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Wiseco Piston Kit
Our price: $69.99 – $177.99
MSRP: $88.19 - $222.00 - You save up to $44.01 (20% off)
View Product DetailsSee all machines the Wiseco Piston Kit fits.
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"Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."
-Dan Thomas, CEO and Founder
Returns
We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.
Warranties
We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.
Have questions?
Live chat: Click here (Leave email if after hours)
Email:sales@rockymountainatv.com
Call us: 1 800 336-5437
7am-7pm Mon-Fri 8am-4pm Sat (Mountain Standard Time)
- Lightweight forging for instant throttle response and maximum torque
- Computer engineered piston skirt profiles provide minimal cylinder wall friction
- Piston kit includes piston, rings, wristpin and circlips
Wiseco Piston Kit Reviews
Your review could win you a $100 or $500 gift card! 
Each review submitted enters you into a $100 gift card monthly drawing, and a $500 gift card quarterly drawing!
0 of 0 people found this review helpful.
Good
kimberly in WV – Machine this part was bought for: 2005 HONDA TRX 450R
Comments On Feb 13, 2015:Good product
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0 of 0 people found this review helpful.
Great Kit
Abel in CA – Machine this part was bought for: 2003 KAWASAKI KLX125L
Comments On Feb 13, 2015:Damn good kit, arrived fast and installed easily.
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Wiseco Piston Kit
Dillon in WV – Machine this part was bought for: 1988 HONDA TRX 250R FOURTRAX
Comments On Feb 03, 2015:Wiseco makes a very durable and reliable piston and ring kits, we have used them in a lot of our customers rebuilds all with great results.All the clearances are always perfect, and rings only need minimal filling. Just wish wiseco would drill the holes in the pistons for some of the 2-strokes.
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0 of 0 people found this review helpful.
Good piston
nathan in VA – Machine this part was bought for: 2011 KTM 450 SX-F
Comments On Feb 03, 2015:This is a very good quality piston. But if you have a stock bore size this will not fit your application. I ride a ktm so I can only speak for that app. You will have to find a piston with a 96.94-96.96mm piston and this is a 97.00mm.
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Good stuff!
Jeremy in NV – Machine this part was bought for: 2004 KAWASAKI KX500
Comments On Jan 26, 2015:Product went right in with no issues. Has 30 hours on it now and still just as good as it was the day I put it in. Highly recommend this product!
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0 of 0 people found this review helpful.
It's a high quality part
Hunter in FL – Machine this part was bought for: 2001 YAMAHA YZ250F
Comments On Jan 18, 2015:I've only got about 3 hours on the piston so far, but it's doing its job well. Wiseco has always has a very good reputation for making quality products. It almost looks too pretty to put inside the engine where no one can see it lol. Wiseco is the only piston that will go in my bikes because their quality and engineering is second to none.
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Sweet Piston!
Bart in IL – Machine this part was bought for: 2000 YAMAHA YZ250
Comments On Jan 13, 2015:As always, super fast shipping from our friends at Rocky Mountain! Wiseco Piston was more than expected, exact fitment, piston rings barely needed any adjustment, can't wait to start her up! Almost did not want to install it cuz it looked so good!
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Awesome parts
tyson in OR – Machine this part was bought for: 2001 HONDA CR250R
Comments On Jan 01, 2015:Great piston. just so anyone knows, for a Honda does not come with bearing. Wish it would say or just come with one
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strong piston
D in OH – Machine this part was bought for: 2002 SUZUKI RM125
Comments On Dec 30, 2014:Strong piston, durable in detonating/lean conditions. Only wish wiseco drilled holes in the pistons.
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great price for a great product
Richard in WA – Machine this part was bought for: 2005 SUZUKI RMZ450
Comments On Dec 22, 2014:Bought this to rebuild the top end, worked out perfect bike runs better than new thanks to RM.
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If you cannot see the videos you may need to upgrade Adobe Flash Player. 
Instructional
Four-Stroke Top End Rebuild (Part 2)
How to check piston ring end gap
How To Hone A Cylinder
How To Rebuild A Two Stroke Top End
How To Rebuild The Top End On A KTM RFS Motor (Part 1)
How to rebuild the top end on a motorcycle or atv (Part 1)
How to rebuild the top end on a motorcycle or atv (Part 2)
