Cometic 98-99 Yamaha YZ400F 92MM Bore Top End Kit

Cometic 98-99 Yamaha YZ400F 92MM Bore Top End Kit

Marsoni

M251S

$49.52

Get it in 3 business days with 1 day shipping. Friday, May 29

Cometic 98-99 Yamaha YZ400F 92MM Bore Top End KitToday's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles,

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Your Cometic 98-99 Yamaha YZ400F 92MM Bore Top End Kit orders ship within 1-2 business days.

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Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I am extremely satisfied with this product! It worked even better than I expected. The plastic on my car looks like new again—deep, rich color and a nice clean finish. The application process was simple and quick, and a little product goes a long way. I also love how long-lasting the results are. After several washes, it still looks great and provides solid protection. Definitely a high-quality product that delivers on its promises. I highly recommend it 100% to anyone looking to restore and protect their car’s plastic surfaces!

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Reviewed in the United States on April 13, 2026

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charles titsworth

Grantham, US

★★★★★ 5

Good product

Number of Items: 1

This stuff works really well. A little goes a long way

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Reviewed in the United States on May 26, 2026

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Walt D

Battle Creek, US

★★★★★ 5

Works perfect. My trim looks brand new again.

Number of Items: 2

This product worked great. I love the finished look. It was definitely worth the money and didn't take long to apply. I recommend to everyone looking to bring back your black trim to original.

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Reviewed in the United States on April 7, 2026

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Stacey Hopkins

Pawtucket, US

★★★★★ 5

Trim rejuvenator.

Number of Items: 1, Number of Items: 1

This product works! One application made my trim look brand new!

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Reviewed in the United States on April 18, 2026

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