NGK Standard Spark Plug 5122 (BR7ES), Copper Core, Fits Honda, Suzuki, Yamaha, KTM Engines

The NGK 5122 is a Standard series spark plug built around a solid copper core center electrode for strong heat dissipation and reliable conductivity across a broad heat range. Known by its NGK type designation BR7ES, this plug is engineered for OE-grade fit and performance rather than as an aftermarket substitute, and it is treated with corrosion-resistant plating on the shell and threads to keep installation and removal straightforward even after extended service. Both the ground electrode and center electrode core are nickel and copper respectively, with a nickel center electrode tip, and the plug carries a 5000 Ohm resistor for suppressing ignition interference.

This spark plug is intended as a direct replacement for a wide range of small engines and recreational vehicles rather than one specific application, so checking your engine and maintenance manual against the fitment below before ordering is recommended. It uses a standard ground electrode configuration and is sold and shipped ready to install, with no additional gapping equipment included.

Specifications

• Brand: NGK
• Manufacturer Part Number: 5122
• NGK Type Designation: BR7ES
• Ground Configuration: Standard
• Ground Electrode Core Material: Nickel
• Center Electrode Core Material: Copper
• Center Electrode Tip Material: Nickel
• Resistance: 5000 Ohm
• Weight: 0.15 pounds
• UPC: 087295151228

Fitment

• Honda, 1980-1979
• Porsche, 1973-1965
• Honda ATV, 1990-1977
• KTM motorcycle, 2009-2005
• Suzuki motorcycle, 2004-1996
• Yamaha motorcycle, 2000
• BRP PWC, 1997-1988
• Moto-Ski snowmobile, 1983-1976
• Scorpion snowmobile, 1980
• Ski-Doo snowmobile, 1987-1982
• Briggs & Stratton, Kohler, and Kubota small engines
• Winco generators

Replaces (OEM)

• Honda 98079-57816
• Honda 98079-57847
• Honda 98079-57876
• Honda 98079-57877
• Suzuki 09482-00117
• Yamaha 94701 00112
• Yamaha 94702 00349

Frequently Asked Questions

What is NGK part 5122? NGK 5122 is a Standard series spark plug, NGK type designation BR7ES, built with a solid copper core center electrode and nickel electrode tips for reliable ignition performance.

Does the NGK 5122 spark plug have a resistor? Yes, the NGK 5122 (BR7ES) carries a 5000 Ohm resistor to help suppress electrical interference during operation.

What is the ground electrode material on the NGK 5122? The ground electrode core is nickel, while the center electrode core is copper with a nickel tip, on the NGK 5122 (BR7ES) spark plug.

Will the NGK 5122 fit my Honda? The NGK 5122 (BR7ES) is listed to fit Honda applications from 1980-1979, as well as Honda ATV applications from 1990-1977; check your engine manual to confirm the correct plug for your specific model.

Is the NGK 5122 spark plug used in motorcycles? Yes, NGK 5122 (BR7ES) fitment includes motorcycle applications for KTM (2009-2005), Suzuki (2004-1996), and Yamaha (2000).

Does the NGK 5122 fit personal watercraft? The NGK 5122 (BR7ES) is listed for BRP PWC applications from 1997-1988.

Is the NGK 5122 suitable for snowmobiles? Snowmobile fitment for the NGK 5122 (BR7ES) includes Moto-Ski (1983-1976), Scorpion (1980), and Ski-Doo (1987-1982).

What OEM part numbers does the NGK 5122 cross to? The NGK 5122 (BR7ES) cross-references to Honda 98079-57816, 98079-57847, 98079-57876, and 98079-57877; Suzuki 09482-00117; and Yamaha 94701 00112 and 94702 00349.

Can the NGK 5122 be used in small engines or generators? Yes, the NGK 5122 (BR7ES) is also listed for Briggs & Stratton, Kohler, and Kubota small engines, as well as Winco generators.

What material is the center electrode made from on the NGK 5122? The center electrode core on the NGK 5122 (BR7ES) is copper, chosen for strong heat dissipation and conductivity, with a nickel electrode tip.

How much does the NGK 5122 spark plug weigh? The NGK 5122 spark plug weighs 0.15 pounds.

Is the NGK 5122 an OE-style plug or an aftermarket design? The NGK 5122 (BR7ES) is engineered for OE applications and is treated with corrosion-resistant plating for easy installation and removal.