The ignition coil is a crucial part of your ignition system. It's function is to convert the 12 volt power of your vehicle's electrical system in to 35,000 or more volts. This produces a high intensity spark at the spark plug which then ignites the fuel in the cylinder. Coils in general will wear out over time. This will cause a misfire condition. In engines like this with one coil per cylinder you can diagnose a coil by putting a timing light on each one to make sure it is lighting the light consistently.


  • SET contains 10 Coils
    • Enough for one 10 Cylinder Engine
  • New not remanufactured
  • Replaces dealer part numbers: 3W7Z-12029-AA, 1L2U-12A366-AA, 3W7E-12A366-AA, F7TU-12A366-CC, 3W7Z12029AA, 1L2U12A366AA, 1L2UAA, 3W7E12A366AA, 3W7EAA, DG508, F7TU12A366CC, F7TUCC
  • Built to strict quality control standards
  • Direct replacement
  • 100% factory tested
  • Fits SOHC (Single Overhead Cam) engines only

This coil set is for a distributorless application. Sold as a set of 10. If you need a single coil, please see our other listings.


Returns Note:

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed.

Direct Fit Replacement

Guaranteed to fit and function properly for your specific application.

Optimum Performance

Meets or exceeds requirements of the vehicle. Provides the correct primary and secondary resistance, voltage output, and spark energy needed to restore original operating condition.

Premium Quality

Manufactured with quality materials to meet highest quality control standards in the industry.

Part Details

  • Quantity: 10 Piece Set

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 : Disconnect your battery (0:23)
    • Use an 8 mm wrench to disconnect your negative battery terminal
  2. step : Remove the ignition coil (0:31)
    • Unbolt the ignition coil with your 7 mm socket, ratchet and extension.
    • Unplug the wiring harness
  3. step : Install the new ignition coil (2:23)
    • Bolt the ignition coil down with your 7 mm socket.
    • Reconnect the wiring harness.
  4. step : Service the rest of the ignition coils. (3:27)
    • Repeat steps 2 and 3 until you have serviced all the coils.
    • Reconnect your negative battery terminal with your 8 mm wrench.

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Sockets - Metric

  • 7mm Socket

  • Wrenches - Metric

  • 8mm Wrench

5.0 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Service Reveiw.
All items purchased received have been great.
Will be using 1-A again, as we have several vehicles.
Thank You.
Steve M Seitz.
August 15, 2018
3 weeks ago
Cost effective
I get parts from local parts houses at discounted rates due to being a business owner. These are the same thing they carry, but for much cheaper. Used on my personal vehicle. Great buy!
May 10, 2018
3 months ago
Perfect fit
Coils were a perfect fit for my 2001 Excursion. All signs of a misfire are gone and now running like new. Best price I could find anywhere and the free shipping is always a plus. Definitely would recommend as a cheap tuneup.
September 23, 2017
11 months ago
f250 v10
they are working good in my 2003 f250 v10. Replacement was easy.
January 24, 2017
1 year ago
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Vehicle Fit

Year Make Model Description
1997-1998Ford E250 Van Ford E250 Van Ignition Coil 10 Piece Set V10 6.8L
2004-2008Ford E250 Van Ford E250 Van Ignition Coil 10 Piece Set V10 6.8L
1997-2008Ford E350 Van Ford E350 Van Ignition Coil 10 Piece Set V10 6.8L
1997-2003Ford E450 Van Ford E450 Van Ignition Coil 10 Piece Set V10 6.8L
2002-2003Ford E550 Van Ford E550 Van Ignition Coil 10 Piece Set V10 6.8L
2000-2005Ford Excursion Ford Excursion Ignition Coil 10 Piece Set V10 6.8L
1999-2004Ford F250 Super Duty Truck Ford F250 Super Duty Truck Ignition Coil 10 Piece Set V10 6.8L
1999-2004Ford F350 Super Duty Truck Ford F350 Super Duty Truck Ignition Coil 10 Piece Set V10 6.8L
1999-2003Ford F450 Truck Ford F450 Truck Ignition Coil 10 Piece Set V10 6.8L
1999-2003Ford F550 Truck Ford F550 Truck Ignition Coil 10 Piece Set V10 6.8L
Part #: 1AERK00090

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(03:47 min)