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NGK 92579 Spark Plug
| Brand | NGK 92579 |
|---|---|
| Resistance | 5000 |
| Ground Electrode Tip Design | Taper cut |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Iridium |
| Pre-Gap Size | .036 |
| Ground Electrode Quantity | 1 |
| Hex Size | 5/8 |
| Insulator Height | 50.50 |
| Manufacturer Heat Range | 9 |
| Seat Type | Flat |
| Reach | .75 |
| Thread Diameter | 10.00 |
| Part Number | Cr9eib-9 |
| Stock Number | 92579 |
| Product line | Laser Iridium Spark Plug |
| Fits | Kawasaki and MV Agusta · 11 vehicles |
Laser Iridium design. Iridium center electrode supports precise spark delivery and stable ignition performance.
OE-standard construction. Built to original equipment standards with NGK manufacturing expertise.
Pre-gapped specification. Set to 0.036 inches for applications that call for that OE gap.
Cross-references NGK 92579 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Laser Iridium Spark Plug
NGK 92579 is a Laser Iridium spark plug built to OE standards for ignition service on select Kawasaki and MV Agusta applications. It combines an iridium center electrode with a nickel ground electrode and a 0.036-inch pre-gap for consistent spark performance.
Use this spark plug when you need a direct replacement for applications that call for NGK CR9EIB-9. The 5000-ohm resistor, flat seat, and 10 mm thread diameter support stable ignition performance in compatible motorcycle engines.
Key Features
- Laser Iridium design with an iridium center electrode for precise spark delivery.
- Nickel ground electrode with taper-cut tip design.
- Pre-gapped to 0.036 inches for OE-specified applications.
- 5000-ohm resistor helps control electrical noise in the ignition system.
- Flat seat, 10 mm thread diameter, and 0.75-inch reach.
- Cross-references NGK CR9EIB-9 for the same application.
Detailed Description
NGK 92579 is engineered as a Laser Iridium spark plug for motorcycles that require the CR9EIB-9 specification. It is listed for Fits 2020-2024 Kawasaki KX250, N/A; Fits 2024 Kawasaki KX250 50th Anniversary Edition, N/A; Fits 2021-2024 Kawasaki KX250X, N/A; and Fits 2013 MV Agusta Brutale 800, N/A. The part number 92579 appears on the box and in interchange data for easy identification during service.
NGK’s OE manufacturing background is reflected in the plug’s construction, including a copper core center electrode, iridium tip material, and standard ground configuration. For Kawasaki KX250, Kawasaki KX250X, and MV Agusta Brutale 800 service, this spark plug supports accurate replacement selection when the original application calls for NGK 92579.
What It Is Used For
- Replacing a worn spark plug that causes hard starting.
- Restoring weak or inconsistent spark output.
- Addressing misfire symptoms tied to plug wear.
- Correcting ignition performance issues from excessive electrode wear.
- Servicing applications specified for NGK 92579 or CR9EIB-9.
Installation Notes and Tips
Verify the required heat range, thread diameter, reach, and seat type before installation. Confirm the gap specification against the vehicle service information; this plug is listed with a 0.036-inch pre-gap. Use the correct torque procedure for the cylinder head material and inspect the ignition system for related wear if the old plug shows heavy fouling or damage.
Quality Assurance
NGK is a major OE spark plug supplier in North America with more than 80 years of automotive experience. The 92579 spark plug is manufactured to original equipment standards for durability and operational performance.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2024 | Kawasaki | KX250 | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2024 | Kawasaki | KX250 50th Anniversary Edition | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2024 | Kawasaki | KX250X | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2023 | Kawasaki | KX250 | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2023 | Kawasaki | KX250X | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2022 | Kawasaki | KX250 | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2022 | Kawasaki | KX250X | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2021 | Kawasaki | KX250 | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2021 | Kawasaki | KX250X | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2020 | Kawasaki | KX250 | -L | -- | Actual OE Manufacturer; Laser Iridium Spark Plug |
| 2013 | MV Agusta | Brutale 800 | -L | -- | Gap spark plug at 0.036 inches according to OE manufacturer specification.; Laser Iridium Spark Plug |
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