Balmar Alternator 250 AMP 12V 3.15" Dual Foot Saddle K6 Pulley [XT-DF-250-K6]Alternator 250 AMP 12V 3. 15" Dual Foot Saddle K6 Pulley Alternator, XT Series, 250A, 12V, Saddle Mount (Dual Foot), 3. 15in, K6 Serpentine Pulley, Case Ground Hitachi Style Mounting; Typical for Yanmar, Westerbeke, Lehman & Perkins Sabre Engines Replaces: AT DF 200 12 IG, AT DF 200 K6 This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Amperage: 250A