NGK 3656 Spark Plug

NGK Laser Iridium Spark Plug 3656 Overview

NGK Laser Iridium Spark Plug 3656 is an OE-style ignition component built for precise spark delivery and long service life. It uses an iridium center electrode, a nickel ground electrode, and a 0.032 in. pre-gap to support consistent combustion in supported Mitsubishi applications.

The Laser Iridium line focuses on original-equipment standards and broad OE coverage, making it a practical choice for drivers servicing Mitsubishi Eclipse, Galant, Lancer, and Outlander models that call for this plug specification.

Key Features

• Laser Iridium center electrode tip for stable spark performance
• Nickel ground electrode with standard tip and standard configuration
• 0.032 in. pre-gap for the listed applications
• 5,000 ohm resistance
• 14 mm thread diameter, 26.5 mm reach, and flat seat design
• Non-removable nut terminal for secure connection
• Heat range 6 for the specified OE-style application

Detailed Description

NGK 3656, also identified as part number LZFR6AI, is a Laser Iridium spark plug engineered to match the requirements of select Mitsubishi engines. The iridium center electrode supports reliable ignition performance, while the copper core and nickel ground electrode help maintain efficient heat transfer and durable operation. This spark plug is listed for 2004-2012 Mitsubishi Galant, 2006-2012 Mitsubishi Eclipse, 2004-2006 Mitsubishi Lancer, and 2004-2006 Mitsubishi Outlander applications with the specified 0.032 in. gap.

As an OE-focused ignition specialist, NGK supplies spark plugs for a wide range of domestic and import vehicles. Part number 3656 is a direct reference for shoppers searching for NGK 3656 spark plug, LZFR6AI replacement, or a Laser Iridium spark plug for Mitsubishi Eclipse, Galant, Lancer, or Outlander service.

What It Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weakened ignition output
• Misfire conditions tied to incorrect plug wear or gap drift
• Reduced throttle response from inconsistent combustion
• Service replacement for Mitsubishi Eclipse, Galant, Lancer, and Outlander ignition maintenance

Installation Notes and Tips

Verify the engine application against the vehicle’s service information before installation. Confirm the 0.032 in. gap, thread diameter, reach, seat type, and heat range match the original specification for the Mitsubishi Eclipse, Galant, Lancer, or Outlander application. Use proper spark plug removal and installation procedures to avoid thread damage and ensure correct torque.

Quality Assurance

NGK is a long-standing OE supplier and manufacturer with North American and global production and distribution support. The brand’s focus on original-equipment standards and broad vehicle coverage makes NGK 3656 a dependable OE-style replacement for the listed Mitsubishi applications.