NGK 4477 Laser Iridium Spark Plug
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NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
- IRIDIUM ALLOY CENTER ELECTRODE: Iridium's density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
- PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
Specifications
| Short Style Spark Plug | No |
| Part Number | ITR6F13 |
| Stock Number | 4477 |
| Metallurgy | Iridium Platinum |
| Service Number | ITR6F13 |
| Dimension | 5000.0 82 |
| Tip Configuration | Standard |
| Gap Style | J-Gap |
| Thread Standard | Metric |
| Ground Electrode Core Material | Copper |
| Grade Type | Performance |
| Terminal Type | Non-Removable Nut |
| Center Electrode Core Material | Copper |
| Center Electrode Material | Iridium |
| Spark Plug Gap | .052 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 5/8" (16mm) |
| Length | 2.07 IN |
| Heat Range | 6 |
| Seat Type | Tapered |
| Reach | 0.689 IN |
| Material | Ceramic |
| Thread Size | M14 - 1.25 |
| Ground Electrode Material | Platinum |
| Resistor | No |
| Insulator Nose Projection | 0.14 IN |
| Electrode Style | Fine Wire |
| Projection | Mid Projection |
| Country of Origin | Japan |
Warranty: 2 Months
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
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Shipping: Free to the USA.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
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