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Wiseco PK1606 GP Style 2-Stroke Piston Kit 54mm for Kawasaki KX125 2003-2008

(2003-2005 Kawasaki KX125)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

PK1606
12 reviews
Sale Price

$232.99

Estimated ship date Sunday, November 22

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Product Details

The Wiseco PK1606 is a complete GP Style top-end piston kit designed for the Kawasaki KX125 (2003–2008) with a standard 54mm bore. This kit is built on Wiseco's premium GP Series platform, which takes the proven Pro-Lite foundation and adds advanced coatings and durability enhancements purpose-built for high-RPM 2-stroke performance and endurance applications.

The GP Series piston features an Electra-Coated crown, ring groove, and pin bore to resist wear, combustion heat damage, and ring micro-welding. The ArmorGlide skirt coating reduces friction to help sustain peak power output over extended service intervals. The piston is forged from aerospace-grade aluminum alloy using a dedicated forging process, then CNC machined in the USA for an optimized cam shape and profile that delivers peak horsepower and long service life.

Kit Includes:

  • 1 GP Style forged piston (54.00mm bore — SKU 788M05400)
  • High-performance ring set (2126CS)
  • Alloy wrist pin (S632)
  • Circlip set (CW15)
  • Wiseco top-end gasket kit (W6253)
  • Premium top-end needle bearing (B1013)

Key Features:

  • GP Series design — engineered for endurance and sustained-RPM 2-stroke riding
  • Electra-Coated crown, ring groove, and pin bore — resists wear, heat damage, and ring micro-welding
  • ArmorGlide skirt coating — minimizes friction for optimized performance
  • Aerospace alloy forging — superior strength-to-weight ratio with dedicated piston-specific forgings
  • CNC machined in the USA — engineered, forged, and machined in Mentor, OH
  • High-performance ring set — extended service life and sustained power output
  • Premium alloy wrist pin — precision machined for consistent tolerances and durability
  • Covers a single cylinder; sold by application and bore size

The Wiseco PK1606 is a complete solution for a KX125 top-end rebuild, providing race-proven components trusted by professional race teams across all forms of competition. Note: PK1606 is the complete top-end kit part number; the piston-only SKU is 788M05400.

Products specifications

Fits

2003-2005 Kawasaki KX125

Comments

Armor Glide Skirt Coated.

Distinct Name

GP Style - (Pro-Lite) - Standard Bore 54.00mm

Size

54mm

nice ,good prices

great price, received item and latch was broke. I just contacted my sales rep to se if I can get a replacement latch WITHOUT having to box up and ship back entire order

So far so good, super easy payment method, tapped into my Amazon account and saved $10 over Amazon prices. We'll see if shipping and product is as described.

We'll see!

Simple easy, and fast.

Great price for an Exide AGM battery, and also Bosch ICON wipers, with reasonable shipping, BUT when I added a second wiper the shipping cost DOUBLED, so I just ordered one for now. Also, it would be nice to have a time estimate for shipping, since I have no idea where you're located, and hence, how long this order might take.

Great

Simple easy and very fair with shipping and price can't be beat

quick and easy

Site was easy to navigate

Easy ordering. Great prices

Excellent price with no tax and free shipping. What's not to like? Cheaper than Lowes for the same item and it appears that I can get it sooner. I received the order. Shipping was way faster than I expected and was packed well. Overall, 5 stars.

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