★★★★★
September 29, 2025
Best value available
Great product. Great price. Fast shipping.
Replaces
Part Details
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
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 and Alaska.
Shipping is not available to a P.O. Box, APO/FPO/DPO addresses, US Territories, or Canada for this item.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii.
Final shipping costs are available at checkout.
Created on:
Tools used
Hi, I’m Mike from 1A Auto. We’ve been selling auto parts for over 30 years!
Hi everyone, Sue here at 1A Auto. And today, we're going to show you how to replace your ignition coils on a 4.7 liter on our '03 Tundra today. If you need this part or any other part for your car, click on the link below and head on over to 1AAuto.com.
Hood releases on the driver's side knee kick panel. It's marked clearly with a hood popping open. Pull on the handle. The safety latch is to the right of the Toyota symbol. You'll feel a flat piece of metal there. Push up on it.
10-millimeter socket, and you loosen up the mounting bolt. You just take the mounting bolt right out, and put it aside. And you can just grab that coil and twist it and pull straight up. Now we can grab the connector a little bit easier, push on this tab, and pull up on it. There we go. And there we have a coil.
Here we have the new coil from 1AAuto.com and the coil that we took out of our '03 Tundra. As you can see, they needed them. There was a hairline crack, and they did some sort of like rubber repair here, maybe with RTV. That's a good band aid to get you out of the woods, but you still have a misfire. The coil from 1A Auto has the water seal. It's got the four-prong with the lock connector, mounting bolt. It's identical. This says Toyota on it. It's a factory part. If you need this part or any other part for your car, click on the link below, and head on over to 1AAuto.com.
Before I reinstall the coil, I like to put a little silicone paste on the tip. That just makes a good smooth contact, and on the boot, so that a little water resistant buildup. And then you're just going to slide it down in there. Line up the mounting bolt and push down firm. I'm going to click on the connector. Hear that snap. Grab that mounting bolt. And then tighten it down. You just want it tight. Once it bottoms out, use a little quarter turn. Repeat this process eight times on this 4.7 liter.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
ICA61496
Great product. Great price. Fast shipping.
My car runs like a top. Very happy
This set looks much better built than the cheap aftermarket set I installed just 18 months ago.
Work as they should
Berry good product and good cuality
One coil pack was inop after install causing a miss fire. So I had to get one from Advanced Auto and it clear d the miss fire. Other then that no issues.
These have worked great. Engine is still running strong after having these installed for over 20000 miles.
Arrived quickly, installed without issue, fit good.
Thanks very good prices
First of all, I have ordered a handful of items over the years and not had any issues with the product or with replacements. I will also still use this company for most of my aftermarket needs for basics such as suspension parts, tail lights,etc. However, this ignition coil set has been disappointing. I have a 2006 Tundra with 220K miles. I replaced the factory coils approximately 6 months ago with the listed ones. The truck ran well enough--I didn't notice a real change, but then I wasn't having any problems; the factory coils were old and I decided to replace them as a preventative measure. Now the truck is running rougher and idles rougher. I'm not showing any error codes yet but I know it's coming. I reached out to 1A with a proposal for upgrading to the "performance" version (and pay the difference in cost) since I don't trust the baseline version now that they are failing, but the policy is they will only replace the defective coil. If I want to try the performance coi
As far as I can recall, they're made in Japan. I bought them sometime ago for my daughter's car (Hunydia) and they were the same as the once that came with her car & till today they are still going strong. Good buy all around.
I don't recall if there was any brand shown but they worked perfectly, the same as original equipment.
