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Mechman 400A Alternator For 2014-21 GM Silverado Sierra Suburban Tahoe Escalade

Original price $549.00 - Original price $699.00
Original price
$549.00
$549.00 - $699.00
Current price $549.00

FREE GIFT WITH EVERY PURCHASE AUTOMATICALLY ADDED TO CART!

*Most alternators are custom built to order. Standard build time is 2-3 weeks.*

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.

Newly redesigned for 2020, 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 durable for daily use, while still maintaining 200+ amps at engine idle speeds.

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!

 SKU: 14019400B, B14019400

Other options for these vehicles:

Mechman 250A

Mechman 320A

Mechman 370A

Fitment Guide:

CADILLAC Escalade 5.7 / 6.0 / 6.2 14-18
CHEVROLET Full Size Truck/Silverado 4.3 14-18
CHEVROLET Full Size Truck/Silverado 5.3 14-18
CHEVROLET Full Size Truck/Silverado 6.0 14-16
CHEVROLET Full Size Truck/Silverado 6.2 14-18
CHEVROLET Full Size Truck/Silverado 6.6 Diesel 07 2 pin plug
CHEVROLET Full Size Truck/Silverado 6.6 Diesel 08-18
CHEVROLET Suburban All Gas Engines 14-18
CHEVROLET Tahoe/Full Size Blazer All Gas Engines 14-18
GMC Full Size Truck / Sierra 4.3 14-18
GMC Full Size Truck / Sierra 5.3 14-18
GMC Full Size Truck / Sierra 6.0 14-18
GMC Full Size Truck / Sierra 6.2 14-18
GMC Full Size Truck / Sierra 6.6 Diesel 07 2 pin plug
GMC Full Size Truck / Sierra 6.6 Diesel 08-18
GMC Yukon All Gas Engines 14-18