Description
- 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

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