NGK 8765 Spark Plug

NGK Standard Spark Plug 8765

The NGK 8765 standard spark plug is built for dependable ignition performance in applications that call for a 10 mm thread, .75 reach, flat seat, and a .032 pre-gap. It uses a copper center electrode core with a nickel tip and a nickel ground electrode tip design for consistent spark delivery in everyday driving.

As part of NGK’s Standard Spark Plug line, this plug reflects the brand’s OE-focused approach and long history supplying spark plugs for domestic and import vehicles. The 8765 is a practical choice for drivers and technicians looking for a direct-replacement spark plug with proven materials and a conventional design.

Key Features

• NGK Standard Spark Plug, part number 8765
• 10 mm thread diameter with .75 reach and flat seat
• Copper center electrode core material for stable conductivity
• Nickel center electrode tip and nickel ground electrode tip
• Standard ground configuration with 2 ground electrodes
• 5000 ohm resistance and non-removable nut terminal
• Manufacturer heat range 8
• Pre-gapped to .032

Detailed Description

NGK 8765 is a standard-style spark plug engineered around OE-type dimensions and materials. The copper core supports efficient current transfer, while the nickel electrode construction helps maintain reliable ignition characteristics in routine service. With a 14 mm hex size and 50.00 insulator height, this plug is specified for engines that require this exact configuration. For buyers searching for an NGK spark plug 8765 for Honda Civic or NGK 8765 for Toyota Corolla applications, confirming the engine’s required thread, reach, seat type, and heat range is essential before installation.

This part cross-references NGK 8765 for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn spark plug electrodes
• Rough idle from inconsistent spark output
• Misfire conditions related to aged ignition components
• Reduced fuel economy from degraded plug performance
• Loss of throttle response from weak combustion events

Installation Notes and Tips

Verify the engine calls for a 10 mm, flat-seat spark plug with a .75 reach before installation. Check the gap against the engine specification, inspect the ignition coil or plug wire condition, and torque the plug to the vehicle manufacturer’s specification. For fitment-based searches such as NGK 8765 Honda Civic spark plug or NGK 8765 Toyota Corolla spark plug, match the plug’s heat range, thread diameter, and seat type to the engine requirements.

Quality Assurance

NGK is a long-established OE supplier and manufacturer with broad coverage across domestic and import vehicle applications. The 8765 is produced to support original-equipment-style durability and operational performance standards.