NGK 2522 BUHX Standard Spark Plug, Surface Discharge, Copper Core

The NGK 2522 (BUHX) Standard Spark Plug delivers the proven, reliable ignition performance NGK spark plugs have provided for decades in marine and small-engine applications. Built with a solid copper core, this plug offers superior heat dissipation, strong conductivity, and a broad heat range for consistent combustion. The center electrode uses a copper core with a nickel tip, while the ground electrode is made from nickel in a surface discharge configuration, a design that resists fouling and supports dependable spark delivery over the life of the plug.

Every NGK 2522 spark plug is treated with corrosion-resistant plating, which makes installation and removal easier and helps protect the threads from damage over repeated services. With an electrical resistance rating of 1k Ohm, the BUHX is built to NGK's OE-cornerstone standards for consistent, dependable ignition performance. This plug is sold individually and is cross-referenced to specific BRP and Yamaha part numbers, making it straightforward to identify as the correct replacement when servicing compatible engines. As with any spark plug replacement, check your engine and maintenance manual to confirm this is the correct plug for your specific engine before installing.

Specifications

• Brand: NGK
• Manufacturer Part Number: 2522
• NGK Plug Number: BUHX
• Resistance: 1k Ohm
• Ground Configuration: Surface Discharge
• Ground Electrode Core Material: Nickel
• Center Electrode Core Material: Copper
• Center Electrode Tip Material: Nickel
• UPC: 087295125229
• Weight: 0.15 pounds
• Pack Quantity: 1

Replaces (OEM)

• BRP 0509580
• BRP 0765944
• Yamaha BUH-X0000-00-00

Frequently Asked Questions

What is the NGK 2522 spark plug? The NGK 2522 is a BUHX-designation Standard spark plug built with a copper core center electrode and a nickel-tipped center and ground electrode in a surface discharge configuration.

What is the resistance rating of the NGK 2522 BUHX plug? This plug carries a resistance rating of 1k Ohm.

Does the NGK 2522 cross-reference to a BRP part number? Yes, the NGK 2522 (BUHX) is interchangeable with BRP part numbers 0509580 and 0765944.

Is there a Yamaha equivalent to the NGK 2522 spark plug? Yamaha part number BUH-X0000-00-00 is the cross-reference equivalent to the NGK 2522 BUHX spark plug.

What materials are used in the NGK 2522 spark plug electrodes? The center electrode core is copper with a nickel tip, and the ground electrode core is nickel, in the BUHX's surface discharge design.

How much does the NGK 2522 spark plug weigh? The NGK 2522 spark plug weighs 0.15 pounds.

How many spark plugs come in the package? The NGK 2522 BUHX ships as a single spark plug, sold individually rather than in a multi-pack.

Is the NGK 2522 corrosion resistant? Yes, the NGK 2522 is treated with corrosion-resistant plating that eases installation and removal and helps protect the plug over time.

What ground electrode configuration does the BUHX plug use? The NGK 2522 BUHX uses a surface discharge ground configuration rather than a standard J-gap design.

How do I know if the NGK 2522 is the correct plug for my engine? Check your engine and maintenance manual for the manufacturer-recommended spark plug before installing the NGK 2522, since using the wrong plug can reduce performance or damage the engine.

Is the NGK 2522 an authentic NGK part? Yes, the NGK 2522 (BUHX) is a genuine NGK Standard series spark plug, not an aftermarket copy.

What is the UPC for the NGK 2522 spark plug? The UPC for the NGK 2522 BUHX spark plug is 087295125229.