NGK 4213 Spark Plug

NGK Laser Iridium Spark Plug Overview

The NGK Laser Iridium Spark Plug 4213 is engineered for reliable ignition performance in select Buick, Chevrolet, Pontiac, and Saturn vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and engine operation.

• Iridium center electrode tip for enhanced durability
• Copper core center electrode for improved conductivity
• Standard ground electrode with nickel core material
• Non-removable nut electrical terminal type
• Pre-gap size of 0.044 inches for optimal spark gap
• Tapered seat type and 14mm thread diameter
• Compatible with multiple GM models including Buick Lucerne and Chevrolet Impala

Detailed Product Features and Specifications

This NGK spark plug features a single ground electrode with a standard tip design made from nickel, providing consistent grounding and spark delivery. The center electrode combines a copper core for excellent electrical conductivity with an iridium tip, which offers enhanced wear resistance and longevity compared to conventional plugs. The pre-gap is set at 0.044 inches, ensuring proper spark gap for efficient ignition. The spark plug has a 5/8 inch hex size and a reach of 0.708 inches, fitting securely into the engine cylinder head with its tapered seat and 14mm thread diameter. The insulator height measures 53.00 mm, and the manufacturer heat range is 4, suitable for moderate operating temperatures.

About the NGK Laser Iridium Spark Plug Line

The Laser Iridium Spark Plug line by NGK is designed to provide precise ignition performance and durability. Utilizing iridium at the center electrode tip, these plugs offer improved wear resistance and consistent spark delivery, which can contribute to smoother engine operation and potentially longer service intervals. The combination of copper core and iridium tip balances conductivity and durability, making this line suitable for a range of passenger vehicles.

Compatible Vehicles and Applications

This NGK Laser Iridium Spark Plug 4213 is compatible with various GM models, including:

• Buick Lucerne and Terraza
• Chevrolet Impala, Malibu, Monte Carlo, Montana
• Pontiac G6, Relay, and G6
• Saturn Aura, Vue, and Uplander

It is designed for use in ignition systems requiring a 14mm thread diameter and a heat range of 4.

Common Issues Addressed by This Spark Plug

• Engine misfires due to worn or fouled spark plugs
• Reduced fuel efficiency from inconsistent ignition
• Difficulty starting the engine in cold conditions
• Rough idling or hesitation during acceleration
• Excessive emissions caused by incomplete combustion

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.044 inches before installation if adjustment is necessary
• Use a torque wrench to tighten the plug to manufacturer specifications to avoid damage
• Apply anti-seize compound sparingly on threads if recommended by the vehicle manufacturer
• Inspect the ignition coil and wiring for wear during replacement
• Replace spark plugs in sets to maintain consistent engine performance

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Laser Iridium Spark Plug 4213 undergoes rigorous testing for material integrity and electrical resistance, rated at 5000 ohms. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support their use in OEM and aftermarket applications.