Product Description
Available Amperages: 320amp, 240amp, 170amp
- Ford Bronco 1985-1989 L6 4.9L 4917CC 300CID
- Ford F-150 1985-1993 L6 4.9L 4917CC 300CID
- Ford F-250 1985-1993 L6 4.9L 4917CC 300CID
- Ford F-350 1985-1993 L6 4.9L 4917CC 300CID
Small Case Alternators Large Case Alternators
(Alts smaller than 370) (Alts 370 and larger)
160amps @ 650 rpms 220amps at 650 rpms
Full amps @ 1800 rpms Full amps at 1800rpms
AutoTech Engineering Alernators 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 supplied with the OEM Voltage output for PLUG and PLAY alternators. Voltage settings quoted are already built into the Voltage regulator inside the alternator. A reminder that PCM and ECU type vehicles means that your vehicles “brain/computer” controls the voltages.
What is a Bypass?
If you choose to have a bypass you are wiring to bypass the PCM or ECU control, and we customize a Voltage setting for your vehicle (this allows you to have a higher voltage than your PCM or ECU would allow. This in most cases will end up having your battery light on at all times.
Need help wiring your bypass, or have questions fins out more here:
Tutorial videos & Frequently Asked Questions
Warranty: 1 year parts & lifetime labor
Order Time Frames
Build time is 14 days.
Powder Coating adds up to 5 business days
Shipping takes 5-7 days
If you use klarna pay, Sezzle or Affirm add 7 days for processing.
