Material: Constructed from high quality carbon steel with great strength and durability, resistant to rust.
Spring-loaded Timing Pin for Caterpillar Engines can be easily engaged and disengaged, and the soft pin is to protect the hole in the flywheel from possible damage.
Replacement: Alternative to J-42083, 139-7064 (adapter for C11), 220-2793, 136-4632 ( C-11 and C-13 require adapters 139-7063 or 139-7064 depending on the application).