Mechman 400 Amp High Output Alternators

Shop Mechman® 400 amp high output alternators for supported GM, Chevrolet, GMC, Cadillac, Ford, Ram, Dodge, Nissan, Infiniti, diesel, racing, and specialty applications. These high-capacity charging systems are intended for vehicles with substantial electrical demand from car audio, lighting, winches, accessories, battery banks, and work equipment.

Available models include cast and billet designs, application-specific mounting styles, RVC-bypass configurations, and multiple finish options. Actual output, idle performance, pulley requirements, wiring, and regulator compatibility vary by product and vehicle.

Confirm the exact year, make, model, engine, factory plug, and belt arrangement before ordering. If 400 amps exceeds your needs, compare our 370 amp high output alternators.