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320 amp high output alternator for GM Truck 14-18

320 amp high output alternator for GM Truck 14-18

$519.00
star_rate star_rate star_rate star_rate star_rate mode_comment 1 review edit Write a Review
SKU:
14019320
Availability:
PLEASE SEE INSTALLATION NOTES BELOW AND/OR CONTACT A MECHMAN SALES REPRESENTATIVE AT 1-888-632-4626. Call For IN STOCK Item Purchases!
Weight:
17 LBS

Installation Notes:

This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt for proper belt tension. Not recommended for sustained use above 5,000 RPM engine speed.  ((Check instructions section for finding belt sizes and wiring)). If you DO NOT use the correct shorter belt, this will result in very low to no output and create extra work load for the alternator. 


The cast housing Elite series offers the highest possible amperage and durability available in a large case hairpin alternator. 6 phase technology combined with massive twin rectifier assemblies and 12 diodes make these alternators totally durable for daily use, while still maintaining great output. This alternator cranks out over 200 amps at engine idle speeds and a full 320+ at cruising speeds at FULL TEMPERATURE. 

These alternators use the more robust 4 pin style regulator than the OE 2 pin ECU controlled alternator. There is no extreme voltage fluctuation as this will bypass the RVC charging system on all 2005> GM truck applications. Simply install the included 1 wire P101 harness to a tested 12v switched source and plug in the included P103 module into the vehicles 2 pin original alternator wiring harness. No check battery light, no computer controlled voltage swings. The voltage you want, when you want it!

Fitments:

Make
Model
Engine Size
Year
Cadillac
Escalade
6.2L
2014 - 2019
Chevrolet
Silverado 1500 / 2500 / 3500
All Gas Engines
2014 - 2018
Chevrolet
Silverado 1500 / 2500 / 3500
6.6L Duramax
2014 - 2018
Chevrolet
Suburban
All Gas Engines
2020 - 2018
Chevrolet
Tahoe
All Gas Engines
2014 - 2018
GMC
Sierra 1500 / 2500 / 3500
4.3L / 5.3L
2014 - 2018
GMC
Sierra 1500 / 2500 / 3500
6.0L
2014 - 2016
GMC
Sierra 1500 / 2500 / 3500
6.2L
2014 - 2018
GMC
Sierra 2500 / 3500
6.6L Duramax
2014 - 2018
GMC
Yukon
All Gas Engines
2014 - 2018

1 Review

  • Alternator
    star_rate star_rate star_rate star_rate star_rate 5

    Posted by Robert Newton on 12th Mar 2023

    This is a very good alternator. I have it on two xS D3400 batteries. I love that it has the RVC Bypass for my 2011 silverado. I have Various lightbars, a 4,100 watt RMS amplifier, voltage never gets Below 14.5.