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Wiseco R951 Big Bore Forged Piston Kit Kawasaki - 950cc ZX-9R

(1994-1997 Kawasaki ZX900 Ninja ZX-9R)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

R951
13 reviews
Sale Price

$923.99

Estimated ship date Wednesday, November 18

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Product Details

The Wiseco R951 is a complete 950cc big bore forged piston kit designed for the Kawasaki Ninja ZX-9R. This kit delivers a significant displacement increase over the stock 899cc engine, featuring a 75.00mm actual bore (2.00mm over standard 73.00mm) and a 13:1 compression ratio — purpose-built for high-performance street and drag racing applications.

Kit Includes:

  • 4x Wiseco 4591M07500 forged pistons — 75.00mm, 13:1 compression
  • 4x Wiseco 2953XG piston ring sets — 75.00mm
  • 4x Wiseco S343 18.00mm wrist pins
  • 4x Wiseco CW18 18mm round wire wrist pin locks / circlips (pairs)
  • 1x Wiseco W5440 head gasket

Key Features:

  • Forged high-silicon aluminum alloy construction for superior strength, reduced weight, and improved heat transfer over cast pistons
  • Diamond-turned CNC finish ensures precise sizing with no variation, compatible with cast iron, chrome, Nikasil, and boron composite cylinder bores
  • Application-specific forging design optimizes the strength-to-weight ratio for this engine's exact bore, stroke, and combustion geometry
  • Engineered, forged, and machined in the USA in Mentor, OH
  • Displacement increased to 950cc (stock: 899cc) — bore: 75.00mm, stroke: 53.74mm

Specifications:

  • Displacement: 950cc
  • Standard Bore: 73.00mm
  • Actual Bore: 75.00mm (+2.00mm oversize)
  • Stroke: 53.74mm
  • Compression Ratio: 13:1
  • Wrist Pin Diameter: 18.00mm
  • Ring Set: Wiseco 2953XG

Note: Cylinder boring is required for installation of this big bore kit. Wiseco forged pistons are compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions.

Products specifications

Fits

1994-1997 Kawasaki ZX900 Ninja ZX-9R

After looking for 3 months online (for a sale), Autoplicity was recommended by a guy on a forum. I knew exactly what air intake I wanted. I couldn't believe the REGULAR PRICE, I thought they were going to make most of it back on shipping. Nope. After all said and done I saved almost 40% compared to the other places I checked (even my mechanic ) . Definitely will be the first place I check when I need something for my truck. New part, big savings, it's a good day.

very nice thanks

Quick and easy!

Easy ordering. Great selection.

So far so good. Great price

Always have what I need for the lowest price with free or cheap shipping.

Easy to navigate. Great prices.

hope product is as nice as portrayed

good so far

First time. Generous 4 stars.

Great

Great so far

thanks

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