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Autolite High Thread Spark Plug: Enhanced Durability & Focused Ignition

(3 reviews)
Part # HT0
4 year warranty
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Product Information

Product Details
Part No. HT0
Warranty Details (4 Year Warranty)
Autolite High Thread Pro plugs are expertly crafted to deliver exceptional performance for Ford 3V engines. Featuring a fine-wire platinum center electrode with an extra-long special projection, these plugs ensure a more focused ignition and extended service life. The proprietary design enhances heat management, fouling resistance, and dielectric strength, while the ground strap improves heat transfer compared to standard J-gap plugs. The thread position above the cylinder head seating creates a compressive seal, boosting durability and power. With a nickel-plated shell, these plugs offer superior corrosion resistance, ensuring long-lasting reliability. Designed for performance-grade applications, they are the ideal choice for maintaining optimal engine efficiency and power.

Product Features:
  • Engineered with a fine-wire platinum design that provides more focused ignition power and longer service life.
  • The ground strap provides improved heat transfer over standard J-gap plugs.
  • Its proprietary design improves performance for heat management, fouling resistance & increased dielectric strength.
  • The position of the thread above the cylinder head seating allows for a more compressive seal.
  • Designed with a nickel-plated shell that delivers increased protection against corrosion.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Fine Wire

Center Electrode Projection:
Extra-Long Special

Center Electrode Tip Material:
Platinum

Electrical Terminal Type:
Non-Removable Nut

Electrode Tip Material:
Platinum

Grade Type:
Performance

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Hex Size:
5/8 in

Hex Type:
Hex

Indexed:
No

Insulator Material:
Ceramic

Manufacturer Heat Range:
12

Pre-Gap Size:
0.035 in

Reach:
0.867 in

Resistor:
Suppressor

Resistor Type:
Yes

Seat Type:
Tapered

Skirt:
Yes

Thread Diameter:
16 mm

Tip Configuration:
Power

Washer(s) Included:
No

Wrench Diameter:
9/16 in
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4.67 out of 5
3 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
2
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Pros
No Pros
Cons
No Cons
Reviewed by 3 Customers
HT0 Plugs
I use these in my Turbocharged 06 Mustang GT. They are a must if you are forced inducted or nitrous. The 2 piece design is not that big of a headache if you actually maintain your vehicle. Laters...
Bottom Line Yes, I would recommend to a friend
Yes
Verified Buyer -
Quick and easy. Also received 20% off for ordering online
Happy they were in stock at my local store
Verified Buyer -
Hard to find one step colder plugs are just what I needed for my turbo mustang. Good price with coupon and happy I could pick up locally.
Displaying Reviews 1 - 5Back to Top
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