NGK 93476 Spark Plug

NGK Laser Iridium High Ignitability Spark Plug Overview

The NGK Laser Iridium High Ignitability Spark Plug 93476 is engineered for reliable ignition performance in select Jaguar and Land Rover vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Square platinum ground electrode tip for high ignitability
• Copper core materials in both center and ground electrodes for optimal conductivity
• Standard ground configuration with a single ground electrode
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.032 inches for precise spark delivery
• Flat seat type with 26.5 mm reach and 12 mm thread diameter
• Hex size of 14 mm for installation with common tools
• Manufacturer heat range rating of 7

Detailed Product Features and Specifications

This NGK spark plug, part number 93476, features an iridium center electrode tip known for its high melting point and wear resistance, which contributes to longer service life and stable ignition. The square platinum ground electrode tip enhances ignitability, improving combustion efficiency in engines. Both the center and ground electrodes have copper cores, which provide excellent electrical and thermal conductivity, helping to maintain optimal operating temperatures and spark consistency.

The spark plug has a standard ground configuration with a single ground electrode, a flat seat type ensuring proper sealing, and a reach of 26.5 mm suitable for the specified Jaguar and Land Rover models. The pre-gap is set at 0.032 inches, which is critical for correct spark timing and engine performance. The non-removable nut electrical terminal type ensures a secure and reliable connection to the ignition system.

About the Laser Iridium High Ignitability Spark Plug Line

The NGK Laser Iridium High Ignitability Spark Plug line is designed to provide improved ignition performance through the use of iridium and platinum electrode materials. This product line focuses on delivering consistent spark energy and durability, which is essential for modern engines requiring precise ignition control. The 93476 spark plug is part of this line, offering a balance of longevity and ignition efficiency tailored for Jaguar and Land Rover vehicles.

Compatible Vehicles and Common Applications

• Jaguar models: XE, XF, XJ, F-Type, F-Pace
• Land Rover models: Defender 90, Defender 110, Defender 130, Discovery, LR4, Range Rover, Range Rover Sport, Range Rover Velar
• Used to address ignition misfires, rough idling, poor fuel economy, and hard starting issues

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.032 inches before installation if adjustment is necessary
• Use a 14 mm socket wrench for proper tightening torque
• Verify the flat seat type matches the engine’s cylinder head design
• Apply anti-seize compound sparingly on threads if recommended by the vehicle manufacturer
• Follow manufacturer torque specifications to avoid damage

Quality Assurance and Warranty

NGK spark plugs, including part number 93476, are manufactured to meet strict quality standards for ignition components. The use of iridium and platinum materials ensures durability and consistent performance. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Jaguar and Land Rover vehicles.