• 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.  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

Direct fit replacement part is guaranteed to fit and function properly for your specific application.

Optimum Performance

Optimal performance, TRQ ignition coils are designed to meet or exceed the requirements of the vehicle.  TRQ ignition coils provide the correct primary and secondary resistance, voltage output, and spark energy that the vehicle needs to restore to its original operating condition.

Premium Quality

Manufactured with quality components and materials by using advanced technology to meet the highest quality control standards in the industry.

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. 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

4.8 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Great place to shop
I will never shop anywhere else for parts. You guys are the greatest
June 5, 2018
1 month ago
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
2 months ago
Perfect part
Quick shipping and very competitive prices as compared online and in stores. Just as described.
February 26, 2017
1 year ago
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
1 year ago
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
1 year ago
Most excellent definitely did what I asked. I'm coming back
January 25, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 3 answers
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 on May 14, 2018
BEST ANSWER: 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.
IRA H on Aug 2, 2017
BEST ANSWER: Could you supply your vehicle VIN, or confirm if it's a V6 or 4 cylinder engine?

Vehicle Fit

  • 2005-2008 Ford Escape Ignition Coil 4 Piece Set L4 2.3L
  • 2003-2004 Ford Focus Ignition Coil 4 Piece Set L4 2.3L
  • 2005-2011 Ford Focus Ignition Coil 4 Piece Set
  • 2010-2013 Ford Transit Connect Ignition Coil 4 Piece Set L4 2.0L Gas Engine
  • 2004-2005 Mazda 3 Ignition Coil 4 Piece Set
  • 2005 Mazda 6 Ignition Coil 4 Piece Set L4 2.3L Automatic Transmission with
  • 2005-2006 Mazda Tribute Ignition Coil 4 Piece Set L4 2.3L
  • 2008 Mazda Tribute Ignition Coil 4 Piece Set L4 2.3L
  • 2005-2008 Mercury Mariner Ignition Coil 4 Piece Set L4 2.3L

This part replaces:

  • OE # ZZCA18100 x4
  • OE # 4M5G12A366BC
Part #: 1AERK00130

How-to Video:

(01:47 min)