Rev up your ride! 🚗✨
The Autolite HT1-4PK HT1 Platinum High Thread Spark Plug pack of 4 is engineered for superior performance in Ford 4.6L, 5.4L, and 6.8L 3-valve engines. Featuring a platinum fine wire tip, these spark plugs enhance fuel efficiency, reduce emissions, and improve horsepower while ensuring easy installation with high strength steel technology.
| Thread Size | 5/8" |
| Compatible with Vehicle Type | Car |
| Gap Size | 0.03 Inches |
| Top Material Type | Alloy Steel |
| Core Material | Platinum |
T**N
Works great
Put them in my ford explorer worked great
J**S
Good two piece plug replacement
Recently bought a 2006 Mustang GT that I was having acceleration issues with. Car had 88K miles so I figured it might have the original plugs, but that would mean they were the infamous two-piece Motorcraft plugs that could break when removing. Got the original plugs out and replaced with the HT1s which is an improved one-piece plug. Car’s running great.
C**E
Perfect
The Stang is alive again... no more popping or misfiring at take off.
J**O
Does the job
Can't rate milage just put them in, fit perfect does not need to use never seize.
D**O
price is right, but beware on slite of hand ...
price is right,but beware on slite of hand shipping cost i was charged $39.99 shipping & handling.....
A**R
The product is really good
The best price on Amazon every where else was a little bit more ,the original Autolite plug great
A**R
autolite
have used a lot, have not been disappointed
A**R
Work great!
Bought 8. One was bad out of the box. Other than they they are great!
M**K
Great Spark Plugs
These spark plugs have been performing very well. Anyone with experience trying to remove the old two piece plugs will understand the struggle. I managed to get 7 of the 8 out with out a problem. Had to use the extractor tool to remove the 8th one. I installed these new plugs using the recommended anti seize so they'll be easier to remove in the future.I highly recommend these plugs and would definitely purchase again.
P**F
Great deal
Plugs working great. A very good buy.
B**T
Little slow on delivery but great for price
Great price
J**S
Working perfectly
Very fast shipping
R**T
2006 Mustang GT Did NOT Like These
Put a set of these in my '06 Mustang GT. Drove about 20 minutes before my car began misfiring. I replaced them with genuine Motorcraft plugs, car ran like a dream. These plugs have a gap of around .03, rather than the OEM-recommended .042. Motorcraft plugs have a gap of .054, and for whatever reason, my car definitely preferred the larger gap.Also, buy the Lisle 65600 Broken Plug Remover if you're going to remove this type of spark plug after > 50,000KM. It's a life saver.
Trustpilot
1 day ago
1 month ago