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NGK 5123 Spark Plug
| Brand | NGK 5123 |
|---|---|
| Resistance | 5000 |
| Ground Electrode Tip Design | Standard |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Stud |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | .028 |
| Ground Electrode Quantity | 1 |
| Hex Size | 18 |
| Insulator Height | 50.00 |
| Manufacturer Heat Range | 8 |
| Seat Type | Flat |
| Reach | .5 |
| Thread Diameter | 12.00 |
| Part Number | Dr8hs |
| Stock Number | 5123 |
| Product line | Standard Spark Plug |
| Fits | Honda · 4 vehicles |
OE-style replacement. Built to original equipment standards for dependable ignition service.
Copper core design. Promotes efficient heat transfer for stable spark plug operation.
Standard service plug. Flat seat, 12 mm thread, and 0.028-inch pre-gap.
Cross-references AMS Automotive 4105, National 5123 and 90793-20075 for the same application. See all 8.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Standard Spark Plug for Honda ATC110
NGK 5123 is a standard spark plug built for the 1982-1985 Honda ATC110. It combines a copper center electrode core with nickel electrode materials and a 0.028-inch pre-gap for consistent ignition performance.
Key Features
- Standard spark plug design for routine ignition service
- Copper core center electrode for efficient heat transfer
- Nickel center and ground electrode materials
- 0.028-inch pre-gap for specified installation setup
- Flat seat and 12 mm thread diameter
- 5 kOhm resistance and stud terminal type
Detailed Description
NGK 5123, also identified as DR8HS, is a standard spark plug engineered to OE-style specifications. Its 18 mm hex, 0.5-inch reach, and heat range 8 make it a direct service part for the Honda ATC110 ignition system. This part cross-references National 5123 for the same application.
NGK’s long OE supply history and manufacturing focus on original equipment standards support consistent fit and dependable operation. The DR8HS spark plug is built for riders who need a replacement that matches the required plug configuration without changing the ignition setup.
What It Is Used For
- Restoring weak or inconsistent spark output
- Replacing worn or fouled spark plugs
- Correcting hard starting caused by plug wear
- Maintaining proper ignition performance during routine service
Installation Notes and Tips
Fits 1982-1985 Honda ATC110. Verify the plug gap is set to 0.028 inches before installation, and confirm the flat seat, 12 mm thread diameter, and 0.5-inch reach match the engine specification. Use the DR8HS / 5123 part number when cross-checking service references.
Quality Assurance
NGK is a major OE spark plug supplier in North America and manufactures to original equipment standards for durability and operational performance.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 1985 | Honda | ATC110 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Spark Plug |
| 1984 | Honda | ATC110 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Spark Plug |
| 1983 | Honda | ATC110 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Spark Plug |
| 1982 | Honda | ATC110 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Spark Plug |
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