NGK 91448 Spark Plug

Overview of NGK Laser Iridium High Ignitability Spark Plug 91448

The NGK Laser Iridium High Ignitability Spark Plug 91448 is engineered for reliable ignition performance in Mitsubishi Lancer vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 91448 (Dilkr8b6)
• Brand Line: Laser Iridium High Ignitability Spark Plug
• Ground Electrode Tip Design: Dual fine electrode for high ignitability
• Center Electrode Tip Material: Iridium
• Center Electrode Core Material: Copper
• Ground Electrode Core Material: Nickel
• Resistance: 5000 ohms
• Pre-Gap Size: 0.024 inches
• Thread Diameter: 12.00 mm
• Reach: 26.5 mm
• Hex Size: 5/8 inch
• Seat Type: Flat
• Electrical Terminal Type: Non-removable nut
• Manufacturer Heat Range: 8
• Insulator Height: 50.00 mm

Detailed Product Description

The NGK Laser Iridium High Ignitability Spark Plug 91448 features a dual fine electrode ground tip design that enhances ignitability, promoting efficient combustion in the Mitsubishi Lancer engine. The iridium center electrode tip provides durability and stable performance under high temperatures, while the copper core ensures excellent conductivity. The nickel ground electrode core adds strength and corrosion resistance. With a resistance of 5000 ohms, this spark plug helps reduce electrical noise and interference. The pre-gap size of 0.024 inches is optimized for consistent spark delivery. Its flat seat type and 26.5 mm reach ensure proper fitment and sealing in the combustion chamber. The non-removable nut electrical terminal type simplifies installation and maintains secure connections.

About the Laser Iridium High Ignitability Spark Plug Line

The Laser Iridium High Ignitability Spark Plug line by NGK is designed to provide enhanced ignition performance through the use of iridium-tipped electrodes and fine dual ground electrodes. This combination improves spark efficiency and combustion stability, which can contribute to smoother engine operation and potentially better fuel economy. The 91448 part is a specific fitment within this line tailored for Mitsubishi Lancer models, ensuring compatibility and reliable performance.

Applications and Problem Solving

• Compatible with Mitsubishi Lancer models requiring part number 91448 spark plugs
• Helps address misfires caused by worn or inefficient spark plugs
• Reduces ignition-related rough idling and hesitation
• Supports improved cold start performance
• Minimizes electrical interference due to 5000 ohm resistance

Installation Notes and Tips

• Verify compatibility with your Mitsubishi Lancer model before installation
• Use a torque wrench to tighten the spark plug to manufacturer specifications to avoid damage
• Check and adjust the spark plug gap if necessary, though pre-gap is set at 0.024 inches
• Ensure the flat seat properly seals against the cylinder head
• Inspect ignition wires and connectors for wear during replacement

Quality Assurance and Warranty

NGK spark plugs, including the Laser Iridium High Ignitability Spark Plug 91448, are manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, NGK products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always refer to NGK’s official documentation for warranty terms.