Carrillo Pro-H connecting rods for the first-generation Mitsubishi 4G63 four-cylinder engine are offered with 3/8" WMC bolts as specified. These rods serve as direct replacement connecting rods for 4G63 1st Gen applications, providing the correct rod and bolt configuration identified in the product description for engine rebuilds or part-for-part replacements.
Carrillo Mitsubishi 4G63 1st Gen Pro-H 3/8 WMC Bolt Connecting Rods