Mechman GM Oval 4-Pin Alternator to CS130 / CS144 Vehicle Harness H101

Converts oval GM 4-Pin alternator to CS130/144 vehicle harness. Plug-and-play installation for easy integration. Mechman GM Oval 4-Pin Alternator to CS130/144 Vehicle Harness H101 This Listing Includes: (1) H101 CS Female Plug to AD Male Plug Adapter This handy little adapter harness allows you to plug an oval 4 pin late model GM alternator into a Rectangular CS130 or CS144 vehicle harness. This harness is required in order to install certain high output alternators on GM trucks that originally came with a CS130 or CS144 alternator with a rectangular plug from the factory. This is common on most 1988-1995 GM trucks, as well as some later models equipped with the heavy-duty charging option.