SKP SK13859 Alternator

Alternator for Toyota Sequoia and Tundra

The SKP SK13859 alternator is a 12V charging component built for select Toyota applications that use the DENSO family design. With a 100 amp rating, internal fan, and clockwise rotation, it supports stable electrical output for daily driving and accessory loads. This SK13859 alternator fits 2001-2002 Toyota Sequoia and 2000-2002 Toyota Tundra applications listed below.

Key Features

• 12V alternator for charging-system replacement
• 100 amp amperage rating
• Internal fan design
• Clockwise (right) rotation direction
• DENSO family configuration
• Direct fitment for select Toyota Sequoia and Toyota Tundra models

Detailed Description

SKP SK13859 is an alternator for vehicles equipped with a DENSO-style charging system. It is specified with 12 volts, an internal fan, clockwise rotation, and a 100 amp output rating. Fitment includes 2001-2002 Toyota Sequoia and 2000-2002 Toyota Tundra, with application notes calling for 12 volts, 110A, 12:00 position, negative polarity, and an M6-1.0 output stud. This part cross-references BBB Industries 13859 and WAI 13859N for the same application.

Vehicle Fitment

• Fits 2001-2002 Toyota Sequoia, N/A. Notes: 12 Volts; 110A; 12:00 Position; Negative Polarity; M6-1.0 Output Stud.
• Fits 2000-2002 Toyota Tundra, N/A. Notes: 12 Volts; 110A; 12:00 Position; Negative Polarity; M6-1.0 Output Stud.

Common Issues This Part Can Address

• Battery warning light caused by weak charging output
• Dim headlights or unstable electrical performance
• Battery discharge from a failing alternator
• Charging-system noise or inconsistent voltage output
• Electrical strain from worn internal alternator components

Installation Notes and Tips

Verify the vehicle’s alternator mounting style, pulley alignment, connector layout, output stud size, and polarity before installation. Confirm the application notes for 12:00 position and negative polarity on the vehicle side, and compare the removed unit to SKP SK13859 before final fitment. For Toyota Sequoia and Toyota Tundra charging-system service, matching the OE-style configuration helps ensure proper electrical connection and charging performance.

Quality Assurance

SKP manufactures this alternator as a replacement electrical component for the listed Toyota applications. The SK13859 part number is also referenced by BBB Industries 13859 and WAI 13859N, supporting application matching during parts lookup and service verification.