Low Profile Mini-Fuse Alternator Voltage Booster - Toyota Tacoma/4Runner/Tundra.

This voltage booster corrects your alternator output by approximately 1/2 to 3/4 of a volt. It will force the alternator to output between 14.1 and 14.7 volts to correctly charge and manintain AGM Batteries brands such as Odyssey, Optima, Nothstart, etc.)

It uses a small diode professionally installed, soldered in place for a secure long-term bond.

Simply replace the ALT-S fuse in your front fusebox with this booster and retain your factory fuse protection.

DOES NOT WORK WITH:

2011 & 2019 4Runner 4.0 V6 (Order special reversed version!)

Verified to work with:

2010 - 2016 Tacoma with ALT-S Fuse.

2010 - 2023 4Runner with ALT-S Fuse.

2010 - Most late model Toyotas & Scions with Low Profile Mini-Fuse with ALT-S Fuse.

Low Profile Mini-Fuses Tundra with ALT-S Fuse.

This will only work with Low Profile Mini-Fuse - it will not work with other makes/ models/ years not listed above!

1 YEAR WARRANTY ON PART - We will replace any failed part, no questions asked.