Mechman 240 Amp Alternator For 08-18 GM Crossovers- Cadillac/Buick/Chevrolet/GMC/Saturn 3.6L*Most alternators are custom built to order. Standard build time is 10 14 days.* 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 exceptional output at engine idle speeds. Some models are available with adjustable voltage, ask a sales