Cometic Top End Gasket Kit

Cometic Top End Gasket Kit
Cometic Top End Gasket Kit

$16.99 - $81.99

Select your bike to see if this gasket kit fits
  • Description
  • 128 Reviews
  • 44 Questions
  • Fitment
Description Item #CMT0001

State-of-the-art gaskets is what Cometic has been doing since its inception in 1989. This comes from their dedication to constructing gaskets for the most demanding race circuits like AMA and NASCAR. Today's lightweight engines are producing more horsepower, higher cylinder pressure, clamp load and extreme temperatures. Cometic's commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance.

Cometic meets the needs of each specific gasket by using materials to match. Even the basic top end gasket kit features different materials for each gasket. The head gasket is constructed from non-asbestos, flexible graphite that is laminated to a stainless steel core. The manifold and base gaskets are constructed from non-asbestos nitride rubber-bound fiber. Cometic also includes copper gaskets where needed.

Cometic designs and builds their gaskets in the U.S.A.

Note: Images are for reference only, actual item may vary based on contents and fitment.


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128 Reviews
4.2 out of 5 stars
5 Star   102 4 Star   16 3 Star   9 2 Star   4 1 Star   17
Pittcrew
Top 500 Contributor Verified Purchaser
Pittsburgh
Durability   Ease of Installation   Performance   Power   Style  
Perfect kit.

I've used these kits on every bike I've had. Perfect fit & good quality. A must have when doing a 2 stroke top end.

CavemanBob173333333333333
Verified Purchaser
San Rafael, CA, USA
Durability   Ease of Installation   Performance   Power   Style  
Cometic top end gasket kit

Quality, durability, no headache installion & competively priced-this is a win win situation period

JoshBegera125
Verified Purchaser
Mims, Fl
Durability   Ease of Installation   Performance   Power   Style  
Great Gasket Kit!

Really great gasket kit. Fits perfect and is easy to install. They are definitely stronger than oem gaskets. Great product

Trent
Verified Purchaser
Newalla, Oklahoma City, OK 74857, USA
Durability   Ease of Installation   Performance   Power   Style  
Good quality set

Installed as advertised, everything fit and sealed.

OldandSlow
Southeast USA
Durability   Ease of Installation   Performance   Style  
Worked for me

Replaced top end in KX85. Everything lined up and fit as it should. Appear to be well made. Will buy again.

BookerRacing44
Verified Purchaser
Austin
Durability   Ease of Installation   Performance   Power   Style  

Exactly what I needed

Slowrider
Wisconsin, USA
Durability   Ease of Installation   Performance   Power   Style  
Just like O.E.M.

Parts shipped fast. Fit the same as factory parts One very satisfied customer

Jamo
Verified Purchaser
WV
Durability   Ease of Installation   Performance   Power   Style  
Cometic seals

These are some of the best I've used. Crush style washer with seal material on either side.

Motodad
Verified Purchaser Top 50 Contributor
Texas, USA
Durability   Ease of Installation   Performance   Power   Style  
PERFECT SEAL

I have always been a fan of OEM gaskets, I ordered the cometic kit and was very impressed. the quality was absolutely perfect, and performed flawless!!

Tang182
Verified Purchaser
Joshua
Durability   Ease of Installation   Performance   Power   Style  
Great product

Everything fit great

Nick
Verified Purchaser
Durability   Ease of Installation   Performance  
Even better than before.

Been my go to kit for years. It now comes with valve seals and o rings for radiator hose necks. Exhaust gasket is updated too. Everything you need.

MissPiggy
Verified Purchaser
Salt Lake City, UT, USA
Durability   Ease of Installation   Performance   Power   Style  
Seal it up.

Works very well, maintains your engines crucial seals.

nilly
Verified Purchaser
lake charles la.
Durability   Ease of Installation   Performance   Power   Style  
Weisco top end kit

bike runs better more power and runs smoother

Verified Purchaser
Average

Only came with one base gasket and I ended up needing a thicker one so that was a pain but everything else was OK.

