Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Features, Description, Reviews, Q&A, Specs & Installation
Your Choice for High-Performance Driving. The Accel HP Copper Spark Plug is the ideal option if you're seeking for a high-quality spark plug that will withstand the demands of high-performance driving. This high-quality spark plug is made to provide a stronger spark and better conductivity than platinum and iridium plugs, reducing the likelihood of misfiring. Because of its exceptional build quality and perfect thread engagement, this plug ensures durability and reliable performance.
Installation.Professional Installation is recommended for the Accel HP Copper Spark Plug, but you can install it yourself if you have basic mechanical skill and have the right equipment. It should take about 1 hour to complete the installation.
Warranty.This product comes with a limited lifetime warranty against defects in workmanship.
Application.The Accel HP Copper Spark Plug fits 2008-2010 4.6L and 5.4-L Engine Ford F-150s.
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Fitment:
DetailsAccel 354C1
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Installation Info
Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
What's in the Box
Jun 11, 2024
Review shared from Accel HP Copper Spark Plugs; 4-Pack (97-02 4.6L F-150; 97-98 5.4L F-150)
I LIKE THEM
Thanks good product decent price they work great I love the plugs
Feb 25, 2024
Review shared from Accel HP Copper Spark Plugs; 1 Range Colder (11-25 3.5L EcoBoost F-150)
Seams to help run a little better
Make sure the gap is right for your application if it's tuned or stock
Jan 28, 2024
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (10-25 5.0L, 6.2L F-150)
Must set the gap
Gap must be set on these. Came in about .020-.030 different from stock gap. Fit well and seemed to be good quality. But had issues with coils so didn’t end up using these. Will be returning. Returning plugs and coils.
Jan 24, 2024
Review shared from Accel HP Copper Spark Plugs; 1 Range Colder (11-25 3.5L EcoBoost F-150)
New plugs
Easy to install, i see no performance difference but added with new coil packs i gained 4.1 mpg.
Oct 7, 2023
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (10-25 5.0L, 6.2L F-150)
Spark plugs
Had to set gap other than that easy to install. Not bad for the price.
Oct 2, 2023
Review shared from Accel HP Copper Spark Plugs; 1 Range Colder (11-25 3.5L EcoBoost F-150)
Accel hp copper spark plugs
Gave my truck more power and idled smother It was a straight forward job and went smoothly
Apr 27, 2023
Review shared from Accel HP Copper Spark Plugs (04-08 5.4L F-150)
Quality plug
They work great and I haven't had any issues. Cheap upgrade to keep truck running great.
Apr 11, 2023
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (10-25 5.0L, 6.2L F-150)
Spark plug review
Worked great for my application as the previous plugs had 131,000 miles on them. My truck runs much smoother and better on gas as well.
Dec 2, 2022
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (10-25 5.0L, 6.2L F-150)
Fixed misfire on custom tune
These plugs came gapped a little tight. I would definitely recommend checking before installing. I gapped them at .045. When I pulled the stock plugs they were all nearly at .060 after 98k miles. Did I what I hoping for, fixed my random misfire on cylinder 2 on my MPT custom e85 tune under WOT. There were no misfires on the stock tune. I have some bolt-ons: S&B intake, BBK 85mm throttle body, BBK long tube headers, BBK high flow cats, Borla S-Type cat back, BDX tuner with custom E85 PRX tune by MPT tuning. Arrived next day, looks like they had this in stock in my city. Coils are arriving today, should be good to go for awhile now hopefully.
Nov 9, 2022
Review shared from Accel HP Copper Spark Plugs; 1 Range Colder; 8-Pack (08-10 4.6L, 5.4L F-150)
Accel HP copper spark plugs
Good plugs. Love that they are easy to gap. They seem to be doing all that they are capable.