Autolite 2544 Spark Plug

Reliable Ignition Performance for Ford and Mercury Vehicles

The Autolite Copper Resistor Spark Plug 2544 is engineered to deliver consistent ignition performance for select Ford and Mercury models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• 5000 ohm resistance for effective electrical noise suppression
• Tapered ground electrode tip and seat for optimal spark delivery
• Copper center electrode core with nickel tip for balanced conductivity and durability
• Extra-long ceramic insulator for enhanced heat dissipation
• Standard stud electrical terminal type for secure connection
• Pre-gap size of 0.044 inches (1.10 mm) for proper spark gap
• Compatible with Ford Cougar, Escort, LN7, Lynx, Ranger, Thunderbird and Mercury models
• Thread diameter 14.0 mm with 0.809 inch (20.5 mm) reach and 5/8 inch (16 mm) hex size

About the Autolite Copper Resistor Spark Plug Line

The Copper Resistor Spark Plug line from Autolite is designed to reduce radio frequency interference while maintaining reliable ignition performance. Featuring a resistor type design with a 5000 ohm resistance, these spark plugs help minimize electrical noise that can affect vehicle electronics. The copper core center electrode enhances conductivity, while the nickel tips on both center and ground electrodes provide durability under normal operating conditions.

Technical Details and Features

This spark plug features a tapered ground electrode tip and seat type, which promotes efficient spark formation and combustion. The ground electrode is made of nickel with a single electrode design, paired with a copper core center electrode also tipped with nickel. The extra-long ceramic insulator improves heat resistance and electrical insulation, supporting stable engine operation. The pre-gap is factory set at 0.044 inches (1.10 mm), ensuring optimal spark gap for ignition efficiency. The spark plug uses a stud type electrical terminal and has a thread diameter of 14.0 mm with a reach of 0.809 inches (20.5 mm), suitable for the specified Ford and Mercury models.

Applications and Problem Solving

• Compatible with Ford Cougar, Escort, LN7, Lynx, Ranger, Thunderbird and Mercury vehicles requiring part number 2544
• Helps reduce ignition misfires and rough idling
• Minimizes radio frequency interference affecting vehicle electronics
• Supports consistent engine starting and smooth acceleration
• Addresses spark plug fouling and electrode wear in older vehicles

Installation Notes and Tips

Ensure the spark plug gap is checked before installation, although the pre-gap is factory set at 0.044 inches (1.10 mm). Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the tapered seat or threads. The 5/8 inch (16 mm) hex size allows for standard spark plug socket compatibility. Verify compatibility with your specific Ford or Mercury model and engine type before installation.

Quality Assurance and Warranty

Autolite Copper Resistor Spark Plug 2544 is manufactured to meet OEM specifications for fit, form, and function. The use of quality materials such as copper core electrodes and ceramic insulators ensures durability and reliable performance. While specific warranty details are not provided, Autolite products typically adhere to industry standards for quality and reliability.