NGK 3188 Spark Plug

NGK JR9B Standard Spark Plug

NGK 3188 is a standard spark plug built for dependable ignition performance in a wide range of domestic and import applications. It uses a copper center electrode core, nickel center and ground electrode tips, and a 5,000 ohm resistor to support stable spark delivery and reduced electrical noise.

As part of NGK’s Standard Spark Plug line, this plug reflects the brand’s OE-focused approach to ignition components. It is a practical choice for drivers and technicians looking for a direct-replacement spark plug with consistent construction and original-equipment style durability.

Key Features

• Part number 3188, NGK JR9B
• Standard spark plug design for everyday ignition service
• 5,000 ohm resistor for noise suppression
• Copper center electrode core for reliable conductivity
• Nickel center and ground electrode tip materials
• Taper-cut ground electrode tip design with standard ground configuration
• Flat seat type, 12.00 mm thread diameter, 0.75 reach
• Pre-gapped at .028
• 18 mm hex size and stud terminal type
• Heat range 9

Detailed Description

NGK 3188 is engineered as a standard replacement spark plug for ignition systems that call for a 12 mm thread, flat seat, .75 reach, and .028 pre-gap. The copper core helps support efficient spark transfer, while the nickel electrode materials and taper-cut ground design provide a conventional serviceable layout for routine maintenance. For owners searching for an NGK spark plug for Honda Civic or other vehicle-specific ignition service, this part number 3188 offers a straightforward OE-style option.

NGK’s long history as an OE supplier and manufacturer is reflected in the JR9B design, which is built for broad coverage across automotive, motorcycle, marine, and small engine applications. If you are replacing worn plugs in a Honda Civic, or sourcing a standard ignition tune-up part for another make/model application, NGK 3188 is a direct-fit style spark plug built around common service specifications.

This part cross-references Anchor 3188 for the same application.

What It Helps Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent spark delivery
• Misfire conditions related to aged ignition components
• Reduced throttle response from degraded plug performance
• Electrical interference concerns addressed by resistor construction

Installation Notes and Tips

Verify the required thread diameter, reach, seat type, and heat range before installation. Check the gap specification against the vehicle service information and confirm the ignition system is in good condition before replacing plugs. Use proper torque procedures and inspect the plug wires or coil-on-plug boots during service. For fitment-based searches, confirm the application for your Honda Civic or other listed vehicle before ordering NGK 3188.

Quality Assurance

NGK manufactures ignition components to OE standards and supports a broad range of domestic and import vehicle applications. Part number 3188 is built with the materials and dimensions expected for standard spark plug service, including a copper core, nickel electrodes, and a resistor design for stable operation.