Wiseco Upgrade Piston Wrist Pin 21mm .225" Wall Thickness S733 (single)

Upgrade your engine's durability and performance with the Wiseco S733 Piston Wrist Pin. Engineered for high-stress applications such as turbocharged and nitrous builds, this 21mm wrist pin is manufactured from 9310 case-hardened steel and ground to a superfinish for ultimate strength and wear resistance.

With a .225" wall thickness, 2.002" length, and 108g weight, this pin is ideal for high-contact stress environments where superior toughness and reliability are critical. Designed for demanding motorsport or high-performance street builds.

Key Features:

• Part Number: S733

• Outer Diameter: 21mm

• Wall Thickness: .225"

• Length: 2.002"

• Weight: 108 grams

• Material: 9310 case-hardened steel

• Hardness: 59–63 Rockwell C

• Ground to superfinish (.025 Ra or better)

• Perfect for turbo, nitrous, and high-load applications

• Sold as a single wrist pin

Trust Wiseco for race-proven strength and precision in your next engine build.