Wiseco Pro-Lite 4-Stroke Piston

Wiseco Pro-Lite 4-Stroke Piston
Wiseco Pro-Lite 4-Stroke Piston

$129.99 - $199.99
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  • Description
  • 13 Reviews
  • 8 Questions
  • Fitment
Description Item #WCO000Q

Wiseco leads the performance aftermarket by producing the highest quality forged pistons in the U.S.A. Wiseco is unique because they forge all of their own pistons in-house, and produce all of their own forge tooling in the U.S.A. This allows Wiseco to control all aspects of their manufacturing process from raw bar to skirt coating on the finished parts.

  • Much stronger than stock. Forged using the highest quality materials available resulting in a piston that provides excellent performance and durability.
  • Tight tolerances for quiet running. Featuring a race-ready dome finish with smooth edges for improved combustion flow.
  • More hours with peak performance between piston changes. The rings, wrist pin, and circlips are manufactured by Wiseco under their strict quality standards to make sure every piston kit fits correctly, ensuring top performance and long-lasting durability are achieved.
  • The Wiseco Pro-Lite Piston includes: piston, ring(s), wrist pin, and circlips.

Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties, and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio, and maximize performance.

Note: Image is for reference ONLY, actual contents will vary based on fitment.


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13 Reviews
5.0 out of 5 stars
5 Star   13 4 Star   1 3 Star   0 2 Star   0 1 Star   0
Yamaha736
Verified Purchaser
Morgantown, WV, USA
Durability   Ease of Installation   Performance   Power   Style  
A good durable piston

It is a good durable piston and you get what you ask for. The only problem I have is that it doesn't come with the gaskets needed when you replace your old piston.

Trent
Verified Purchaser
Newalla, Oklahoma City, OK 74857, USA
Durability   Ease of Installation   Performance   Power   Style  
Great Product

I have used wiseco pistons in a number of bikes over the years everything from a RM65, YZ85, CRF250R and then this particular time in my sons 2012 YZ250F. His bike was way overdue for a new topend! Usually I have zero problems with the install, but this one was a little different. The circle clips were very difficult to install compared to previous installs, but with some patients and small set of needle nose pliers I got them in, what made it a bit frustrating was when I looked at the video on wiseco installing them the guy snapped them in with his thumbs like it was nothing. That was not the case with ours? Not sure if the guy had super thumbs or if ours were a stiffer clip? Either way, with some patients we got them installed. Second the center oil ring did not want to seat, it took several attempts to no avail to get it to stay in the groove as we put the cylinder back on, ended up having to use a different center oil ring. Not sure if we damaged it on our first install attempt or it was bad from the beginning? Again I have installed many of these and its the first time I have had problems with one. As for performance? Wow what a difference! The bike was way overdue for a freshen up and man did this new piston/rings make it come alive, my son felt like he had a new bike again!

Morgan
Verified Purchaser
Durability   Ease of Installation   Performance   Power   Style  

Awesome product and even better service!

Daveo
Verified Purchaser
El Segundo
Durability   Ease of Installation   Performance   Power   Style  
Braaaap!!!

Motosport made it quick and easy to get the Braaaap!!!!! back in my 450!!

This wiseco kit was an excellent upgrade for my bike on the budget! And I was also lucky to enough to get the wiseco discontinued cams that Motosport actually had in stock!

Wiseco Pro-Lite 4-Stroke Piston
Wiseco Pro-Lite 4-Stroke Piston
Eddie63
Verified Purchaser
Sicklerville, Winslow Township, NJ 08081, USA
Durability   Ease of Installation   Performance   Power   Style  
Great product!

Great product!! Can never go wrong with Weisco! Package came in in great shape, and the sleeve they put the piston in was very nice to protect it as a extra measure. Would recommend anyone I know to buy this product!

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

Perfect kit, everything you need, all inclusive! A little power gain due to reduced weight of the piston compared to OEM

Motoparty
MotoSport Staff
Durability   Ease of Installation   Performance   Power   Style  
Love em!

I run the Wiseco pistons in all of my bikes and I've never had an issue. just stuck one in my newer crf450r and my old CRF450r has 65 hours on the Wiseco piston in it and still runs strong. These are a great aftermarket replacement option.

Zach
Savannah, GA, USA
Durability   Ease of Installation   Performance   Power   Style  
First time rebuild on yz450f high quality piston

I purchased this piston for my first rebuild on my 09 yz450f , the piston looks and feels great , it even shipped in its own cloth bag , like a bottle of crown royal, but install was a breeze and has been running very very strong since then . great product , the bottom end is also wiseco.

Wiseco Pro-Lite 4-Stroke Piston
RobKX250F
United States
Durability   Ease of Installation   Performance   Power   Style  
2009 KX250F

Great piston, would recommend to anybody looking to rebuild their bike. It went together perfect. And gave my bike a lot more power. (60hours on old oem piston.)

