Ignition Coil - 1AERK00130

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Part Details

  • Quantity:   4 Piece Set


  • Set of 4 - Ignition Coils
  • New not remanufactured
  • Replaces dealer part numbers: 4M5E-12A366-AA, 4M5G-12A366-BA, 4M5G-12A366-BB, 4M5G-12A366-BC, 4M5E12A366AA, 4M5G12A366BA, 4M5G12A366BB, 4M5G12A366BC, DG501, DG504, DG507, DG541, LF161-8100A, LF161-8100A, LF1618100A, LF1618100A
  • Built to strict quality control standards
  • Direct replacement
  • 100% factory tested
  • Fits the following Ford/Mazda 4 cylinder engines as listed per application:
    • L4 2.0L
    • L4 2.3L


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.

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.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

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 : Removing the Ignition Coil (0:31)
    • Push on the tab and disconnect the ignition coil wiring harness
    • Remove the 8mm bolt
    • Pull the ignition coil up and out
  2. step : Installing the New Ignition Coil (1:08)
    • Push the ignition coil into place
    • Insert and tighten the 8mm bolt
    • Connect the ignition coil wiring harness
    • Repeat the process for all four

Tools needed for replacement:

    Ratchets & Related

  • Ratchet

  • Sockets - Metric

  • 8mm Socket

4.86/ 5.0
7 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Most excellent definitely did what I asked. Im coming back
January 25, 2017
1A AUTO A marvelous and exemplary bussiness
This company does an extraordinary an invaluable service teaching car aficionados how to repair or replace defective parts in their cars and saving them, along the way, lots of money. Their division of Parts Sales is very easy to understand and fast to navigate as the process of buying and paying. The packaging is as expected very much professional and the shipping fast. With regard to prices after searching on the Internet it appeared to me as if there was an error because they are fair and therefore super affordable. I, wholeheartedly , recommend buying from them. Keep the good work and greetings to all of you. Carlos J. Sevilla-Moreira.
February 1, 2017
Focus ignition coil replacement
This product seems to be the same as the original equipment. So far all coils are functioning properly. Handling tips on removal of old coils and installation instructions of new coils would have been helpful.
February 17, 2017
Perfect part
Quick shipping and very competitive prices as compared online and in stores. Just as described.
February 26, 2017
Will buy all my car parts from you
My check engine light was on went to Auto zone they wanted 40 dollars for one,checked around and found you place on line cheaper than anyone thank youWrite
May 2, 2018
Great place to shop
I will never shop anywhere else for parts. You guys are the greatest
June 5, 2018
Ignition Coils for 2003 Ford Focus
1A Autos parts were in great condition and almost identical to the original parts. They shipped in a timely manner and arrived right on time. I will definitely purchase from 1A Auto in the future.
October 17, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
IRA H August 2, 2017
Could you supply your vehicle VIN, or confirm if its a V6 or 4 cylinder engine?
Alex P August 2, 2017
Do i have just engine coils in my 2012 ford focus or do i have spark plugs wires and a distributor cap as well? Do i replace all of these for a tune up?
Dianne R May 14, 2018
Just spark plugs and the 4 coil packs, wires and caps are a thing of the past.
Bruce F May 14, 2018
Your have plugs and coils. I had a miss I could not find,so I changed all 4 plugs and coil. It worked well. No need to change every tune up. Good for 75,000 miles on coil and 20,000on plugs.
Alan P May 15, 2018
Best method is once a year for plugs every 2 years for wires and coils and boots
Paul K December 2, 2018
Year Make Model Description
2005-2008Ford Escape Ford Escape Ignition Coil 4 Piece Set L4 2.3L
2003-2004Ford Focus Ford Focus Ignition Coil 4 Piece Set L4 2.3L
2005-2011Ford Focus Ford Focus Ignition Coil 4 Piece Set
2010-2013Ford Transit Connect Ford Transit Connect Ignition Coil 4 Piece Set L4 2.0L Gas Engine
2004-2005Mazda 3 Mazda 3 Ignition Coil 4 Piece Set
2005Mazda 6 Mazda 6 Ignition Coil 4 Piece Set L4 2.3L Automatic Transmission with
2005-2006Mazda Tribute Mazda Tribute Ignition Coil 4 Piece Set L4 2.3L
2008Mazda Tribute Mazda Tribute Ignition Coil 4 Piece Set L4 2.3L
2005-2008Mercury Mariner Mercury Mariner Ignition Coil 4 Piece Set L4 2.3L
Part #: 1AERK00130

Order must be placed by 4pm ET
Delivery options for:

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:

(01:47 min)