MPA Electrical 13994 Alternator

Remanufactured 130 Amp Alternator

MPA Electrical Part Number 13994 is a remanufactured 12-volt alternator built for charging-system replacement on select Toyota and Lexus applications. It features a 130 amp output, internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley for the specified Nippondenso-style fitment.

Compatible With 2003-2009 Toyota 4Runner, 2003-2009 Toyota Sequoia, 2003-2009 Toyota Tundra, 2003-2009 Lexus GX470, 2006-2007 Lexus LX470, and 2006-2007 Toyota Land Cruiser. Part number 13994 is also referenced in interchange listings for related charging-system applications.

Key Features

• 130 amp alternator output for 12-volt charging systems
• Internal voltage regulator for integrated control
• Internal fan design
• Clockwise rotation
• 6-groove serpentine pulley
• 12:00 clock position
• Remanufactured MPA Electrical unit
• Nippondenso manufacturer style

Detailed Description

MPA Electrical 13994 is a remanufactured alternator for vehicles that use a Nippondenso-style charging unit with a 6-groove serpentine pulley and internal regulation. The 130 amp output supports factory electrical demand on Toyota 4Runner, Toyota Sequoia, Toyota Tundra, Lexus GX470, Lexus LX470, and Toyota Land Cruiser applications listed for this part. This alternator is specified for 12-volt systems and clockwise rotation, making it a direct-match replacement when the original unit matches these specifications.

This part cross-references BBB Industries 11198 and 13983 for the same application.

What It Helps Resolve

• Battery warning light caused by alternator output loss
• Low charging voltage at the battery
• Dim lights or electrical instability during operation
• Charging-system failure from worn internal components
• Noise or belt-drive issues tied to a failing alternator pulley assembly

Installation Notes and Tips

Verify the original alternator matches the 130 amp rating, 12:00 clock position, clockwise rotation, internal regulator, and 6-groove serpentine pulley before installation. Confirm connector style, mounting points, and belt alignment against the removed unit to ensure proper fit on Toyota 4Runner, Toyota Tundra, and Lexus GX470 applications. Inspect the belt and charging connections during replacement to avoid repeat charging-system faults.

Quality Assurance

This MPA Electrical remanufactured alternator is built as a replacement charging component for the listed Toyota and Lexus applications. It is supplied as a remanufactured unit and should be matched to the vehicle’s original specifications for correct operation.