NGK 93618 Spark Plug

NGK Laser Iridium Spark Plug Overview

The NGK Laser Iridium High Ignitability Spark Plug 93618 is engineered for reliable ignition performance in select Dodge, Fiat, and Jeep models. Designed to enhance combustion efficiency, this spark plug supports smooth engine operation and consistent power delivery.

• Iridium center electrode tip for improved ignition
• Square platinum ground electrode for high ignitability
• Copper core center electrode for optimal conductivity
• Standard ground configuration with nickel ground electrode core
• Non-removable nut electrical terminal type
• Pre-gap size of 0.028 inches for precise spark gap
• Flat seat type with 0.75-inch reach and 12 mm thread diameter
• Hex size of 5/8 inch for installation compatibility
• Manufacturer heat range of 9 suitable for specified vehicles

Detailed Product Description

The NGK Laser Iridium High Ignitability Spark Plug 93618 features a fine iridium center electrode tip that enhances spark efficiency and durability. The copper core center electrode ensures excellent electrical conductivity, contributing to consistent ignition performance. The ground electrode uses a square platinum design, which improves ignitability and helps maintain stable combustion. With a standard ground configuration and nickel core material, this spark plug balances durability and performance. The non-removable nut terminal type simplifies installation and reduces the risk of terminal loosening.

This spark plug has a pre-gap size of 0.028 inches, optimized for the ignition system requirements of compatible vehicles. Its flat seat type and 0.75-inch reach ensure proper fitment and sealing in the combustion chamber. The 5/8-inch hex size allows for straightforward installation using common tools. The heat range of 9 is designed to suit the thermal demands of engines in Dodge, Fiat, and Jeep models such as the 124 Spider, 500, 500L, 500X, Dart, and Renegade.

About the Laser Iridium High Ignitability Spark Plug Line

The Laser Iridium High Ignitability Spark Plug line by NGK focuses on delivering enhanced ignition performance through advanced electrode materials and design. This product line incorporates iridium and platinum electrodes to improve spark efficiency and durability, which supports better combustion stability and engine responsiveness. The 93618 spark plug is part of this line, offering a balance of longevity and ignition reliability tailored for specific secondary ignition applications.

Common Applications and Issues Addressed

• Replacement for worn or fouled spark plugs in Dodge 124 Spider and Dart models
• Improves ignition consistency in Fiat 500, 500L, and 500X vehicles
• Helps resolve misfires and rough idling in Jeep Renegade engines
• Supports efficient fuel combustion to reduce emissions and improve fuel economy
• Addresses ignition-related starting difficulties and power loss

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Use a torque wrench to tighten the spark plug to manufacturer specifications
• Check and adjust the spark plug gap if necessary, maintaining the 0.028-inch pre-gap
• Inspect the spark plug threads and seat for damage before installation
• Ensure the ignition system components are in good condition to maximize spark plug performance

Quality Assurance and Warranty

NGK spark plugs, including the Laser Iridium High Ignitability Spark Plug 93618, are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, NGK products typically come with a limited warranty against manufacturing defects. Always consult the vehicle manufacturer or NGK documentation for warranty coverage related to your application.