Alternator 170 Amp, 12V Single Foot Internal Regulator K6 PulleyAlternator, XT Series, 170A, 12V, Spindle Mount (Single Foot), 1-2in, K6 Serpentine Pulley, Case Ground1a ^2 Motorola-Style Mounting; Typical for Westerbeke, Lehman, Hino & Pathfinder Engines2a ^2 Delco-Style Mounting; Typical for Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based 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: Voltage: 12v; Amperage: 170A; Box Dimensions: 9"H x 9"W x 10"L WT: 14.3 lbs; UPC: 676205501996; Brochure (pdf)