Sierra 18-6298 MerCruiser AlternatorSierra high-quality engine parts are designed to meet OEM specifications. All Sierra alternators meet or exceed USCG and SAE J1171 safety requirements and are 100% load tested for assured reliability. This MerCruiser Alternator will maintain proper charging levels.Features: Amp Rating: 7SI/70; Mount Type: Hinge; Pulley Type: Serpentine; Diameter Size: 1.97"; Fits 100 Vazer, 2001 & Newer GM V-6 & V-8 Engines (s/n 0M320025 & Up) & MCM 496 Mag & HO & MIE 8.1L & HO; Interchangeable With: Arco; 20815; Mallory; 9-19111; MerCruiser Stern Drive; 863077T;