Wiseco Pro-Lite Piston Kit - 4-Stroke

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

$144.99 - $242.99
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  • Description
  • 32 Reviews
  • 51 Questions
  • Fitment
Description Item #WCO0011

The MotoSport.com Wiseco Pro-Lite Piston Kit - 4-Stroke includes one of each of the following components with the following attributes:

The Wiseco Piston Kit is not just a basic piston replacement, it is a performance piston kit that is more durable than O.E.M. pistons and includes everything necessary to rebuild your top end.

Wiseco Pro-Lite Piston:

Important note: This piston is for a stock sized bore. Please measure your cylinder to check clearance before ordering.

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.

Wiseco Pro-Lite motorcycle pistons are forged using the highest quality materials available resulting in a piston that provides excellent performance and durability. The Wiseco Pro-Lite piston features a race-ready dome finish with smooth edges for improved combustion flow. 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 is achieved.

Pro-Lite Piston features:

  • Much stronger than stock.
  • Tight tolerances for quiet running.
  • More hours with peak performance between piston changes.
  • All Pro-Lite pistons include rings, 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.

Cometic Top End Gasket Kit:

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: Image is for reference only, actual Kit may vary based on contents and fitment.


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32 Reviews
4.5 out of 5 stars
5 Star   27 4 Star   4 3 Star   1 2 Star   0 1 Star   3
chetohands
Alaska, USA
Durability   Ease of Installation   Performance   Power   Style  
Didn't send enough rings for the piston.

I just bought this piston and it came with one less ring than needed. Now I can't install it with out getting new ones. .

whiteYZ450f
Verified Purchaser
Moncks Corner
Durability   Ease of Installation   Performance   Power   Style  

As expected Wiseco put all of the power back into my bike with the aftermarket look. The piston looked so good i almost didnt want to put it in the motor. I have a couple hard rides and havent had the the first problem

race
Verified Purchaser
atx
Durability   Ease of Installation   Performance   Power   Style  
Excellent replacement

Wiseco has never failed me yet, and this piston is no different. It looks excellent and the machining is top-notch. Killer upgrade for any stock bike, or replacement for a toasted piston.

MadMark
Verified Purchaser
In the land of the free and the home of the brave
Durability   Ease of Installation   Performance   Power   Style  
Wiseco Pro-Lite Piston Kit

What else is there to say...Wiseco puts out the best pistons, producing the power required when you snap the throttle, nothing else compares!!!

slymx759
Verified Purchaser
Bedford, VA 24523, USA
Durability   Ease of Installation   Performance   Power   Style  
Everything you should expect

Purchased a Wiseco top end kit for my 06' CRF250r. The kit is everything you should expect from a top end company like Wiseco. High compression piston made a huge power difference. Installation was easy for a mechanic. would not recommend a beginner/shade tree to attempt, but if you do...please open your book and follow the instructions. And of course customer service/shipping etc. was everything you should expect from a top notch company like motosport.com. Would have no problem recommending both product and company to any friend!!

Z1000
Verified Purchaser
SV, AZ
Durability   Ease of Installation   Performance   Power   Style  
Easy Install

This was the first top end rebuild that I have done on any engine and it was surprisingly easy, with a little help from youtube, just make sure you get your timing right

Travis
Callicoon, NY, USA
Durability   Ease of Installation   Performance   Power   Style  
Top notch

best pistons out there great power easy to use come with everything you need for the job two thumbs up

holeshotholm151
Orlando, FL, USA
Durability   Ease of Installation   Performance   Power   Style  
Great piston!

I bought it for my 2011 kx450f and oh man this thing gives you're bike soo much more power! The Top end is way longer now and it added so much more bottom end power! Love it glad I bought it! Deffinatly worth the price. It went together perfect with no problems!

BlueDogMoto
Verified Purchaser Top 50 Contributor
Tuscaloosa, AL
First time for me

I've never replaced a piston before in a four stroke. But, with the economy the way it is I thought I would give it a try. Changing the piston is pretty simple but you have to take a lot of items off the bike to access the piston.

