NGK 5110 Spark Plug

NGK B7HS Standard Spark Plug

The NGK B7HS standard spark plug is built for dependable ignition performance in a wide range of domestic and import engines. As part number 5110, this NGK spark plug uses a copper core center electrode, nickel tip materials, and a standard ground electrode design to support consistent combustion and reliable starting.

Key Features

• NGK Standard Spark Plug line for everyday ignition service
• Part number 5110, NGK B7HS
• Copper core center electrode with nickel tip material
• Nickel ground electrode with standard configuration
• 1 ohm resistance for ignition system compatibility
• Pre-gapped to .028 for common small-engine and motorcycle applications
• 14 mm thread diameter, .5 reach, flat seat
• 13/16 hex size with removable nut terminal

Product Details

NGK’s Standard Spark Plug line focuses on OE-style construction and broad application coverage. This B7HS plug features a 7 heat range, single ground electrode, and a flat seat design, making it a practical choice for engines that call for a conventional resistor spark plug with a copper core center electrode. The NGK 5110 is commonly cross-referenced for applications that specify B7HS service requirements, including select motorcycle, marine, and small engine uses.

This part cross-references Champion Spark Plug 807-1 and FEL-PRO 413 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 degraded plug electrodes
• Reduced combustion efficiency in engines calling for a B7HS-style plug
• Service replacement needs for select motorcycle, marine, and small engine ignition systems

Installation Notes and Tips

Verify the required thread diameter, reach, seat type, and heat range before installation. The NGK B7HS uses a 14 mm thread, .5 reach, flat seat, and 13/16 hex, so it should be matched to the engine specification exactly. Check the gap against the engine manufacturer’s recommendation before final installation, and confirm the terminal style matches the ignition lead or cap.

For fitment-based searches, this NGK spark plug is commonly sought for B7HS applications and NGK 5110 replacement needs across select motorcycle, marine, and small engine platforms. If your vehicle or engine calls for a standard resistor plug with these dimensions, the B7HS specification is the key match.

Quality Assurance

NGK is a major OE spark plug supplier in North America with more than 80 years of automotive experience. Its manufacturing and distribution network supports original-equipment standards for durability and operational performance across automotive, motorcycle, marine, and small engine applications.