SKP SK13900 Alternator

Alternator for Infiniti QX4 and Nissan Pathfinder

The SKP SK13900 is a 12V alternator built for select 2001-2002 Infiniti QX4 and Nissan Pathfinder applications. It features an internal fan, clockwise rotation, and a 110-amp output for vehicles using the HITACHI family design.

Key Features

• 12V alternator with 110 amperage rating
• Internal fan design for charging system operation
• Clockwise rotation (right)
• HITACHI family configuration
• Direct fit for select 2001-2002 Infiniti QX4 and Nissan Pathfinder models
• Part number SK13900 for application matching

Product Details

SKP SK13900 is an electrical charging component intended for vehicles that require a 12-volt alternator with internal fan construction and clockwise rotation. It is listed for 2001-2002 Infiniti QX4 and 2001-2002 Nissan Pathfinder models with the specified unit-type alternator configuration, 110-amp output, S6 pulley class, and IR regulator setup. This part cross-references BBB Industries 13900 for the same application.

Common Charging System Issues It May Address

• Low battery charging caused by a worn alternator
• Dim lights or electrical instability at idle
• Battery warning light related to charging output loss
• Accessory performance problems from insufficient alternator amperage
• Noise or failure from an aging OE-style charging unit

Installation Notes and Tips

Verify the vehicle’s year, make, model, pulley class, regulator type, rotation direction, and amperage before installation. Confirm that the existing charging system matches the HITACHI family specification and the SK13900 application listing for Infiniti QX4 or Nissan Pathfinder. Inspect the battery, belt condition, and related charging circuit components during replacement to help ensure proper system operation.

Quality Assurance

SKP replacement parts are cataloged for application-specific fitment and specification matching. The SK13900 is identified with confirmed vehicle coverage for 2001-2002 Infiniti QX4 and 2001-2002 Nissan Pathfinder, supporting accurate part selection for the listed charging system configuration.