Hitachi OE# LR180-502, B AlternatorAlternator - Hitachi IR/EF 80 Amp/12 Volt, CW, 6-Groove Pulley Used On: Isuzu NPR Trucks w/ 5.7L GM Engines Replaces: Hitachi LR180-502, BIsuzu 8-97037-064-0 100% New