NGK 5122 Spark Plug

NGK BR7ES Spark Plug for Honda and Porsche

The NGK Standard Spark Plug BR7ES is built for direct ignition service in select Honda and Porsche applications. It uses a copper core center electrode, nickel tip materials, and a standard ground electrode design to support consistent spark delivery and stable engine operation.

Key Features

• NGK Standard Spark Plug line for OE-style ignition service
• Part number BR7ES, stock number 5122
• 5000 ohm resistance for ignition system noise control
• Copper core center electrode with nickel tip material
• Nickel ground electrode with standard configuration
• Pre-gapped to .032 inch
• 14 mm thread diameter, .75 inch reach, flat seat
• 13/16 hex size with removable nut terminal

Product Details

NGK’s Standard Spark Plug line is designed around original equipment standards and broad vehicle coverage. The BR7ES features a 7 heat range, a standard ground electrode tip design, and a single ground electrode for dependable ignition performance. This spark plug is listed for 1980 Honda Prelude, 1979 Honda Accord, 1979 Honda Prelude, and Porsche 911 applications including 1965-1967 and 1973 models. If you are searching for an NGK BR7ES spark plug for a Honda Accord or a Porsche 911 spark plug replacement, this part matches the confirmed fitment data provided.

This part cross-references Autolite 104 for the same application.

What It Helps Address

• Hard starting caused by worn or fouled spark plugs
• Misfire from weak or inconsistent spark output
• Rough idle and uneven combustion
• Reduced throttle response from degraded ignition performance
• Service replacement needs on confirmed Honda Accord, Honda Prelude, and Porsche 911 applications

Installation Notes and Tips

Verify the engine application against the confirmed fitment list before installation. The plug is specified with a .032 inch gap, so check the gap during service and confirm the flat seat, 14 mm thread diameter, .75 inch reach, and 13/16 hex size match the cylinder head requirements. Use the removable nut terminal only as required by the ignition lead or boot style on the vehicle.

Quality Assurance

NGK is a long-established OE supplier with North American manufacturing, inventory, and distribution support. The brand’s spark plug line is built to original equipment standards for durability and operational performance across domestic and import vehicle applications.