I found this Wiseco top-end kit worked great for my KX250F. Everything worked perfectly including the gaskets and rings. I've put 50 hours on my bike since the piston replacement and it is running great!

yzf258
Top 1000 Contributor
Durability   Ease of Installation   Performance   Power   Style  
Top end for days

This piston added ridiculous top end.

vinnie
Verified Purchaser
Hampstead, MD, USA
Durability   Ease of Installation   Performance   Power   Style  
Powerful

much light piston than stock

vinnie
Verified Purchaser
Hampstead, MD, USA
Durability   Ease of Installation   Performance   Power   Style  
Power

adds alot of power was difficult to wheelie in 3rd on asphalt and difficult to start. after wiseco piston kit it wheelies is 4th on sand easy and in 5th if you clutch it. makes a huge power increase.

Boles48
Tarentum pennsylvania
Durability   Ease of Installation   Performance   Power   Style  
Great product

Everything went in with ease my yfz runs great and has plenty of power.

Thill164
Lansing, MI.
Durability   Ease of Installation   Performance   Power   Style  
Awesome!

I purchased this product to rebuild my 12' crf450 and it was exactly what i was looking for. The product does everything it is supposed to.

Brrap!
Trents68
Top 500 Contributor Verified Purchaser
Newalla, Ok
Durability   Ease of Installation   Performance   Power   Style  
Great kit!

I bought this for a 2007 CRF250R, installed as easy as a 4 stroke topend can be to install. Parts fit perfect and really woke the bike up! With the original topend still in the bike I didn't realize how much power I had lost until I put this kit in and WOW what a difference! Power gains from the very bottom all the way to the very top of the RPM range!

ronsin
Verified Purchaser
Roseville, ca
Durability   Ease of Installation   Performance   Power   Style  
Great price!

Piston kit fit flawlessly. The gasket kit fits perfect, and bike started in two kicks when tge job was done. Im very impressed with the performance of this kit. Wiseco is a great product, and I run there kits in every bike I have owned. These,kits have never failed in any bike I have owned. Great quality product and price.

ryno496
Verified Purchaser
Murrieta, CA
Durability   Ease of Installation   Performance   Power   Style  
Great Piston!

This piston kit is great! it comes with everything you need in itand all of the parts seem to be incredibly durable! The piston itself wieght about half of the one i took out, but i still spears to be stronger than the old one!

motoxdaily
Verified Purchaser
upstate ny
Durability   Ease of Installation   Performance   Power   Style  
Weisco piston kit

Once again weisco made a great product with an easy install, super easy directions, and a huge difference in my crf 250 r's perdormance. Would dedinately recommend this to anyone on any bike. Oh yeah and motosport got this to me in 3 days for free, cmon what more could ya ask for

rideradam
Verified Purchaser
Norwalk, CA
Durability   Ease of Installation   Performance   Style  
Light piston

The rings included with this piston are top notch. Also the piston is super light and the engine now revs easily.

TeeRoy
Chickamauga, GA
Durability   Ease of Installation   Performance   Power   Style  
Great Kit

Great kit with everything needed for the piston. I have 4 hours on the piston and everything is great. It is great to have good compression with dependable kick starts again.Power delivery same as stock piston. I will use this kit after the next 100 hours the last one lasted with just worn rings but piston was good with 100 hrs on it. Wiseco has me sold.

1-20 of 32

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51 Questions
Answered:   51
Not Yet:   0
Arob
Q: What would the compression ratio be for a 2004 Honda trx450r?
6 days 16 hours ago
MotoSportExpert
Expert MotoSport Staff
6 days 6 hours ago
A: This Wiseco Pro-Lite Piston Kit 4848M09400 for your 2004 Honda TRX450R would be 10.5:1 compression ratio.
mxracer85b
Location: Oley, PA 19547, USA
Q: Is this Wiseco piston kit going to lower my stock compression ratio on my 2008 trx450er from 12:1 at all?
3 months 7 days ago
I have a 2008 Trx450er and I'm looking to order the Wiseco top end kit that is compatible with my quad but I want to retain the stock compression ratio of 12:1.
MotoSportExpert
MotoSport Staff Expert
3 months 5 days ago
A: Yes this Wiseco Pro-Lite Piston Kit for your 2008 TRX450ER (4899M09600) would be 12:1.

