Autolite 144 Spark Plug

Reliable Ignition with Autolite Copper Resistor Spark Plug 144

The Autolite Copper Resistor Spark Plug 144 delivers consistent ignition performance for a variety of vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient engine operation and helps maintain smooth running conditions.

• Resistor type spark plug with 5000 ohms resistance for noise suppression
• Copper center electrode core with nickel tip for optimal conductivity and durability
• Tapered ground electrode tip made of nickel for reliable spark formation
• Ceramic short insulator for effective heat dissipation
• Standard 14mm thread diameter and 11.0 mm reach for common fitments
• Pre-gap size of 0.034 inches (0.90 mm) for precise spark gap
• Hex size 5/8 inch (16 mm) for easy installation with standard tools

About the Copper Resistor Spark Plug Product Line

The Autolite Copper Resistor Spark Plug line is engineered to provide a balance of performance and noise reduction. Featuring a resistor design with 5000 ohms resistance, these plugs help minimize radio frequency interference while maintaining reliable ignition. The copper core center electrode enhances electrical conductivity, supporting efficient combustion in compatible vehicles.

Technical Details and Features

This spark plug features a tapered seat type and a single ground electrode constructed from nickel, which offers durability and consistent spark delivery. The center electrode uses a copper core with a nickel tip, combining excellent heat transfer with wear resistance. The ceramic insulator is designed short to optimize heat range and prevent fouling. With a thread diameter of 14.0 mm and a reach of 11.0 mm, the Autolite 144 spark plug fits many domestic and import vehicles requiring these specifications.

Common Applications and Problem Solving

• Helps reduce engine misfires caused by worn or faulty spark plugs
• Minimizes radio frequency interference affecting vehicle electronics
• Improves cold start performance and throttle response
• Supports consistent combustion to reduce rough idling
• Prevents spark plug fouling in normal driving conditions

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.034 inches (0.90 mm) before installation. Use a 5/8 inch (16 mm) socket wrench to tighten the plug to the manufacturer’s recommended torque. The tapered seat design requires proper seating to avoid compression leaks. Always check vehicle-specific service manuals for fitment confirmation and torque specifications.

Quality Assurance and Warranty

Autolite spark plugs are manufactured to meet OEM standards for fit, form, and function. The Copper Resistor Spark Plug 144 undergoes rigorous quality control to ensure durability and performance. While specific warranty details vary by retailer, Autolite products typically come with a limited warranty against manufacturing defects.