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Athena Big Bore Piston
Athena Big Bore Piston

$75.99 - $221.99
15% Off - Save up to $38.96

Description See Also: 1 Review 11 Questions Fitment Part Numbers
Item #ATH0001

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1 Review
5 out of 5 stars
5 Star   1 4 Star   0 3 Star   0 2 Star   0 1 Star   0
All Reviews
Yamahayz85
Over 9 months ago Youngstown, OH
Durability5/5Ease of Installation4/5Performance5/5Power5/5Style5/5
Awesome quality

I got this piston last winter and I race harescramble and this piston held up to the abuse with little scoring. Great piston.

11 Questions
Answered:   8
Not Yet:   3
Justin
Q: I have a 2000 yz 125 bored to 144cc , i just pulled a prolite wiseco piston outta there but cant find the same one online the prolite is 58-x54.5 , would this work?
2 months 18 days ago
Michael
Top 10
2 months 18 days ago
A: This is labeled 144cc so it is definitely that size. Double check your cylinder size for correct fitment but I believe you can use this one for your engine.
Steve Mosley
Q: My cylinder measure 3 1/16 inch I need to know what size piston I need
3 months 20 days ago
marvin
Q: Im looking for a s4f10000007b piston, not sure if this was an a or b piston?
1 year ago
Thumbs
Top 10
1 year ago
A: THat is a B piston. The part number will end in an A or B to separate the two pistons.
Teclo
Q: Klx110
1 year 8 months ago
KLX110 is my bike will this replace the stock piston or do I need to have the cylinder bored
David
Top 10 Contributor
1 year 8 months ago
A: You need the Athena Big Bore Cylinder Kit for this piston to work.
mxrider130
Q: Is this the size of piston i need for my yz250F?
2 years 7 months ago
i used a set of mics to measure the piston and i got 3.250 so that reads in between 82mm - 83mm. and the other calculation was 3.2283.
Chris
Q: Is this a genuine or replica Athena part? is this the S4F08300001A or B? Thanks.
2 years 8 months ago
yz144rider
Q: Can i replace my 2001 yz144 athena piston with this one when it wheres out
Over 3 years ago
MotoSportExpert
MotoSport Staff Expert
Over 3 years 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 piston 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.
Scotty
Q: Can you buy rings, wrist pin and circlips for the piston
Over 3 years ago
MotoSportExpert
MotoSport Staff Expert
Over 3 years ago
A: Please call one of our sales professionals to inquire about special orders and availability.
Dirt Bike / ATV: 1-888-676-8853
Adam
Q: 2 or 4 stroke?
Over 3 years ago
My search is for a 03 yz250 two stroke, but pictures only are showing a four stroke piston. Is it just a generic photo?
MotoSportExpert
MotoSport Staff Expert
Over 3 years ago
A: The image is a generic image supplied by the manufacturer for reference only. It may not be displaying the exact part for your bike. 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 piston 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.
Jake
Q: What is the manufacturer's part number for this piston?
Over 4 years ago
MotoSportExpert
Expert MotoSport Staff
Over 4 years ago
A: The Athena part number for this Athena Big Bore Piston for your 2007 Yamaha YZ250F would be S4F08300001A. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
1 - 10 of 11
Fitment

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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
164cc S4F069000030
280cc S4F0820000
280cc S4F08200003A
490cc S4F100000180
490cc S4F10000007A
130cc S4C05700001A
280cc S4F08000004A
80cc S4C05000002A
144cc S4C05800002A
290cc S4F08300007A
80cc S4C05000001A
290cc S4F08300003A
490cc S4F10000011A
490cc S4F1000001
435cc S4F09400002A
290cc S4F0830000
490cc S4F10000012A
490cc S4F100000170
480cc S4F09700010A
290cc S4F08300009A
478cc S4F09800006A
144cc S4C05800001A
293cc S4F07200006A
105cc/112cc S4F05300002A
290cc S4F08300008A
290cc S4F08300001A
478cc S4F09800005A
490cc S4F100000200
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