Product: Alternator, 65 Amp, Internal Regulator, Clockwise Rotation Key specifications Item: Alternator Amperage: 65 A Regulator: Internal Rotation: Clockwise Fan: External (designed to work with an external cooling fan) D+ Terminal: Spade Mount Type: Spool Shaft OD (pulley): 0.669 in / 17 mm Compatible part numbers: A187873, AL9959X, AAK1363, IA0727, 680175651025, 0120489475, 0120489475, 11201935, 11204382, 69X56677B, A181873, 3604480RX Why this alternator matters Reliable charging: Provides a steady 65 amp output to maintain battery charge and power vehicle electrical systems under normal operating loads. Direct replacement: Matches common part numbers for a straightforward swap, reducing fitment uncertainty and installation time. Simplified installation: Internal regulator and a spade style D plus terminal reduce external wiring complexity and make connections clear and repeatable. Correct mechanical fit: Spool mount and 17 mm shaft diameter fit applications that require this configuration, preserving pulley alignment and belt routing. Service ready: External fan compatibility and robust design support continuous use in typical vehicle and equipment duty cycles. How it solves common problems Restores charging function after alternator failure so batteries charge properly and electrical systems operate reliably. Eliminates intermittent charging and related electrical faults caused by worn regulators or damaged alternator internals. Reduces downtime for maintenance with a compatible, plug and play style replacement that fits vehicles and equipment using the listed part numbers. Performance and application notes Intended for 12 volt charging systems requiring a clockwise rotating alternator with a 65 amp output. External fan requirement means the unit is designed to work with systems that provide cooling via the pulley fan or separate fan assembly. Spade D plus terminal provides a standard signal/charge lamp connection in compatible wiring harnesses. Typical use scenarios 1) Vehicle service replacement: Swap in this alternator when an original unit with one of the listed part numbers fails, restoring battery charging and preventing stall or starting issues. 2) Fleet maintenance: Standardize replacements across a fleet of light commercial vehicles or equipment that share the spool mount, 17 mm shaft, and clockwise rotation to minimize stocking different units. 3) Accessory upgrades: Install when adding accessories that increase electrical demand and the existing alternator has failed or become unreliable, ensuring consistent 65 amp output for lighting, pumps, and auxiliary systems. Installation checklist Verify vehicle or equipment uses clockwise rotation and accepts a spool mount alternator with 0.669 in / 17 mm shaft. Confirm compatibility with one of the listed part numbers before ordering. Ensure external fan or cooling arrangement is present and functional. Connect D plus terminal via spade connector and verify ground and battery connections are secure. Compatible part numbers for reference A187873, AL9959X, AAK1363, IA0727, 680175651025, 0120489475, 0120489475, 11201935, 11204382, 69X56677B, A181873, 3604480RX This alternator provides a practical, specificationmatched replacement option for systems that require a 65 amp, internally regulated, clockwise rotating unit with spool mount and 17 mm shaft diameter.