4899M09600
96.00mm STD

Compression Ratio - Actual:
12:1
Displacement:
450cc
Dome Type:
Domed
Skirt Coating:
Moly
Stroke:
62.00mm
Cujo
Location: North Carolina, USA
Q: What would the compression ratio be for a 2007 yfz450?
Over 5 months ago
I have a 2004 yfz with a 2007 oem crankshaft for longer stroke to give it 449 cc
MotoSportExpert
Expert MotoSport Staff
Over 5 months ago
A: For your 2007 Yamaha YFZ450 this Wiseco Pro-Lite Piston Kit (4865M09500) would be 11.4:1 compression ratio.
Devin
Location: Millbrook, AL, USA
Q: Dose this come with everything i need?
Over 5 months ago
will this come with all the gaskets,rings and everything else I need to rebuild my piston
MotoSportExpert
MotoSport Staff Expert
Over 5 months ago
A: This Wiseco Pro-Lite Piston Kit would include the piston kit as well as the Cometic Top End Gasket Kit. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Jonb
Q: What compression ratio is this piston for a 2014 kx250f?
Over 5 months ago
MotoSportExpert
Expert MotoSport Staff
Over 5 months ago
A: This Wiseco Pro-Lite Piston Kit for your 2014 Kawasaki KX250F (40019M07700) would be 13.5:1 Compression ratio.
Predator
Location: California
Q: What's the compression ratio?
Over 6 months ago
2003 Polaris predator 500 trying to find stock compression piston. Don't want 12.5-1 compression
MotoSportExpert
MotoSport Staff Expert
Over 6 months ago
A: For your 2003 Polaris predator 500 this Wiseco Pro-Lite Piston Kit (4807M09920) would be 12.5:1 compression and is the only compression ratio that Wiseco offer for the 2003 Polaris predator 500.
Donnie
Location: Kentucky, USA
Q: Is this piston stock compression for a 2003 xr400r and what gaskets come with the kit?
Over 9 months ago
MotoSportExpert
Expert MotoSport Staff
Over 9 months ago
A: Yes this would be 10:1 compression and include the following top end gaskets for your 2003 Honda XR400R:
1 - Head Gasket
1 - Base Gasket
1 - Cam Chain Tensioner Gasket
4 - Valve Adjuster Cap O-Rings
1 - Base O-Ring
2 - Exhaust Gasket
1 - Valve Guide O-Ring
4 - Valve Stem Seals
1 - Cam Chain Tensioner O-Ring
1 - Intake Manifold O-Ring
1 - Exhaust O-Ring
1 - Intake O-Ring
John
Location: Lenoir City, TN, USA
Q: What is the compresion ratio on a 2005 wr250f?
Over 9 months ago
Does it have the stock compression ratios
MotoSportExpert
MotoSport Staff Expert
Over 9 months ago
A: The Wiseco Pro-Lite Piston Kit for your 2005 Yamaha WR250F would be 12.5:1 compression.
Justin
Q: What is the compression ratio of this piston for a 2014 kx450?
1 year ago
MotoSportExpert
Expert MotoSport Staff
1 year ago
A: For your 2014 Kawasaki KX450F this Wiseco Pro-Lite Piston Kit would be 12.5:1.

40082M09600 12.5:1 PISTON 96MM
dclifton426f
Q: Does this kit include valve seals for a 2000 yz426f?
1 year 2 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 2 months ago
A: No. The Cometic gasket kit for your 2000 Yamaha YZ426F (C7689) includes:
1 - Head Gasket
1 - Base Gasket
1 - Cam Chain Tensioner Gasket
1-10 of 51

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