Sierras 18-5744 Voltage Regulator is designed for use in Force engines with a 16 Amp to 20 Amp charging system (1993 to Present). Includes one voltage regulator per package. It is interchangeable with Chrysler/Force/US Marine 815279-4, 815279T4, 815279T5, 8174111, 830179A1, 854514A1, 856747T1, and 883071A1. Each Sierra product meets or exceeds the original equipment part it replaces.