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The Supertech 21×10×44.30mm wrist pin is a piston wrist pin intended to connect the piston to the connecting rod in engine assemblies, supplied in the 21×10×44.30mm size for accurate replacement when that dimension is needed. It matches Supertech's SPT line sizing and is intended for piston rebuilds and engine reassembly; verify the dimension for correct application in your build.
Supertech 21x10x44.30mm Wrist Pin
