Replaces

1983-1985 Chevy El Camino Alternator 66-78 Amp

  • New

Specifications

  • 78 Ampere Alternator

Fit guaranteed

  • This NEW alternator will install just as your original does.
  • Designed to fit your original engine brackets.
  • **NOTE: This alternator comes with a V-belt pulley as pictured. If your vehicle has a 6-groove pulley, you will have to remove and reuse your original pulley**.
  • Your existing wiring harness will attach with no modification.
  • Installation Instructions (pdf) included in English, Spanish, and French

Quality

    • This Alternator will give you trouble free performance
    • Each unit is individually tested.
      • You'll receive a report with your alternator that shows its performance.
      • Example (pdf)
  • New vs. Remanufactured
    • Nothing is more frustrating than pulling off the side of the road with a failed alternator. That is why we carry only new alternators which are 94% more reliable than remanufactured alternators.
    • Our Alternators are 100% NEW. Castings, pulleys, fans, hardware, internal parts, etc. are all new.
    • No Core Charge; No hassling with an old core
This replacement 78 Amp Alternator is just what you need to get your vehicle in good working order again. If your battery is no longer being charged completely, or at all, this Alternator may be the solution for you.

Ensure fit

  • Please verify the picture matches the alternator in your vehicle. If you think there is a difference please call us to toll free 888-844-3393 to verify fit.
  • For some vehicles we provide the VIN engine code to match. Match the 8th digit (5th digit on 1979 and earlier) of your VIN number to the VIN code in the title.
  • Examples
  • 1975 Buick Apollo Alternator 250ci (5th VIN Digit D) With A/C 63 Amp
    If you have a 1975 Buick Apollo you want to make sure the 5th digit of your VIN is D and you have Air Conditioning
    1973 Buick Centurion Alternator 455ci With A/C 63 Amp
    This alternator will fit a '73 Centurion with a 455 cubic inch engine and Air Conditioning.
  • Your vehicles VIN number can be found in the lower left corner of the windshield or on your registration.

Shipping Note:

Sorry, but we can only ship this product to physical addresses in the U.S. Continental 48 states.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. Disconnecting the Battery (0:56 in the video)
    • Disconnect the negative battery cable
  2. Accessing the Alternator (1:03 in the video)
    • Remove the thumbscrew from the air cleaner
    • Loosen the air cleaner hose clamp
    • Disconnect the air cleaner hose
    • Pull out the air cleaner
    • Remove the 1/4 inch bolt from the A/C line bracket
    • Pull the A/C lines aside
  3. Removing the Alternator (1:32 in the video)
    • Disconnect the alternator wiring harness
    • Remove the 10mm nut from the alternator battery lead
    • Disconnect the battery lead
    • Loosen the 9/16 inch bolt from the alternator
    • Loosen the 1/4 inch bolt from the alternator
    • Pull the belt from the alternator
    • Remove the nut from the back of the alternator
    • Remove the 9/16 inch bolt and the 1/4 inch bolt from the alternator
    • Pull the alternator up and out
  4. Preparing the New Alternator (3:38 in the video)
    • Transfer the bracket from the old alternator to the new one
    • Insert a T50 Torx bit into the alternator shaft on the new alternator
    • Remove the 15/16 inch nut from the new alternator
    • Remove the pulley from the new alternator
    • Remove the pulley from the old alternator and transfer it to the new one
    • Match the position of the post on the new alternator to the old one
    • For more detailed instructions on changing the post position, please see our other videos
  5. Installing the New Alternator (5:23 in the video)
    • Put the new alternator into place
    • Start the 9/16 inch bolt into the alternator
    • Start the 1/4 inch bolt into the alternator
    • Fasten the nut onto the back of the alternator
    • Connect the alternator wiring harness
    • Connect the battery lead
    • Fasten the nut onto the battery lead
    • Put on the battery lead boot
    • Pull the belt onto the alternator
    • Pull the alternator up with a pry bar to tighten the belt
    • Tighten the two bolts into the front of the alternator
  6. Reconnecting the Battery (6:45 in the video)
    • Reconnect the negative battery cable
  7. Reinstalling the Air Cleaner (9:13 in the video)
    • Put the A/C lines onto their bracket
    • Insert the bolt into the A/C line bracket
    • Put the air cleaner into place
    • Connect the air cleaner hose
    • Tighten the air cleaner hose clamp
    • Fasten the thumbscrew onto the air cleaner

Tools needed for replacement:

    Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Pry Bar

  • Sockets - Metric

  • 10mm Socket
  • 11mm Socket
  • 12mm Socket
  • 13mm Socket
  • 14mm Socket
  • 15mm Socket

  • Sockets - SAE

  • 1/2 Inch Socket
  • 7/16 Inch Socket
  • 9/16 Inch Socket

  • Wrenches - Metric

  • 10mm Wrench
  • 11mm Wrench
  • 12mm Wrench
  • 13mm Wrench
  • 14mm Wrench
  • 15mm Wrench

  • Wrenches - SAE

  • 1/2 Inch Wrench
  • 7/16 Inch Wrench
  • 9/16 Inch Wrench

How-to Video:

(09:54 min)

Tools List:

    Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Pry Bar

  • Sockets - Metric

  • 10mm Socket
  • 11mm Socket
  • 12mm Socket
  • 13mm Socket
  • 14mm Socket
  • 15mm Socket

  • Sockets - SAE

  • 1/2 Inch Socket
  • 7/16 Inch Socket
  • 9/16 Inch Socket

  • Wrenches - Metric

  • 10mm Wrench
  • 11mm Wrench
  • 12mm Wrench
  • 13mm Wrench
  • 14mm Wrench
  • 15mm Wrench

  • Wrenches - SAE

  • 1/2 Inch Wrench
  • 7/16 Inch Wrench
  • 9/16 Inch Wrench




Vehicle Fit

  • 1985 Chevy Astro Alternator 66-78 Amp
  • 1983-1990 Chevy Blazer Full Size Alternator 66-78 Amp
  • 1983-1986 Chevy C10 Truck Alternator 66-78 Amp
  • 1983-1986 Chevy C20 Truck Alternator 66-78 Amp
  • 1983-1986 Chevy C30 Truck Alternator 66-78 Amp
  • 1983-1987 Chevy Caprice Alternator 66-78 Amp
  • 1983-1985 Chevy El Camino Alternator 66-78 Amp
  • 1983-1985 Chevy Impala Alternator 66-78 Amp
  • 1983-1986 Chevy K10 Truck Alternator 66-78 Amp
  • 1983-1986 Chevy K20 Truck Alternator 66-78 Amp
  • 1983-1986 Chevy K30 Truck Alternator 66-78 Amp
  • 1983 Chevy Malibu Alternator 66-78 Amp
  • 1983-1985 Chevy Monte Carlo Alternator 66-78 Amp
  • 1983-1986 Chevy Suburban C10 Alternator 66-78 Amp
  • 1983-1986 Chevy Suburban C20 Alternator 66-78 Amp
  • 1983-1986 Chevy Suburban K10 Alternator 66-78 Amp
  • 1983-1986 Chevy Suburban K20 Alternator 66-78 Amp
  • 1983-1990 Chevy Van - P Series Forward Control Alternator 66-78 Amp
  • 1983-1990 Chevy Van G-Series Alternator 66-78 Amp
  • 1983-1991 GMC C1500 Truck Alternator 66-78 Amp
  • 1983-1991 GMC C2500 Truck Alternator 66-78 Amp
  • 1983-1991 GMC C3500 Truck Alternator 66-78 Amp
  • 1983-1985 GMC Caballero Alternator 66-78 Amp
  • 1983-1990 GMC Jimmy Full Size Alternator 66-78 Amp
  • 1983-1991 GMC K1500 Truck Alternator 66-78 Amp
  • 1983-1991 GMC K2500 Truck Alternator 66-78 Amp
  • 1983-1991 GMC K3500 Truck Alternator 66-78 Amp
  • 1985 GMC Safari Alternator 66-78 Amp
  • 1983-1990 GMC Suburban Alternator 66-78 Amp
  • 1983-1990 GMC Van Alternator 66-78 Amp
  • 1983-1990 GMC Van - P Series Forward Control Alternator 66-78 Amp
  • 1983-1985 Jeep CJ8 Scrambler Alternator 66-78 Amp
  • 1986 Pontiac Bonneville Alternator 66-78 Amp
  • 1983-1986 Pontiac Parisienne Alternator 66-78 Amp
$107.95
Save 41%
List: $182.95 Save: $75.00
Only 0 left in stock
Part #: 1AEAL00050

- Ships in 1-3 Business Days. Delivery times vary.

We're here to help

Customer Feedback

Customer Feedback
"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
Read More
Free Shipping!
OR
CALL
TOLL
FREE

888-844-3393

hablamos Español:866-401-3393
SHIPS SAME DAY
For Orders Placed By 5pm Est