NGK 1422 Spark Plug

NGK Laser Iridium Spark Plug 1422 Overview

NGK 1422 is a Laser Iridium spark plug built for precise ignition performance and OE-style service life. It is listed for select Mitsubishi Lancer applications and uses an iridium center electrode with a nickel ground electrode for stable spark delivery.

The Laser Iridium line focuses on fine-wire ignition response and original-equipment fitment standards. For drivers searching for an NGK Laser Iridium spark plug for Mitsubishi Lancer 2008-2010, part number 1422 is a direct-reference option for the listed applications.

Key Features

• Laser Iridium spark plug from NGK
• Part number 1422; OE reference ILKR8E6
• Iridium center electrode tip with copper core
• Nickel ground electrode with taper cut tip design
• Pre-gapped at 0.024 in.
• 5,000 ohm resistance
• Flat seat, 12.00 mm thread diameter, 26.5 mm reach
• Heat range 8 for the listed OE applications

Detailed Description

NGK 1422 is engineered as a Laser Iridium spark plug for select Mitsubishi Lancer models, including 2008-2010 Mitsubishi Lancer and 2009 Mitsubishi Lancer built before 11/3/2008. The iridium center electrode supports consistent ignition performance, while the taper cut ground electrode design helps maintain a focused spark path. This spark plug uses a flat seat, 5/8 hex, non-removable nut terminal, and a 0.024 in. pre-gap to match the listed OE specification.

NGK has long supplied original equipment spark plugs for domestic and import vehicles, and this part reflects that OE-focused approach. If you are replacing worn plugs on a Mitsubishi Lancer and want the correct NGK 1422 application, this plug matches the listed year and build-date coverage.

This part cross-references Mitsubishi OE reference 1822A021 for the same application.

Common Issues This Spark Plug Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent ignition output
• Misfire conditions related to electrode wear
• Reduced throttle response from degraded spark quality
• Service interval replacement on listed Mitsubishi Lancer models

Installation Notes and Tips

Verify engine application, model year, and build date before installation. For 2009 Mitsubishi Lancer, confirm the vehicle was built on or before 11/3/2008, as listed fitment is limited to that production range. Check the plug gap against the vehicle specification before installation, and inspect ignition coils, boots, and threads for wear or contamination.

Use the correct torque procedure for the cylinder head material and spark plug seat type. The NGK 1422 part number should be matched to the vehicle’s OE specification and service manual requirements.

Quality Assurance

NGK is a major OE spark plug supplier with extensive North American and global manufacturing and distribution support. The brand’s OE legacy and application coverage make NGK 1422 a specification-driven choice for the listed Mitsubishi Lancer fitments.