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Wiseco Pistons 4577M09750 Forged Piston Kit Bore Compression Oversize - 97.50mm 9 1 0.50mm

(1985-2000 Honda XR600R)

Part of: Wiseco Pistons Forged Piston Kit Compression

Other options in this family: Wiseco Pistons 40071M05400 Wiseco Pistons 40109M08300 Wiseco Pistons 40078M07400 Wiseco Pistons 40086M09600 Wiseco Pistons 4629M07500

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

4577M09750
13 reviews
Sale Price

$237.99

Estimated ship date Sunday, November 22

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Product Details

The Wiseco 4577M09750 is a high-performance forged piston kit engineered for 4-stroke dirt bike applications. This piston features a 97.50mm actual bore size with a 0.50mm oversize specification, making it an ideal replacement for rebuilds requiring cylinder boring or sleeving. The piston delivers a 9:1 compression ratio for reliable performance and improved throttle response.

Complete Kit Includes:

  • One forged piston with all components needed for single piston replacement
  • High-quality ring set (3839XH - 97.50mm)
  • Wrist pin (S627 - 24mm x 2.5in x 4.0mm wall)
  • Round wire pin locks/circlips - 24mm (pair - CW24)

Premium Forged Construction:

Engineered, forged, and machined in the USA in Mentor, OH, each piston is designed and built for specific 4-stroke powersports engines. Wiseco is unique as the only U.S. aftermarket manufacturer producing pistons strictly using the forging process, starting with aerospace-grade aluminum that is compressed to increase density and align grain flow, resulting in superior strength and impact resistance compared to cast pistons.

Technical Specifications:

  • Bore Size (Actual): 97.50mm
  • Bore Size (Standard): 97.00mm
  • Oversize: 0.50mm
  • Compression Ratio: 9:1
  • Displacement: 597cc | Stroke: 80.00mm | Cylinders: 1
  • Radial head design

Important Notes:

  • Cylinder sleeving required for installation
  • Only Wiseco replacement ring sets can be used on Wiseco pistons
  • Diamond turned finish from CNC computer-controlled turning centers guarantees perfect finish with no size variation and can be installed in any cylinder bore composition

Products specifications

Fits

1985-2000 Honda XR600R

Comments

Radial head, 9:1 Compression, Cylinder sleeving required for oversizes

Quick, easy and great price.

Quick, easy.

Very good start in the order process. Ordering and delivery were excellent. I have not yet tried opr tested the product. Thanks

Great price and site is easy to navigate.

great deal

Intuitive website. Multiple payment options. Competitive pricing and shipping charges.

Yo

good?

User friendly, quick and had what I needed

Easy check out. the new system is a lot better than the old one. Ability to reorder items is a good feature too. We do several thousands of dollars here a here and love to see the upgrades going through.

This site was just like shopping at a real store. It was easy to make my order and I was able to do it on the go on my smartphone which is important to me that a site is compatible with handheld. Bravo

Autoplicity had the best price on the part I needed and was in stock. Easy ordering process and good correspondence.

only problem so far is this obnoxious messge .

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