Piston Pins Collection | Wrist Pins for Engine Builds

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Piston Pins

Piston pins—also called wrist pins—are a critical link between the piston and connecting rod, transferring combustion forces while allowing the piston to pivot. They operate under extreme heat, pressure, and cyclic loading, so material, fit, and surface finish directly affect engine reliability and performance.

Available in multiple diameters, lengths, and wall thicknesses to match specific pistons and rods
Common materials include case-hardened 5115 steel, 4130 chromoly, and tool steel for high-strength applications
Surface treatments such as gas nitriding, DLC (diamond-like carbon), or WPC (micro shot peening) reduce friction and wear
Sold individually or in complete engine sets—verify quantity needed before ordering

This collection spans everything from stock-replacement pins to lightweight, high-strength options for forced induction, nitrous, or high-rpm builds. For advice on measuring your existing pins or selecting the right wall thickness for your power goals, reach out to our tech team.

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Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.

Piston Pins

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