Autolite 45 Spark Plug

Reliable Ignition with Autolite Copper Resistor Spark Plug 45

The Autolite Copper Resistor Spark Plug part number 45 is engineered to provide consistent ignition performance for a range of Ford, Lincoln, and Mercury vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine operation.

• Resistance: 4000 ohms for effective electrical noise suppression
• Center electrode made of copper core with nickel tip for optimal conductivity and durability
• Tapered ground electrode tip and seat type for secure fit and reliable spark
• Stud-type electrical terminal for straightforward installation
• Ceramic mid-projection insulator for enhanced heat dissipation
• Pre-gap size of 0.044 inches (1.10 mm) for proper spark gap
• Hex size options: 13/16 inch (21 mm) for compatibility with standard tools
• Thread diameter of 18.0 mm and reach of 0.433 inches (11.0 mm) for precise fitment

About the Copper Resistor Spark Plug Product Line

The Autolite Copper Resistor Spark Plug line combines copper core electrodes with resistor technology to reduce radio frequency interference while maintaining strong ignition performance. This product line is designed to meet the ignition needs of various Ford, Lincoln, and Mercury models, providing a balance of conductivity and durability through nickel-tipped electrodes and ceramic insulators.

Technical Details and Compatibility

The Autolite Copper Resistor Spark Plug 45 features a single tapered ground electrode made from nickel, paired with a standard center electrode design. The ceramic insulator is mid-projection type, which helps maintain optimal heat range and prevents fouling. This spark plug is compatible with multiple Ford, Lincoln, and Mercury vehicles including Bronco, Mustang, Thunderbird, F-150, and Econoline series models such as E-150 and E-350 Econoline Club Wagon.

Common Applications and Problem Solving

• Restores proper ignition timing and spark delivery in Ford Mustang and Lincoln Continental engines
• Reduces engine misfires and rough idling in Mercury Cougar and Ford F-250 trucks
• Helps prevent radio frequency interference affecting vehicle electronics
• Improves fuel efficiency and engine responsiveness in Ford Econoline vans
• Addresses spark plug fouling and wear in older model vehicles

Installation Notes and Tips

When installing the Autolite Copper Resistor Spark Plug 45, ensure the pre-gap size of 0.044 inches (1.10 mm) is maintained for optimal spark performance. Use a 13/16 inch (21 mm) socket wrench for proper torque application. Verify the tapered seat type matches the engine’s cylinder head design to avoid leaks. Always replace spark plugs in sets to maintain consistent engine operation.

Quality Assurance and Warranty

Autolite spark plugs are manufactured to meet OEM specifications for fit, form, and function. The Copper Resistor Spark Plug 45 undergoes rigorous quality control to ensure durability and reliable ignition performance. While specific warranty details are not provided here, Autolite products typically come with manufacturer-backed quality guarantees to support customer confidence.