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Athena Big Bore Gaskets
Athena Big Bore Gaskets

$ 16.99 - $ 98.99
15% Off - Save up to $16.96

Select your bike to see if this big bore gaskets fits
Description See Also: 3 Reviews 5 Questions Fitment Part Numbers
Item #ATH0005

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3 Reviews
5 out of 5 stars
5 Star   3 4 Star   0 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Verified Purchaser
North Carolina
Durability 4/5 Ease of Installation 4/5 Performance 4/5 Power 4/5 Style 4/5
The right gaskets for the job

If you have a Big Bore Athena kit installed on your bike, this is the only gasket set you should purchase. It is quite pricey for 2 gaskets, 1 copper exhaust gasket, & a chain tensioner gasket (CRF450X), but that is the price you pay when you go bigger!

Verified Purchaser
Broken Arrow, OK, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Athena Big bore gasket kit

A little pricey but was delivered on time and had everything needed to get back to riding again!!

Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5

5 Questions
Answered:   3
Not Yet:   2
Q: Does this kit for a 2005 yz125 big bore 144cc come with oring head gaskets or a flat head gasket  
Over 6 months ago
Top 10
Over 6 months ago
A: The head gaskets are o-ring. The base is made of paper material.
Q: Cbr 125 with athena big bore. head gasket?
2 years ago
I have a race cbr 125 with athena big bore which i am doing head mods and need a head gasket to re build. Do u supply these? If so the price please. Thanx
Q: Is this the right kit for my wr450
2 years ago
Have the 478 big bore but the supplied head gasket gets clipped by the piston will this happen? Also what is included in the kit
Top 1000 Contributor
Q: Is the cam chain tensioner the same gasket as oem?
Over 8 years ago
I have an 05 CRF250R with the 280 big bore kit. my cam tensioner is leaking engien oil because the gasket went bad. I was wondering if i could just buy the OEM honda one and put that on. will the OEM fit on the big bore one?
MotoSport Staff Expert
Over 8 years ago
A: you can use oem gasket on that big bore kit
Q: Would this be what I need to replace the rings?
Over 9 years ago
I have a 280 Athena kit on my 04 CRF250R. I am having some work done to it and they told me I needed to replace the rings. It's at a Honda shop and this isnt a Honda part. Would these gasket kit be what I need if I need to replace the rings??
Expert MotoSport Staff
Over 9 years ago
A: This actually the gaskets for the 280cc kit, if you need the rings unfortunately you will have to purchase the piston, which will include the rings:

See all bikes that this part fits...

See Fitments
# Part Numbers
Product Variant Manufacturer Part #
164cc P400210160019
280cc P400210160
490cc P400210160
490cc P400210160001
130cc N/A
280cc P400270160059
280cc P400270160003
80cc P400270160001
80cc N/A
290cc N/A
490cc P400250160003
490cc P400250160012
490cc P400510160008
435cc P400510160002
290cc P400510160004
290cc P400510160010
290cc P400510160
490cc P400510160006
490cc P400510160011
490cc P400510160013
490cc P400210160014
480cc P400210160005
290cc N/A
478cc P400485160009
144cc P400485160014
293cc P400485160183
105cc/112cc P400485160023
290cc P400485160007
478cc P400485160013
144cc P400250160008
144cc P400485160015