Alternator 250 AMP Kit 12V 3.15″ Dual Foot Saddle K6 Pulley Regulator & Temp SensorKit Includes: XT-CR-250-K6 Alternator, MC-618 Regulator, Temperature Sensors & Mounting HardwareXT Series Alternator: 250A, 12V, Saddle Mount (Dual Foot), 3.15in, K6 Serpentine Pulley, Case Ground4″ J-180-Style Mounting; Typical for Caterpillar, Cummins, Detroit Diesel & John Deere EnginesThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications:Amperage: 250AVoltage: 12vBox Dimensions: 11″H x 11″W x 14″L WT: 21 lbsUPC: 676205503518Brochure (pdf)