Autolite 4173 Spark Plug

Reliable Ignition with Autolite Copper Non-Resistor Spark Plug 4173

The Autolite Copper Non-Resistor Spark Plug 4173 delivers consistent ignition performance for a variety of vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine operation.

• Copper center electrode core for enhanced conductivity
• Tapered ground electrode tip made of nickel for durability
• Flat seat type ensuring proper sealing
• Short ceramic insulator for reliable insulation
• Removable nut electrical terminal for easy installation
• Pre-gap size of 0.028 inches (0.71 mm) optimized for ignition
• Standard center electrode design with a single ground electrode
• Thread diameter of 12.0 mm and reach of 0.500 inches (13.0 mm)
• Hex size options of 13/16" (21 mm) for compatibility with common tools

Detailed Features and Construction

The Autolite Copper Non-Resistor Spark Plug 4173 features a copper core center electrode that improves electrical conductivity, promoting efficient spark generation. The nickel ground electrode with a tapered tip design enhances durability and consistent spark gap maintenance. This spark plug uses a flat seat type to ensure a secure fit and proper sealing within the combustion chamber. The short ceramic insulator provides reliable electrical insulation while maintaining compact dimensions. The removable nut electrical terminal allows for straightforward connection and replacement. With a pre-gap size of 0.028 inches (0.71 mm), this spark plug is pre-set for optimal ignition performance in compatible engines.

About the Copper Non-Resistor Spark Plug Line

The Copper Non-Resistor Spark Plug line from Autolite is designed to provide dependable ignition without the use of a resistor. This line focuses on delivering solid electrical conductivity through copper core electrodes combined with nickel tips for durability. The absence of a resistor means these plugs are suitable for applications where resistor plugs are not required or preferred, offering a straightforward ignition solution.

Applications and Problem Solving

• Helps resolve misfires caused by worn or damaged spark plugs
• Improves engine starting reliability in compatible vehicles
• Reduces rough idling due to inconsistent spark delivery
• Supports efficient fuel combustion for smoother acceleration
• Addresses spark plug fouling issues with durable electrode materials

Installation Notes and Tips

Ensure the spark plug gap matches the vehicle manufacturer’s specifications before installation, although the Autolite 4173 comes pre-gapped at 0.028 inches (0.71 mm). Use a torque wrench to tighten the spark plug to the recommended torque to avoid damage to the threads or improper sealing. The 13/16" (21 mm) hex size is compatible with standard spark plug sockets. Verify compatibility with your vehicle’s make and model to ensure proper fitment.

Quality Assurance and Warranty

Autolite maintains strict quality control standards for the Copper Non-Resistor Spark Plug 4173, ensuring consistent performance and durability. While specific warranty details are not provided, Autolite products typically meet or exceed OEM specifications for ignition components.