About TRQ: TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
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
Description
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.
Returns: Parts with electrical components cannot be returned once installed.
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
5.0/ 5
★★★★★
30 reviews
5★
29
4★
1
3★
0
2★
0
1★
0
★★★★★May 30, 2026
Still going Strong after years!
I bought these coils a couple years ago and they're still running strong as ever! Easy plug and play install, and they have a really good quality field to them. I couldn't be happier with my purchase.
★★★★★April 13, 2026
Good product
Works perfectly
★★★★★April 8, 2025
Ignition Coils
Car running great, hopefully they last. They seem to be of good quality.
★★★★★May 5, 2024
I ordered. They shipped. I installed. They work.
Textbook.
★★★★★April 10, 2024
Great product.
Great product an priced right.
★★★★★April 4, 2024
Perfect match, quick repair
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.
★★★★★March 15, 2024
Everything was what I expected and is working fine. Will consider 1A again.
★★★★★February 17, 2024
Perfect
★★★★★February 16, 2024
Great price for great coils
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...
★★★★★January 19, 2024
Got coils on time and were exact fit car running great
Showing 1–10 of 30 reviews
Customer Q&A
Got a question about this part? Post it and get answers from our team.
RMay 14, 2018
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?
yes if you want a correct tune up replace them all
J · December 30, 2020
IRAAugust 2, 2017
HOW DO DETERMINE ENG. SIZE? 2.3 OR OTHER ON MY 2005 MAZDA TRIBUTE
4 cylinder
Timothy · June 21, 2020
Showing 1–2 of 2 questions
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