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NGK 95815 Spark Plug
NGK Laser Iridium Spark Plug for OE Applications
The NGK Laser Iridium High Ignitability Spark Plug 95815 is built for OE-style ignition performance in select Honda applications. It combines an iridium center electrode, platinum ground electrode tip, and a copper core to support reliable starts, stable combustion, and long service life.
Compatible with 2018-2021 Honda Clarity and 2019-2022 Honda Insight, this spark plug is engineered for vehicles that call for a high ignitability design. The NGK 95815 is a direct-fit ignition service part for drivers replacing worn plugs on these hybrid and efficiency-focused models.
Key Features
- Laser Iridium High Ignitability design for OE applications
- Iridium center electrode tip for durability and consistent spark performance
- Platinum ground electrode tip for even wear in distributorless ignition systems
- Copper core and high-grade ceramic insulator help manage heat
- Resistor-type plug with 5,000 ohm resistance
- Pre-gapped at 0.044 in. (1.1 mm)
- M12 x 1.25 thread size, 14 mm hex, flat seat
Product Details
NGK’s Laser Iridium High Ignitability line is built around OE requirements, with a fine-wire center electrode and dual fine electrode ground design to support dependable ignition under everyday driving conditions. The iridium-platinum metallurgy helps maintain electrode integrity over time, while the copper core and ceramic insulator are used to control heat transfer and promote stable operation. This part number 95815 cross-references DILZKAR7C11H for the same application.
For Honda Insight and Honda Clarity owners, the NGK 95815 spark plug matches the factory-style high ignitability specification used in these vehicles. It is a practical choice when replacing plugs on 2018-2021 Honda Clarity or 2019-2022 Honda Insight models that require this OE configuration.
Common Issues This Part Can Address
- Hard starting caused by worn spark plug electrodes
- Rough idle from inconsistent ignition output
- Misfire symptoms related to plug wear or gap growth
- Reduced throttle response from weakened spark delivery
- Service intervals reached on OE-style high ignitability plugs
Installation Notes
Verify the engine calls for NGK 95815 / DILZKAR7C11H before installation. Check the plug gap against the vehicle service specification, inspect coil boots and ignition components, and torque to the manufacturer’s specification for the engine. Use care with the flat seat and M12 x 1.25 thread design during installation.
Quality Assurance
NGK manufactures this Laser Iridium High Ignitability spark plug to OE standards and tests it for durability and performance consistency. The design uses iridium, platinum, copper core, and ceramic materials selected for ignition reliability in the specified Honda applications.
| Brand | NGK |
|---|---|
| Part Number | 95815 |
| Position | Laser Iridium High Ignitability Spark Plug |
| Resistance | 5000.0 |
| Ground Electrode Tip Design | Dual fine electrode (dfe) - high ignitability |
| Ground Configuration | J-gap |
| 11589 | Metric |
| Ground Electrode Core Material | Nickel |
| Washer Included | Yes |
| Grade Type | Performance |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Iridium |
| Pre-Gap Size | .044 |
| Pre-Gap Size | 1.1 |
| Ground Electrode Quantity | 1 |
| Hex Size | 14mm |
| Insulator Height | 2.01 |
| Insulator Height | 51.0 |
| Manufacturer Heat Range | 7 |
| Seat Type | Flat |
| Reach | 1.043 |
| Reach | 26.5 |
| Insulator Material | Ceramic |
| Resistor Type | Yes |
| Skirt Length | 0.059 |
| Skirt Length | 1.5 |
| Thread Size | M12 - 1.25 |
| Ground Electrode Tip Material | Platinum |
| Skirt | Yes |
| Center Electrode Insulator Tip Projection | 0.20 |
| Center Electrode Insulator Tip Projection | 5.0 |
| Center Electrode Design | Fine wire |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2022 | Honda | Insight | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2021 | Honda | Clarity | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2021 | Honda | Insight | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2020 | Honda | Clarity | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2020 | Honda | Insight | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2019 | Honda | Clarity | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2019 | Honda | Insight | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
| 2018 | Honda | Clarity | 1.5L | L4 | N/A | Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Laser Iridium High Ignitability Spark Plug |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.