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. - cis2:mm5mnJlm -Specifications: Amperage: 250A; Voltage: 12v; Box Dimensions: 11"H x 11"W x 14"L WT: 21 lbs; UPC: 676205503518; Brochure (pdf)