⚡ Ignite your drive with Ford Racing precision!
The Ford Racing M-12405-35T Cold Spark Plug Set is a high-performance upgrade designed specifically for 2010-2017 3.5L EcoBoost engines. Featuring a copper core for enhanced conductivity, a precise 0.03-inch spark gap for optimal ignition, and a perfect M14x1.25 thread size for seamless fitment, these plugs deliver reliable starts, improved fuel efficiency, and race-inspired durability—all wrapped in a sleek painted exterior for added protection.
| Brand | Ford |
| Core Material | Copper |
| Gap Size | 0.03 Inches |
| Thread Size | M14x1.25 |
| Vehicle Service Type | Car |
| UPC | 756122008324 |
| Manufacturer | Ford Racing |
| Model | Ford M-12405-35T |
| Item Weight | 13.4 ounces |
| Product Dimensions | 10.75 x 4.5 x 4.5 inches |
| Item model number | M-12405-35T |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | M-12405-35T |
J**S
Great if you are running a tune
These work great on my 2013 F150 3.5L Ecoboost. No more misfires when running the 93 performance tune. I Highly recommend these if you are running a tune.
A**R
Performance worth the price
OEM new version but exact fit for 2.7 Ecoboost engine. Worth it, great performance and easy installation
J**.
Good plugs, seem to be higher quality than the NGK off the shelf at the parts house.
So far so good, switched from the NGK Iridium plugs in my Raptor to these and this is the first time I've installed a whole set and not had any cracked porcelains or defective plugs since I bought my truck (yes I used a torque wrench and properly torque them). Hopefully they last but so far the quality seems to be significantly better than the NGK branded plugs on Amazon and my local parts house.
T**S
2020 Limited 3.5 HO
Use to replace my stock plugs at 40k after I got the 5 star tune. This helped stop the little stuttering at idle and the truck runs a lot smoother and cleaner. I got these per 5 stars recommendations as they are high performance. This was the easiest tune up I’ve never done, took me 20 minutes,10 minutes per side. Just make sure to get dielectric grease. I bought the boots but my truck came with a different kind of boot. Only problem is that if one of them breaks or is bad and you need to replace it you cannot buy them individually. Ford doesn’t even sell this part number anymore and you have to special order the spark plug if you need to replace one. The gap is closer is closer to .28 but if you’re tuned that’s ok. Honestly for the price and how fast you get them you can’t beat them, but I did have one go bad and I had to pay $13 to try to find one individually at that point you might as well just buy a new set.
E**M
Best replacement for 2.7L Ecoboost motors.
Direct replacement for my 2018 F150 2.7L Ecoboost motor. 45 minutes and the job was done. Make sure you use dielectric grease on the threads of the spark plugs and do NOT overtighten them.
B**S
Works great in my 2017 FPIU 3.5 Ecoboost
Replaced my plugs in my Police Explorer because I had a misfire sometimes. Turns out I had some small cracks in the plugs I removed. The new ones were much better and performance is great.
S**N
Used parts, paid for new
Set of 6 and I received 1 that’s used. Either ford refurbs spark plugs and it never was never cleaned or somebody swapped it. Frustrated because there is no option to have a new plug sent out to replace this.
T**C
They Are Real!
Got the same plugs from 5startuning and matched the boxes to Amazon, they are legit!
Trustpilot
1 week ago
5 days ago