Brian
Verified Purchaser
Mohawk, TN 37810, USA
Durability   Ease of Installation   Performance   Power   Style  
Easy To Change and Hold Up Well

I have not had a failure due to the gaskets after using them for two seasons. I really like the way the base gasket is so easy to remove when changing top ends. No scraping required........it just comes right off.

ski778
Bad

I bought this for my 07 yz 450f and the rivets in the head gasket didn't line up hitting the head caused it to leak everywhere. Going with stock

Nate
Verified Purchaser
San Antonio, TX 78258, USA
Durability   Ease of Installation   Performance   Power   Style  
Ehh

gasket didn't line up. on the head gasket where the coolant hole should be, there is just an "up" indicator that blocks the whole entire port. and also not sure if this is the case with all coolants, but don't use bell ray moot-chill coolant with theses gaskets, it breaks down the black paint/coating and it gets all in your calling system.

klewis13
Tennille, GA, USA
Durability   Ease of Installation   Performance   Power  
Great product

Good gaskets just need more info on whats in the pack might wanna buy xtra o rings the ktm kit didnt come with everything

motoracer529
Verified Purchaser
Parker, AZ, USA
Durability   Ease of Installation   Performance   Power   Style  
Great service

the only place I get all my parts

crf487
Verified Purchaser
Durability   Ease of Installation   Performance   Power   Style  
Have used these for years

Religiously use Cometic for top end, and OEM for lower gaskets, period. Has never failed and you stick with what works.

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44 Questions
Answered:   44
Not Yet:   0
Clax
Q: Would it fit my bike?
2 days 17 hours ago
MotoSportExpert
Expert MotoSport Staff
1 day 23 hours ago
A: Yes. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
273white
Q: I have a 98 yz125 will this gasket work with an athena cylinder?
14 days ago
MotoSportExpert
MotoSport Staff Expert
14 days ago
A: Yes if its a stock bore Athena Cylinder this Cometic Top End Gasket Kit will work great.
Brentox
Location: Victor, ID 83455, USA
Q: 2013 TE300: What is the thickness of the base gasket?
2 months 14 days ago
The 2013 KTM 300xcw engine parts will fit this bike too, right?
Motodad
Top 100 Contributor Top 50 Contributor
2 months 11 days ago Location: Texas
A: Different gaskets will give a different SQUISH. Using the Manufactures Tools you can set the squish based on base gasket thickness. Husqvarna or KTM tools will work. Check your Service manual for Tool part numbers.
Jamesrides
Location: Blue Grass, IA 52726, USA
Q: A buddy of mine is buying a crf150r head gasket?
2 months 20 days ago
Hes buying a 08 crf150r that needs a new head gasket and wondering is there one in this kit or no
Motodad
Top 50 Contributor Top 100 Contributor
2 months 11 days ago Location: Texas
A: Yes this kit will include all you need. It is a great kit!!
Rubins93
Q: Hey, I have a honda cr125r bigbore, would it this fit?
Over 7 months ago
MotoSportExpert
MotoSport Staff Expert
Over 7 months ago
A: No, this would be for a stock bore. If one is available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability.
Dirt Bike: 1-888-676-8853
Tyler
Location: Toledo, OH, USA
Q: What are the exact gaskets included for a 2001 yamaha yz 80?
Over 9 months ago
MotoSportExpert
Expert MotoSport Staff
Over 9 months ago
A: The Cometic Top End Gasket Kit for your 2001 Yamaha YZ80 (C7137) would include:
1 - Outer Head O-Ring
1 - Inner Head O-Ring
1 - Base Gasket
1 - Exhaust O-Ring
Tyler
Location: Toledo, OH, USA
Q: I have a 2001 yz 80 regular bore will this kit fit perftect and what all does it come with for my bike?
Over 9 months ago
MotoSportExpert
MotoSport Staff Expert
Over 9 months ago
A: Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.

Top End Kit C7137 includes:

1 - Outer Head O-Ring
1 - Inner Head O-Ring
1 - Base Gasket
1 - Exhaust O-Ring
Berk451
Q: What all comes with the Cometic top end kit for a 05 kx250f?
Over 10 months ago
MotoSportExpert
Expert MotoSport Staff
Over 10 months ago
A: The Cometic Top End Gasket Kit (C3054-EST) for your 2005 Kawasaki KX250F would include the following:
1 - Head Gasket
1 - Base Gasket
1 - Exhaust Gasket
1 - Cam Chain Tensioner O-Ring
4 - Valve Stem Seals
steve
Q: Does this kit fit an xr50 with an 88cc big bore kit?
1 year ago
MotoSportExpert
Expert MotoSport Staff
1 year ago
A: This would be for the stock bore cylinder, you would want to get one for the big bore. If its available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability.
Dirt Bike / ATV: 1-888-676-8853
Rittiz
Location: South Africa
Q: Just double checking, will this gasket set fit my 1994 Suzuki DR350 S have got some major oil leaks through cylinder head cover,?
1 year 2 months ago
As well as valve inspections cap O-Rings for the dr350 s
MotoSportExpert
MotoSport Staff Expert
1 year 2 months ago
A: Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Note: All products sold on Motosport.com are for US models only. We unfortunately do not have product fitment for non-us models.
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Fitment
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