NGK 7788 Spark Plug

NGK 7788 Standard Spark Plug Overview

The NGK 7788 standard spark plug is built for dependable ignition performance in a wide range of domestic and import vehicles. As part of NGK’s Standard Spark Plug line, this plug combines a copper core center electrode, nickel tip materials, and a 10,000-ohm resistor for stable spark delivery and reduced electrical noise.

For drivers searching for an NGK BPR9ES spark plug or NGK 7788 replacement, this part is a direct OE-style service plug for routine ignition maintenance on applications such as Honda Civic and similar vehicles that call for this specification.

Key Features

• NGK Standard Spark Plug line for everyday ignition service
• Part number 7788, NGK BPR9ES
• Copper core center electrode for consistent heat transfer
• Nickel center and ground electrode tip materials
• 10,000-ohm resistor for ignition system noise suppression
• Standard ground electrode design with a flat seat
• Pre-gapped at .028 inch
• 14 mm thread diameter, .75 inch reach, 13/16 inch hex

Detailed Description

NGK has decades of OE manufacturing experience and supplies spark plugs for a broad range of automotive, motorcycle, marine, and small engine applications. The 7788 spark plug reflects that OE-focused approach with a standard configuration, nickel electrode tips, and a copper core center electrode that supports reliable combustion performance in the correct application.

This NGK BPR9ES spark plug uses a flat seat, non-removable nut terminal, single ground electrode, and manufacturer heat range 9. Those specifications make it a practical choice for routine ignition service where the vehicle calls for this exact plug design. If you are replacing worn plugs in a Honda Civic or another vehicle specified for NGK 7788, matching the heat range, reach, and thread size is essential for proper operation.

This part cross-references Champion Spark Plug 954 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 plug wear or incorrect gap
• Reduced fuel efficiency from weak ignition performance
• Ignition noise concerns in properly matched applications

Installation Notes and Tips

Verify the engine calls for NGK 7788 / BPR9ES before installation. Confirm thread diameter, reach, seat type, heat range, and pre-gap specification against the vehicle service information. Use proper spark plug removal and installation procedures, and inspect ignition wires or coils for wear before installing new plugs. For Honda Civic applications and other fitments, always match the specified plug type rather than substituting by appearance alone.

Quality Assurance

NGK manufactures spark plugs to original equipment standards and supports a wide range of vehicle applications with established OE supply experience. The 7788 spark plug is produced to meet the dimensional and performance requirements associated with the BPR9ES specification.