2003-08 Alternator - 1AEAL00185

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Part Details

  • Voltage / Wattage / Amperage Rating:   135 Amp


  • Brand New, Not Remanufactured Alternator
  • 135 Amps
  • No core charge
  • Direct replacement
  • Correct electrical connections
  • Built to strict quality control standards
This replacement 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.

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

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.

  1. step : Disconnecting the Battery (0:50)
    • Disconnect the negative battery terminal with an 8mm or 5/16 wrench
    • Place the terminal off to the side
  2. step : Removing the Engine Cover (1:13)
    • Remove the engine cover with an open ratchet
  3. step : Removing the Serpentine Belt (1:30)
    • Familiarize yourself with the route of the serpentine belt
    • Insert the 3/8 inch drive ratchet into the tensioner
    • Turn the tensioner clockwise to loosen the belt
    • Pull the belt off the alternator
    • Release the tensioner
    • Pull the belt off by hand
  4. step : Removing the Alternator (2:29)
    • Pry up the wiring harness
    • Lift up the boot
    • Remove the 10mm nut and ground
    • Remove the four 10mm bolts at the top of the alternator
    • Remove the plate
    • Remove the two 10mm bolts at the bottom of the alternator
    • Lift the alternator up and remove it
  5. step : Installing the Alternator (4:38)
    • Insert the alternator and bracket into place
    • Tighten the two 10mm bolts at the bottom of the alternator
    • Tighten the four 10mm bolts at the top of the alternator
    • Connect the wiring harness
    • Connect the ground
    • Tighten the 10mm nut
    • Press on the boot
  6. step : Reinstalling the Serpentine Belt (5:26)
    • Loop the belt around the crank pulley
    • Bring it under the water pump
    • Bring it around the belt tensioner
    • Bring it under the A/C Pulley
    • Bring it around the idler pulley
    • Bring it around the power steering pulley
    • Pull the tensioner clockwise with the 3/8 inch ratchet
    • Pull the belt over the alternator
    • Release the tensioner
  7. step : Installing the Engine Cover (6:49)
    • Install the engine cover with an open ratchet
  8. step : Connecting the Battery (7:11)
    • Connect the negative batter terminal with an 8mm or 5/16 wrench

Tools needed for replacement:

    Ratchets & Related

  • 1/4 Inch Ratchet
  • Socket Extensions
  • 3/8 Inch Drive Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket
  • 10mm Socket

5.00/ 5.0
2 reviews
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1 Star
Fast shipping, outstanding customer service, reasonable pricing! Im very pleased
March 27, 2017
I had purchase an alternator from a local auto repair part place, and had to take it back three, it will not fit my car. I found 1A auto and was very please with my purchase, not only did it fit just right, but I didnt have to send it back. I will tell everybody about my purchase. I know I would get the right part for my car. I also ordered others parts too. All of the parts I ordered was perfect fit for my car. Thank You so much for your perfect parts. Lady De
December 23, 2017
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Year Make Model Description
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2003-2008Mercury Grand Marquis Mercury Grand Marquis Limousine 135 Amp Alternator V8 4.6L
Only 9 left in stock
Part #: 1AEAL00185

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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How-to Video:

(07:35 min)