TRQ ignition coils will have your engine running like new. TRQ ignition coils are manufactured to precise specifications using premium raw materials to optimize each vehicle's ignition system. To ensure peak performance, TRQ recommends replacing ignition coils in sets to prevent electrical output imbalances. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.
Product Features
High dielectric epoxy and reinforced bobbins for extended service life
Rubber, Silicone, or Phenolic Resin Shell: Prevents premature boot wear
Application Specific Design: No modifications required
Complete repair to restore your engine to like-new condition
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 www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories. Shipping is not available to Canada.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.
How To Install Replace Engine Ignition Coil 2003-11 Ford Focus
Created on:
Tools used
8mm Socket
Ratchet
1. Removing the Ignition Coil
Push on the tab and disconnect the ignition coil wiring harness
Remove the 8mm bolt
Pull the ignition coil up and out
2. Installing the New Ignition Coil
Push the ignition coil into place
Insert and tighten the 8mm bolt
Connect the ignition coil wiring harness
Repeat the process for all four
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and the next time you need a part for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace an ignition coil on this 2005 Ford Focus with the 2-liter 4-cylinder engine. The only items you'll need for this are a new ignition coil from 1AAuto.com and an 8mm socket and ratchet.
Your ignition coils are located right here, and each one is held in with an 8mm bolt. Start off by pushing the tab on the harness, disconnect it, and then remove that 8mm bolt. Once that's removed, the ignition coil will pull up and out.
On the right is the old ignition coil; on the left is the new one from 1A Auto. You can see that they're identical, and they'll fit exactly the same. Push the ignition coil down into place and replace that 8mm bolt. You'll want to repeat this process for all four, reconnect the harness, and then you're all set.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
ICA61540
In Stock
Product Reviews
Loading reviews
4.96/ 5.027
27 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
26
1
0
0
0
??
Steven
January 25, 2017
Most excellent definitely did what I asked. I'm coming back
1A AUTO A marvelous and exemplary bussiness
Maria Magnolia
February 1, 2017
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.
Focus ignition coil replacement
Victor
February 17, 2017
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.
Perfect part
vincent
February 26, 2017
Quick shipping and very competitive prices as compared online and in stores. Just as described.
Will buy all my car parts from you
S
May 2, 2018
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
Great place to shop
K
June 5, 2018
I will never shop anywhere else for parts. You guys are the greatest
Ignition Coils for 2003 Ford Focus
L
October 17, 2018
1A Auto's 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.
Great parts
Cole
April 7, 2019
These coils are awesome working parts that were an absolutely perfect fit I've had them in Ford Focus for a couple weeks now and they restored the powers down fuel mileage I had lost and solved the miss fire I was experiencing. Thanks 1A Auto
Rosa
April 26, 2019
Thanku those wear the Write one for my car I will definitely will still keep buying from you guys ended the delivery is very quick I like that
Worked great, Price was great and shipping was fast and free
Mike
June 9, 2019
Ordered for my sons car and they were a great high quality aftermarket of the factory ones I replaced. Price was right shipping was free and fast. Always have confidence in parts Ive order from 1A.
great value
Chris
October 2, 2019
Awesome Thanks
4 peace Ignition coil set
J
June 29, 2020
4 Peace Ignition coil set for a 2006 ford escape 2.3 leader... From 1A auto parts... Website was easy to follow and order parts came in on time, high quality...Very happy with the purchase and will definitely use them again I recommend to any mechanic to use them as well....
Best Quality, Best Prices
M
August 23, 2020
First time buying on your website and I've got to say not only was my parts for my car the correct ones, it's that they worked and was easy to install. Also your guy's prices as well was too good to pass up. Thank you again for fast FREE shipping and keeping me up to date on my package.
Bernerd
February 1, 2021
Excellent replacement parts and easy to install from the video.
Great
Michael
May 13, 2021
Worked exactly how they should.
New Coils make a difference!!
Luis
August 31, 2021
These fit my sedan 2.0 Ford Focus just perfect. Actually, the hesitation I had has gone away period.
Perfect
James
September 21, 2021
The equipment performed as described, but more importantly, the lower price was the true "Coil to my Ignition" .... LOL
Great coils at a great price in a timely manner
Kenneth
October 20, 2022
2006 Ford Focus ZX5 with 265,000 miles
After watching the A1 Auto videos they have on YouTube, I decided to try ordering from A1 Auto. The coils I ordered were delivered in a timely manner and the seem to be working well at a reasonable price. I have had them in for a couple weeks now and the car seems to be running smoothly with them. Better then it did before replacing my coils. I would definitely order again.
So far so good
Gabriel
February 15, 2023
So far so good. While I was replacing them, I replaced all the spark plugs as well. Taking my sweet time I had it all done in about an hour.
Hard to beat!!!
Douglas
October 8, 2023
I ordered these spark plug coils for my 2004 Ford Focus ZX3 2.3 liter engine. The price and the quality of the coils could not be matched by any of the Autoparts stores. I also ordered the same brand for spark plugs. They fit perfectly and my car is getting the best gas mileage I've seen since it was brand new! I highly recommend 1AAuto.com! They are #1 on my list of online Autoparts!!!
Benjamin
January 19, 2024
Got coils on time and were exact fit car running great
Great price for great coils
Juan
February 16, 2024
These were for a customers 2011 ford transit connect who was having misfire issues on a cylinder. These coils fix the problem and customer claims he feels the van runs a lot better. The coils looked great and the material was just like the oem ones the van had. The price and quality of the coils are absolutely great. Would recommend it to anyone...
Alejandro
February 17, 2024
Perfect
Larry
March 15, 2024
Everything was what I expected and is working fine. Will consider 1A again.
Perfect match, quick repair
James
April 4, 2024
I'm no mechanic, but even I could install these. They fit like the OEM parts and restored my car to full functioning in minutes.
Great product.
Jack
April 10, 2024
Great product an priced right.
Shawn
May 5, 2024
I ordered. They shipped. I installed. They work.
Textbook.
Customer Q&A
HOW DO DETERMINE ENG. SIZE? 2.3 OR OTHER ON MY 2005 MAZDA TRIBUTEAugust 2, 2017
IRA H
10
Could you supply your vehicle VIN, or confirm if it's a V6 or 4 cylinder engine?
August 2, 2017
Alex P
10
4 cylinder
June 21, 2020
Timothy D
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?May 14, 2018
R O
10
Just spark plugs and the 4 coil packs, wires and caps are a thing of the past.
May 14, 2018
Bruce F
10
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.
May 15, 2018
Alan P
10
Best method is once a year for plugs every 2 years for wires and coils and boots
December 2, 2018
Paul K
10
yes if you want a correct tune up replace them all
December 30, 2020
J O
Customer service
877-844-3393
Monday - Friday 8:00am - 9:30pm ET Saturday - Sunday 8:00am - 4:30pm ET
Mercury is a registered trademark of Ford Motor Company. 1A Auto is not affiliated with or sponsored by Mercury or Ford Motor Company.See all trademarks.
Enter Vehicle Year Make Model
Specify your vehicle's year, make and model to guarantee fit.
Year
Make
Model
Options
Drivetrain
This part doesn’t fit a . Select from parts that fit.