Jordan
Verified Purchaser
Bristol, VA, USA
Durability   Ease of Installation   Performance   Power   Style  
Piston

Went in easy into a cylinder that had 2 pistons before it and not even honed once. Raced hard and still running strong.

race271
Verified Purchaser
Austin, TX
Durability   Ease of Installation   Performance   Power   Style  
Quality Product from Wiseco as Always

You tell right away from looking at the piston that it is high-quality stuff. It comes with all necessary rings, pin and clips, but of course it's always a good idea to grab a gasket kit to go along with it. There was nothing difficult about install and it all fit and worked as hoped. My crf250r is 7 years old (basically a dinosaur in terms of motocross), and still had the stock top end in it. Needless to say the piston added a huge breath of life into the bike, and it is running like it was fresh off the factory.

I highly recommend Wiseco pistons for anyone in the market - they are about as high quality as you can find, and much cheaper than some competitors.

Matt
Verified Purchaser
Wayne, IL
Durability   Ease of Installation   Performance   Power   Style  
Great as always

Installed in a 2005 YZ250F. Fix as expected, bike ran great, fantastic Wiseco product like always.

hondaracer744
hesperia, ca
Kicking yo

gone 5 dune sessons and 3 races on the same piston and still runing strong

1-13 of 13

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8 Questions
Answered:   8
Not Yet:   0
Tkaslly
Location: Ohio, USA
Q: What is the model number and compression ratio for a 2013 honda trx400x?
Over 7 months ago
MotoSportExpert
Expert MotoSport Staff
Over 7 months ago
A: This Wiseco Pro-Lite 4-Stroke Piston for your 2013 Honda TRX400x would be part number 4606M08500 and 10:1 compression ratio.
bubba
Location: PA
Q: What is the compression ratio of this piston for a 1994 yamaha warrior 350 and what gaskets come with the kit?
1 year 5 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 5 months ago
A: The Wiseco Pro-Lite standard bore Piston for your 1994 Yamaha Warrior 350 (4419M08300) would be 10.25:1 compression ratio. This would be for the piston kit only, no gaskets. The Cometic Top End Gasket Kit can be found below. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
hondo400ex
Location: Ohio, USA
Q: Will this fit my 01 honda 400ex?
1 year 8 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 8 months ago
A: Yes, the Wiseco Pro-Lite 4-Stroke Piston will fit your 2001 Honda TRX400EX (stock bore). Just be sure to correctly select the Year/Make/Model of your ATV before ordering so we can be sure to send you the correct piston for your ATV. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Motodad
Top 100 Contributor Top 250 Contributor Top 50 Contributor
4 months 3 days ago Location: Texas, USA
A: as long as you verify the OEM Bore size
zackry
Location: Moncks Corner, SC 29461, USA
Q: Will this be the right bore for my 2008 yz450f? and will there be a power difference between this piston and the stock yamaha piston?
1 year 10 months ago
just curious. I believe i need to change my piston but not sure.. i got a little smoke out my pipe and it takes a few kicks to start and not sure if its my jetting.. please help
MotoSportExpert
Top 50 Contributor Top 1 Contributor
1 year 9 months ago
A: The Wiseco Pro-Lite Piston kits are a high quality aftermarket replacement piston for most popular model bikes. They are offered in stock sizes, big bore sizes and optional compression ratios. The stock bore and stock compression for you 2008 YZ450F Yamaha is 95.00mm/ 12.5:1

Unfortunately we at Motosport.com are not able to give you repair advice. We highly suggest that you purchase an OEM service manual for your machine and refer to it to answer your repair questions. If you need more assistance, please consult a local repair shop to further assist you in your repairs. If you need parts to assist in your repairs, we are happy to assist you with your parts order.
Motodad
Top 50 Contributor
29 days ago Location: Texas, USA
A: yes it will fit your stock bore. new piston rings and recommend new valve guide seals. this should solve your oil burning. with the lighter weight it will give the bike a little more pep!
dman
Q: Is this a 3 ring piston?
2 years 3 months ago
MotoSportRyanT
Expert MotoSport Staff
2 years 3 months ago Location: Portland, OR, USA
A: Yes. The Wiseco Piston for your Yamaha YZ250F would come with 2 compression rings and the oil scraper ring set.
Lilhoppi84
Q: Is the AMA legal to run in stock AMA classes?
2 years 4 months ago
MotoSportRyanT
MotoSport Staff Expert
2 years 4 months ago Location: Portland, OR, USA
A: Yes, as long as you keep the bike at the stock bore size, it is legal to run a Wiseco Piston in the Stock AMA Classes.
cole
Q: Can I use this piston with stock connecting rod?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: Yes, this is designed to be an OEM replacement piston kit and will work with all stock engine parts including the stock crank and rod.
mxmx
Q: Dose this come with?
Over 7 years ago
every thing in the pic..like the rings and stuff
JesseC
MotoSport Staff
Over 7 years ago Location: Tualatin
A: they come with the piston, ring(s), circlips and depending on what model it's for, they usually come with the wrist pin.
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