-09 YZ450F & 07-11 WR450F off-road, only the cylinder and gasket will fit, pistion kit will NOT fit,
cause our wristpin is 20mm, fits YFZ450, and YZ450F & WR450F required 18mm wristpin, you can use your original piston kit, please do not purchase if you can not accept it.

Fit for Yamaha YZ450F 2006-2009 (Only cylinder and gasket kit will fit.)
Fit for Yamaha WR450F 2007-2009/2011 (Only cylinder and gasket kit will fit.)

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

Package Includes:
1x 95mm Cylinder
1x Piston(STD)
1x Piston Ring Set
1x 20mm Wristpin
2x Circlips
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x Chain Tensioner Gasket
1x Exhaust Gasket

Note:
The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer fits.

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: 70622104438

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4.4 ★★★★★
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marichal
Port Orchard, US
★★★★★ 5
Excellent tv
Style: 2026 Model, Size: 55-Inch
Great TV. Fantastic deep color. Extra, with built-in Fire Stick. So easy to set up with this. Sound is superb. Overall a great tv at this price.
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Reviewed in the United States on April 25, 2026
T
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Terrible!
Pawtucket, US
★★★★★ 1
Not worth the money
Style: 2026 Model, Size: 55-Inch
Nothing I wanted. Totally disappointed.
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Reviewed in the United States on April 22, 2026
T
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The Right Tool
Draper, US
★★★★★ 5
Setup Is SOO Easy - Compact Size - Intuitive - Automatic Device Connections
Size: 1 add-on extender, Configuration: without eero Plus, Size: 1 add-on extender, Configuration: without eero Plus
We were hoping to solve an issue we were having with our Wifi setup which prevented us from reliably connection to our two alley cameras and interior garage camera/door opener. These 3 devices were just a bit too far from our Wifi to get a strong connection to stream a video feed, though strong enough to stay connected. However, after install this extender, the signal is super strong and connecting to these cameras is much faster. Setup and usage was also SUPER simple. Since we are already running an Eero setup with 2 routers, install was as simple as plugging the device in, opening the app and clicking through just a couple buttons to start the automatic process for building out the network. Best of all, each of the alley devices are automatically connecting to the extender without needing to manually assign them, so convenient! If you're concerned about compatibility, we had no issues running this with the Eero 6e routers found here https://amzn.to/41kfEv5 I can't speak to all the compatible options but the Eero 6 and 6e routers are a sure bet. So for us, the coverage and stability of the network is now excellent across all devices and we finally have proper functionality of all our connected devices.
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Reviewed in the United States on March 22, 2026
H
Verified Purchase
Heather
Charlottesville, US
★★★★★ 5
So Far So Good
Size: 1 router, Configuration: without eero Plus
My modem crashed a few months ago and Spectrum had to replace the system. I learned during that installation that I was being charged an extra $10/month for my router. Didn't realize that for 5 years, I was only "renting" my router. Which has been an absolute waste of $600. During the initial install, I was not informed of that and I have never seen an actual paper statement for my bill breaking down my plan. My first Spectrum router was very spotty towards the back of my house (1050sq ft. house) and the new router which was supposed to be an upgrade to Wi-Fi 6, was even worse. My phone would lose connection to the new router on my front porch which is 5 feet away from my router. I initially thought that all I needed was an extender and that is how the Spectrum guy and I got on the subject because I am NOT very tech savvy. I had already been looking at the Eero router and he recommended it. I found the one that is compatible to my internet plan (400Mbps) and went for it while it was on sale. This router is very well packaged. Very pretty packaging, too. OMG!! Super super easy to install. Your grandparents could install this. The only thing that I recommend is being sure of your password which you should be able to find in your providers app (at least I can with Spectrum). If you do happen to forget one digit to your password, and you accidentally change your password, you will have to reconnect each device individually. This router was compatible with my internet plan and provider. I'm very happy with the quality, signal strength, functionality. It has been very reliable for the three days that I have had it. I have not lost signal once. Not even on my front porch. My phone is now showing that I am connected to Wi-Fi 6 when before, it kept dropping it and dropping back down to 5G. Even with the 5G, it would buffer really bad. I got this on sale and I do think that the price is competitive for how well this router performs. The app is super easy to navigate and every device that is linked to your router is located in the app. You can monitor what devices are connecting to your router. I do think that this Eero router was the upgrade to my internet plan. I would recommend saving yourself the cost to "rent" your router through your service provider and upgrading to the Eero router. This will pay for itself in 6 months now that I am not "renting" my router.
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Reviewed in the United States on November 19, 2025
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Idin Javadi
Carnegie, US
★★★★★ 5
Better than most!
Size: 1 add-on extender, Configuration: without eero Plus
I found that this extender works better than most in that it seamlessly boosts the signal without having to switch networks. The set up was super simple and easy, just plug and play basically. Does exactly as advertised, only about a 30% reduction in speed.
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Reviewed in the United States on May 16, 2026

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