NGK 95229 Spark Plug

Laser Iridium Spark Plug Overview

NGK 95229 is a Laser Iridium High Ignitability spark plug engineered for OE applications that call for long service life, reliable starting, and stable ignition performance. It uses an iridium center electrode, a platinum ground tip, and a copper core to manage heat and maintain consistent spark quality.

Key Features

• Laser Iridium High Ignitability design for OE-style ignition performance.
• Iridium center electrode for strong durability and wear resistance.
• Platinum ground electrode tip for even wear in distributorless ignition systems.
• Copper core and high-grade ceramic construction help control heat.
• Pre-gapped to 0.036 in. with a flat seat and M12 x 1.25 thread.
• Resistor design with a 5,000 ohm resistance rating.

Detailed Description

NGK 95229 combines an iridium fine-wire center electrode with a platinum-tipped ground electrode to support consistent spark delivery and long service intervals. The plug’s J-gap configuration, 0.9 mm pre-gap, and long-projection design are built for applications that require precise ignition control and dependable combustion. This part cross-references Dayco 95229 and 18849-09070 for the same application. It is a direct replacement spark plug for select Hyundai Accent, Kia Optima, Kia Rio, and Hyundai Sonata applications listed in the fitment data.

What It Helps Address

• Hard starting caused by worn or heat-stressed spark plugs.
• Misfire concerns from weak or inconsistent spark output.
• Reduced ignition efficiency from electrode wear.
• Service intervals that call for a long-life spark plug design.
• Combustion issues in OE-specified ignition systems.

Installation Notes and Tips

Verify the thread size, reach, seat type, and pre-gap before installation. Use the fitment notes to confirm the correct service interval and application details for your vehicle. For best results, install to the manufacturer’s specified torque and inspect the ignition system if the old plugs show unusual wear.

Quality Assurance

NGK states that this Laser Iridium High Ignitability spark plug is tested to high standards for quality and durability. The iridium center electrode and platinum ground tip are selected to support long-term wear resistance in OE applications.