What is the purpose of a piston pin?

A piston pin, also known as a wrist pin, connects the piston to the connecting rod. Its main job is to allow the connecting rod to pivot on the piston while transferring combustion forces.

What does 'superfinished outer diameter' mean for this piston pin?

A superfinished surface means the pin has an extremely smooth finish. This helps reduce friction and wear where the pin contacts the piston and connecting rod, contributing to better performance and longevity.

Does this piston pin come with clips or retainers?

The manufacturer description mentions Wiseco piston clips and wrist pin retainer sets are available separately. This specific part number is for the piston pin itself.

Wiseco 15mm x 1.752in NonChromed TW Piston Pin

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Specifications

Brand: Wiseco
Part #: S571
UPC: 193564122483

Wiseco 15mm x 1.752in NonChromed TW Piston Pin

Name: Wiseco 15mm x 1.752in NonChromed TW Piston Pin
Brand: Wiseco
Price: 23.54 USD
Availability: InStock

$23.54

On Backorder

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

Wiseco 15mm x 1.752in NonChromed TW Piston Pin. Keeps your piston assembly secure during engine rebuilds.

Key Features

Fits many Yamaha models including TTR125, WR426F, and YFM125 Raptor.
15mm outer diameter, 9mm inner diameter, and 44.50mm length.
Superfinished outer diameter for smooth operation.
Designed to keep piston assemblies secure during engine rebuilds.
Wiseco offers a range of performance accessories for engine builds.

⚠️ 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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Product Details

When you're rebuilding the top end of your engine, keeping the piston securely attached to the connecting rod is critical. This Wiseco piston pin is designed to do just that, ensuring your engine components stay aligned and function correctly, even under tough conditions.

This pin measures 15mm in outer diameter, with a 9mm inner diameter, and is 44.50mm long. It features a superfinished outer diameter for smooth operation and improved durability within the piston and connecting rod. Wiseco is known for making solid performance accessories to help you complete your engine rebuild right.