Alternator replacement with multiple reference numbers for compatible fit and straightforward installation Key features and benefits 85 amp charging output for stable electrical supply to vehicle systems and accessories. Internal voltage regulator simplifies wiring and reduces the need for external control modules. External fan design supports active cooling under load for dependable operation in continuousduty applications. Negative polarity configuration matches standard negativeground electrical systems. B plus terminal M81.25 provides a secure, threaded connection for heavygauge charging cables. Shaft outside diameter 0.669 in / 17 mm fits pulleys and couplings designed to this common size. Mounting ear 1: 8.3 mm unthreaded to facilitate conversion and retrofitting during replacements. Why this alternator solves common problems Replaces worn or failing alternators to restore charging capacity and prevent battery drainage. Internal regulator removes the need to troubleshoot separate regulator components when diagnosing charging issues. Robust B plus terminal and correct shaft size minimize installation complications and reduce time on the bench. Compatibility and part numbers Compatible replacement references include: IA0989, AL60033, AL78690, 0120484016, AL9935X, TY6792, TY6779, DRA3128, AL81437, 86696E, AL67176, 0120484016, TY6778, 0120484003, IA0592, 0120484002, 0120484003 Typical applications Direct replacement in vehicles or equipment that use any of the listed part numbers and require an 85 amp output with negative polarity. Workshop spare for rapid swapouts during maintenance or roadside repairs where a directfit alternator is needed. Custom retrofits or engine conversions that require a 17 mm shaft and an unthreaded 8.3 mm mounting ear for adapter compatibility. Technical specifications Item description: Alternator Amperage: 85 amps B plus terminal: M81.25 Fan: External Polarity: Negative Regulator: Internal Shaft OD (pulley): 0.669 in / 17 mm Mounting ear 1: 8.3 mm unthreaded Installation note Confirm vehicle or equipment compatibility by matching one of the listed reference numbers and the electrical and mechanical specifications before installation.