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The Supertech 21×10×54.3mm H13 tool steel wrist pin is a piston pin that connects the piston to the connecting rod in engine assemblies, offered in the 21×10×54.3mm H13 specification for precise replacement. Identified as H13 tool steel in the listing, it is intended for piston rebuilds and engine reassembly where that size and material are required; verify dimensions to ensure proper fitment in your application.
Supertech 21x10x54.3mm H13 Tool Steel Wrist Pin
