Mechman 400 Amp High Output Alternator for GM 2014-2018 Tahoe Escalade Silverado

For GM Silverado, Escalade, Tahoe, Suburban, Sierra vehicles 2014 - 2018 6 Phase technology 12 Diodes These alternators use the more robust 4 pin style regulator than the OE 2 pin ECU controlled alternator Mechman 400 Amp High Output Alternator for GM 2014-2018 Tahoe Escalade Silverado This listing includes: (1) Mechman 400 Amp High Output Alternator 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 Elite series offers the highest possible amperage and durability available in a large case alternator. 6 phase technology combined with massive twin rectifier assemblies and 12 diodes makes these alternators totally durab