Available Amperages: 370amp, 320amp, 240amp Ford Ranger 2006-2008 V6 3.0L 2986CC 182CID Mazda B3000 2006-2007 V6 3.0L 2986CC 182CID Small Case Alternators Large Case Alternators (Alts smaller than 370) (Alts 370 and larger)160amps @ 650 rpms 220amps at 650 rpmsFull amps @ 1800 rpms Full amps at 1800rpms AutoTech Engineering Alternators require a .5 inch smaller belt than your OEM Alternator AutoTech Engineering alternators need a minimum of 650rpm to charge. Unless otherwise quoted or instructed, our units come with the OEM voltage output for plug-and-play alternators. The quoted voltage settings are already built into the alternator's voltage regulator. Remember that in PCM- and ECU-controlled vehicles, the vehicle's “brain/computer” controls the voltage. What is a Bypass?If you choose to have a bypass, you are wiring around the PCM or ECU voltage control. This allows us to customize the charging voltage beyond what the vehicle’s computer normally permits. In most cases, the battery warning light will remain illuminated. Bypass charging voltage: 14.8V. Important: A PCM/ECU bypass is required when using the boosted harness. Need help wiring your bypass or have questions? Find out more here:Tutorial videos & Frequently Asked Questions Warranty: One year on parts and lifetime labor. Order Time FramesBuild time is 14 days. Powder Coating adds up to 5 business daysShipping takes 5-7 days If you use Klarna, Sezzle, or Affirm, please allow an additional seven days for processing. https://autotechengineeringusa.com/powder_coat_color_chart