What is the primary function of a piston wrist pin?

The piston wrist pin, also known as a gudgeon pin, connects the piston to the connecting rod. It allows the piston to pivot on the connecting rod while transferring the force of combustion up and down the cylinder bore.

What materials are used in Wiseco wrist pins?

Wiseco wrist pins are made from high-strength metals such as Alloy 4130 and Tool Steel H13. These materials are selected for their durability and ability to handle the significant forces and wear encountered in an engine's top end.

Are there different sizes of Wiseco wrist pins available?

Yes, Wiseco manufactures their wrist pins in a variety of diameters, thicknesses, and lengths. This allows for specific fitment across different engine applications and piston designs.

Wiseco PISTON PIN-21MM X 50.85 X 13MM ID Piston Pin

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Specifications

Brand: Wiseco
Part #: S656
UPC: 00193564101921

Wiseco PISTON PIN-21MM X 50.85 X 13MM ID Piston Pin

Name: Wiseco PISTON PIN-21MM X 50.85 X 13MM ID Piston Pin
Brand: Wiseco
Price: 15.99 USD
Availability: InStock

$15.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2008-2014 Kawasaki KFX450R. This Wiseco piston wrist pin is a crucial engine component for transferring force up and down the cylinder bore.

Key Features

Fits 2008-2014 Kawasaki KFX450R.
Connects the piston to the connecting rod.
Handles over 11,000 pounds of force per power stroke.
Constructed from high-strength Alloy 4130 and Tool Steel H13.
Measures 21mm outer diameter, 13mm inner diameter, and 50.85mm length.
Features a superfinished outer diameter for smooth operation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Honda TRX450R 2004-2005
Kawasaki KFX450R 2008-2014

Product Details

When you're rebuilding the top end of your 2008-2014 Kawasaki KFX450R, the piston wrist pin is a small but incredibly important part. It connects the piston to the connecting rod, and its job is to handle the immense forces generated during combustion, shuttling over 11,000 pounds of force up and down the cylinder bore with every power stroke.

Wiseco crafts these wrist pins using high-strength metals like Alloy 4130 and Tool Steel H13, chosen for their ability to withstand the constant wear and tear inside your engine. This particular pin measures 21mm in outer diameter, 13mm in inner diameter, and is 50.85mm long, with a superfinished outer diameter for smooth operation. Wiseco offers a variety of sizes to match different engine builds and needs.