Alternator 170 AMP Kit 12V 3.15″ Dual Foot Saddle K6 Pulley Regulator & Temp SensorKit Includes: XT-DF-170-K6 Alternator, MC-618 Regulator, Temperature Sensors & Mounting HardwareXT Series Alternator: 170A, 12V, Saddle Mount (Dual Foot), 3.15in, K6 Serpentine Pulley, Case GroundHitachi-Style Mounting; Typical for Yanmar, Westerbeke, Lehman & Perkins-Sabre EnginesReplaces: AT-DF-MC-165-KIT, AT-DF-165-K6-KITThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications:Amperage: 170AVoltage: 12vBox Dimensions: 10″H x 11″W x 14″L WT: 17.5 lbsUPC: 676205503594Brochure (pdf)