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Cometic C3057-EST Top End Gasket Kit 79mm Bore for Yamaha

(2001-2013 Yamaha YZ250F; 2001-2009, 2011-2013 Yamaha WR250F; 2013-2015 Gas Gas EC 250F)

Part of: Cometic Top End Gasket Kit Bore Honda

Other options in this family: Cometic C9147 Cometic C3054-EST Cometic C3267-EST Cometic C7678 Cometic C7393

Manufacturer

Picture for manufacturer Cometic

Part Number

C3057-EST
13 reviews
Sale Price

$69.28

3 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Cometic C3057-EST is a complete top end gasket kit designed for Yamaha engines with a 79mm bore. This comprehensive kit utilizes Cometic's advanced Extreme Sealing Technology (EST) to deliver superior performance and reliability in demanding applications.

Extreme Sealing Technology (EST):

  • Embossed stainless steel head, base, and rocker gaskets with proprietary rubber coating
  • Advanced material draws heat away from the combustion ring for even heat dissipation
  • Eliminates hot spots to prevent gasket failure and ensure long-lasting seals
  • Superior sealing performance compared to conventional gasket materials

Complete Top End Rebuild Kit:

  • Includes all necessary gaskets, seals, and O-rings for a complete top end rebuild
  • Covers everything from the cylinder base upward
  • Precision-engineered for 79mm bore specifications
  • Designed specifically for Yamaha applications

This kit provides everything needed for a professional-quality top end rebuild, ensuring proper sealing and optimal engine performance. The EST technology offers race-proven reliability for both performance and stock rebuilds.

Products specifications

Fits

2001-2013 Yamaha YZ250F; 2001-2009, 2011-2013 Yamaha WR250F; 2013-2015 Gas Gas EC 250F

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Package Quantity

18

Great prices, fast shipping and kept me informed with several status e-mails. What more could you want.

Great Thanks

Great products and great prices all around.....just took lil longer than expected to process and ship

This company had the VERY best price on the product that I was seeking. The check out process was so simple and the order shipped the next day! We will be checking them out for all our product needs!

easy to find and purchase the item i was looking for

Very smooth

This was the first time I used them and the shipping was fast and the price was great would recommend them to anyone looking to buy car parts online.

great price, wayyyy lower than any other companies, even beat the ebay brands prices for name brand parts. this is my 4th or 5th visit, I've lost count.

Very pleased with all aspects of this transaction.

Great prices.

best price by far

Great as always!!!

Great Company, fair prices and excellent web site.

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