Autolite HT2 Spark Plug

Reliable Ignition Performance for Ford Vehicles

The Autolite Platinum Spark Plug HT2 is engineered to deliver consistent ignition performance for Ford trucks and muscle cars. Designed specifically for models like the Ford F-150, F-250 Super Duty, F-350 Super Duty, and Mustang, this spark plug ensures efficient combustion and reliable starts.

• Platinum center electrode tip for enhanced durability
• Fine wire copper core center electrode for improved conductivity
• Tapered ground electrode tip made of nickel for precise spark delivery
• Extra-long special ceramic insulator for superior heat dissipation
• Resistor type with 5000 ohms resistance to reduce electrical noise
• Stud-type electrical terminal for secure connection
• Tapered seat and 0.750 inch reach for proper fitment
• Hex size 9/16 inch (14 mm) for standard installation tools

About the Autolite Platinum Spark Plug Line

The Platinum Spark Plug line from Autolite focuses on combining durability and performance through advanced materials and design. Featuring a platinum tip on the center electrode, these plugs provide longer service life and stable ignition compared to conventional plugs. The fine wire copper core enhances electrical conductivity, while the extra-long ceramic insulator improves heat management, making the HT2 part suitable for demanding ignition systems in Ford trucks and performance vehicles.

Technical Details and Specifications

The Autolite HT2 spark plug incorporates a tapered ground electrode tip made from nickel, which works in conjunction with the platinum center electrode tip to provide a consistent spark. The resistor type design with 5000 ohms resistance helps minimize radio frequency interference, protecting sensitive electronic components. The plug features a stud-type electrical terminal and a tapered seat to ensure a secure and proper fit. With a thread diameter of 16.0 mm and a reach of 0.750 inches (19.5 mm), it is designed to meet the exact specifications required by Ford F-150, F-250 Super Duty, F-350 Super Duty, and Mustang models.

Applications and Problem Solving

• Improves ignition reliability in Ford F-150 and Super Duty trucks
• Reduces misfires and rough idling in Mustang engines
• Enhances fuel efficiency through consistent spark delivery
• Minimizes electrical interference affecting onboard electronics
• Extends spark plug service life with platinum tip durability

Installation Notes and Tips

When installing the Autolite HT2 spark plug, ensure the pre-gap size is set to 0.035 inches (0.90 mm) for optimal performance. Use a 9/16 inch (14 mm) socket wrench to tighten the plug to the manufacturer’s torque specifications. The tapered seat design requires careful seating to avoid cross-threading. It is recommended to inspect the spark plug threads and cylinder head before installation to ensure a clean and secure fit.

Quality Assurance and Warranty

Autolite maintains strict quality control standards for the Platinum Spark Plug line, including the HT2 model, to meet OEM specifications. The use of high-grade materials such as platinum, copper, nickel, and ceramic ensures durability and consistent performance. While specific warranty details are not provided, Autolite products typically adhere to industry standards for ignition components.