Alternator Part Numbers: 15006640100, 1500664100, 686696095294 Overview A 50 amp alternator with internal regulator and negative polarity, designed for applications that require clockwise rotation and specific mounting options. Includes an 87 mm lead for wiring reach and convenience. Key benefits Correct charging capacity: 50 amp output to maintain battery charge and power vehicle electrical systems in light to medium duty applications. Simplified installation: internal regulator removes the need for an external regulator, reducing wiring complexity. Direct fit features: clockwise rotation and negative polarity match systems that require these specifications, minimizing retrofit changes. Flexible mounting: one M81.25 threaded ear and one 8.3 mm unthreaded ear to simplify conversion and alignment during installation. Installready wiring: 87 mm lead provides additional reach for easier connector access and routing. Important attributes Item: Alternator Amperage: 50 A Polarity: Negative Regulator: Internal Rotation: Clockwise Lead length: 87 mm Mounting ear 1: M81.25 threaded Mounting ear 2: 8.3 mm unthreaded to improve conversion rates Part numbers: 15006640100, 1500664100, 686696095294 Practical applications Replacement alternator for agricultural equipment and tractors that require clockwise rotation and negative ground systems. Service use in small generator sets and industrial machines where a 50 amp charging source with internal regulation is needed. Retrofit for light commercial or construction vehicles where the threaded and unthreaded mounting ears aid in alignment and conversion. Installation advice Confirm rotation, polarity, amperage, lead length, and mounting dimensions against the existing unit before installation. Ensure electrical connections and grounding follow equipment manufacturer guidance. Verify that the unthreaded 8.3 mm mounting ear is compatible with your conversion hardware or brackets. This alternator is supplied to match the listed part numbers and specifications. Verify fit and compatibility with your equipment prior to .