• Amperage Output: 320

Mechman S Series 320 Amp Alternator for 4.0L Toyota / Lexus Trucks

This listing includes:

• (1) Mechman 13984320 Alternator

The S series of 6 phase alternators offers incredible output in a compact and durable package. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. While the 240-amp version offers the best balance between peak output, and output at engine idle RPM, this 320-amp version delivers that extra power at the vehicle driving/cruising RPM levels.

Installation Notes:

This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt to be installed for proper belt tension.

Compatibility Guide:

Toyota 4Runner:

• Engine: 4.0


• Year: 03-09

Toyota FJ Cruiser:

• Engine: 4.0


• Year: 07-09

Toyota Tacoma:

• Engine: 4.0


• Year: 05-15

Toyota Tundra:

• Engine: 4.0


• Year: 05-10