/live/media/NG/NG_90418_Fro.jpg)
NGK 90418 Spark Plug
| Brand | NGK 90418 |
|---|---|
| Resistance | 5000.0 |
| Ground Electrode Tip Design | Standard |
| 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 | .032 |
| Pre-Gap Size | 0.8 |
| 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 | 0.0 |
| Thread Size | M12 - 1.25 |
| Ground Electrode Tip Material | Nickel |
| Skirt | No |
| Center Electrode Insulator Tip Projection | 0.14 |
| Center Electrode Insulator Tip Projection | 3.5 |
| Center Electrode Design | Fine wire |
| 9745 | Crush |
| Product line | Laser Iridium Spark Plug |
| Fits | Dodge, Fiat, and Jeep · 13 vehicles |
OE application fit. Engineered for original-equipment use and tested to high standards.
Iridium-tipped center electrode. Delivers long wear and reliable starts.
Fine-wire design. Promotes efficient spark delivery for performance applications.
Cross-references NGK 90418 and ILKFR7A8 for the same application. See all 2.
NGK Laser Iridium Spark Plug 90418
NGK Laser Iridium Spark Plug 90418 is built for OE-style ignition performance and long service life. It uses an iridium-tipped center electrode, a copper core, and a ceramic insulator to support reliable starts and stable combustion in modern engines.
Compatible with select 2019-2023 Jeep Renegade, 2019-2023 Fiat 500X, and 2024-2025 Dodge Hornet applications, this plug is a direct-fit service part for vehicles specified with NGK ILKFR7A8 service requirements. The NGK Laser Iridium line is engineered for factory-level fit and durability in demanding daily driving conditions.
Key Features
- Laser Iridium design for OE application service intervals
- Iridium center electrode tip for wear resistance
- Copper core center electrode for heat control and dependable starting
- Platinum pad on the ground electrode for even wear in distributorless ignition systems
- Fine-wire center electrode design for consistent spark delivery
- Pre-gapped to .032 in. / 0.8 mm
- Flat seat, M12 x 1.25 thread, 14 mm hex
- Resistor spark plug with 5,000 ohm resistance
Product Details
NGK 90418 is part of the Laser Iridium spark plug line, which focuses on OE fitment, durability, and stable ignition performance. The iridium-platinum metallurgy, nickel ground electrode, and high-grade ceramic insulator are selected to help manage heat and maintain consistent spark quality over extended service intervals. This makes it a practical choice for drivers servicing a Jeep Renegade, Fiat 500X, or Dodge Hornet with the specified factory plug application.
This part cross-references NGK ILKFR7A8 for the same application.
Common Symptoms This Part May Address
- Hard starting or extended crank time
- Rough idle or inconsistent combustion
- Misfire-related drivability concerns
- Reduced throttle response from worn plugs
- Service interval replacement for factory-specified ignition maintenance
Installation Notes
Verify the engine application against the vehicle service information before installation. Check the pre-gap specification, inspect coil boots and ignition components, and install to the manufacturer’s torque specification. For best results, replace plugs on a cool engine and confirm the correct heat range and thread reach for the application.
Quality Assurance
NGK designs Laser Iridium spark plugs to meet OE application standards and tests them for durability and quality control. Part number 90418 is built to support factory-recommended service intervals on select Jeep, Fiat, and Dodge applications.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2025 | Alfa Romeo | Tonale | 1.3L | L4 | 37,000 mi Factory Recommended Service Interval; Laser Iridium Spark Plug |
| 2025 | Dodge | Hornet | 1.3L | L4 | 37,000 mi Factory Recommended Service Interval; Laser Iridium Spark Plug |
| 2024 | Dodge | Hornet | 1.3L | L4 | 37,000 mi Factory Recommended Service Interval; Laser Iridium Spark Plug |
| 2023 | Fiat | 500X | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2023 | Jeep | Renegade | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2022 | Fiat | 500X | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2022 | Jeep | Renegade | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2021 | Fiat | 500X | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2021 | Jeep | Renegade | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2020 | Fiat | 500X | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2020 | Jeep | Renegade | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2019 | Fiat | 500X | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2019 | Jeep | Renegade | 1.3L | L4 | 37,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| No rows match your filter. | |||||