Used for Nippondenso alternator, it's OEM No. is: 949100-2790 Features: Dimensions: 15 x 35 x 13mm It's suitable for Acura, Chevrolet Imports, Chrysler Imports, Honda, Isuzu and Toyota alternators.Replaces: B15-69, 398, 949100-2790 and 279 Lester no: 14668 and 14941 OEM unit no: 100211-2030 and 100211-2140 Note: Clearance: C3 Grease: high temperature grease 279D Alternator bearing