NGK Iridium IX Spark Plugs High Performance Iridium Upgrade OEM Replacement
Part # 6664 SKU 396570
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NGK
NGK Iridium IX Spark Plugs High Performance Iridium Upgrade OEM Replacement
Highlights
- Center electrode core material
- Copper
- Center electrode tip material
- Iridium
- Electrical terminal type
- Removable Nut
- Fuel type
- Gasoline
- Ground configuration
- Standard
- Ground electrode core material
- Nickel
- Ground electrode quantity
- 1
- Ground electrode tip design
- Taper Cut
- Hex size
- 13/16
- Manufacturer heat range
- 7
- Pre-gap size
- 0.032
- Reach
- 0.75
- Resistance
- 5000
- Seat type
- Flat
- Stock number
- 6664
- Type
- Spark Plug
- Voltage
- 12 V
- Interchange number
- NGK Iridium IX High Performance Spark Plug Universal Motorcycle A, TV OEM Replacement
Description
Key facts
- Part number: 6664
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
- Trivalent metal plating for superior anti-corrosion and anti-seizing properties
- Outstanding acceleration, high fuel efficiency and durability
- Fine iridium tip ensures durable and consistent spark
NGK Iridium IX Spark Plugs High Performance Iridium Upgrade OEM Replacement
The NGK Iridium IX Spark Plugs represent a significant advancement in automotive ignition technology, designed to provide superior performance and longevity. Crafted with a fine-wire iridium center electrode, these spark plugs offer the ideal balance between durability and conductivity. Their advanced design minimizes ignition voltage requirements while enhancing fuel efficiency, ensuring your engine runs smoothly and efficiently regardless of driving conditions.
One of the primary functions of spark plugs is to ignite the air-fuel mixture in the combustion chamber. The iridium construction allows for a more precise spark, leading to improved combustion and increased engine performance. This results in higher horsepower, better fuel economy, and lower emissions. The materials and design of NGK Iridium IX Spark Plugs also contribute to their resistance to fouling and wear, which means less frequent replacements and maintenance for the vehicle owner.
FITMENT: These spark plugs are an OEM replacement suitable for a wide range of vehicles. They are designed to meet or exceed original equipment standards, ensuring optimal fitment and performance. Always consult your vehicle's manual for specific compatibility details.
Key Features & Benefits
- High-performance iridium construction for increased durability.
- Fine-wire center electrode for precise ignition and reduced voltage requirements.
- Enhanced fuel efficiency and improved engine performance.
- Longer service life compared to conventional spark plugs, reducing replacement frequency.
- Designed to minimize fouling, ensuring consistent engine operation.
Fits
1965-1973 Porsche 911, 1979 Honda Accord, 1979-1980 Honda Prelude, 1959 MG MGA
Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.
Vehicle fitment
| Make | Model | Submodel | Years |
|---|
No vehicle matches that filter.
Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.
Specifications
| Identification | |
|---|---|
| Brand | NGK |
| Part number | 6664 |
| SKU | 396570 |
| Dimensions and weight | |
| Dimensions (W × H × D) | 4.00 × 4.00 × 1.00 in |
| Material and finish | |
| Series and warranty | |
| Details | |
| Center electrode core material | Copper |
| Center electrode tip material | Iridium |
| Electrical terminal type | Removable Nut |
| Fuel type | Gasoline |
| Ground configuration | Standard |
| Ground electrode core material | Nickel |
| Ground electrode quantity | 1 |
| Ground electrode tip design | Taper Cut |
| Hex size | 13/16 |
| Manufacturer heat range | 7 |
| Pre-gap size | 0.032 |
| Reach | 0.75 |
| Resistance | 5000 |
| Seat type | Flat |
| Stock number | 6664 |
| Type | Spark Plug |
| Voltage | 12 V |
| Interchange number | NGK Iridium IX High Performance Spark Plug Universal Motorcycle A, TV OEM Replacement |
Shipping and returns
Shipping. Free on every order, US only. Orders arrive in 2–4 days.
Returns. 30-day returns, except in extreme cases.
Support. Our team is available 24/7 for fitment mismatches or any other reason.
Warranty. Full manufacturer guarantee.
Not sure about this part? Ask us.
Fitment, install, what else you need for the job. A parts person answers, usually within one business day.
We answer by email. No account needed.
Questions and answers
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Reviews
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