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⚡ Ignite your drive with NGK Iridium IX – where precision meets power!
The NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug pack of 4 is engineered for performance enthusiasts seeking extreme ignition reliability and durability. Featuring a 0.6mm laser-welded iridium tip, tapered ground electrode, and triple-seal technology, these spark plugs deliver improved throttle response, superior fouling resistance, and corrosion protection. Compatible with cars, trucks, and motorcycles, they ensure consistent spark and combustion efficiency for today’s high-performance engines.










| ASIN | B00CC0E6GA |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #73,803 in Automotive ( See Top 100 in Automotive ) #427 in Automotive Performance Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car, Truck, Motorcycle, etc. |
| Core Material | Iridium |
| Core material | Iridium |
| Customer Reviews | 4.8 out of 5 stars 826 Reviews |
| Gap Size | 0.6 Millimeters |
| Global Trade Identification Number | 00087295064412 |
| Included Components | Other Vehicle Parts( AUTO_PART ),Replacement Parts - Underhood, Engine Management, spark-plugs |
| Item Type Name | ZFR6FIX11 Iridium Plug |
| Item Weight | 0.01 Ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | 6441-4PK |
| Model Number | 6441-4PK |
| Number of Items | 4 |
| OEM Equivalent Part Number | 6441-4PK |
| Thread Size | M10x1.0 or M12x1.25 |
| Thread size | M10x1.0 or M12x1.25 |
| Top Material Type | Metal |
| Top material type | Metal |
| UPC | 087295064412 |
| Unit Count | 1 Count |
| Vehicle service type | Car, Truck, Motorcycle, etc. |
H**N
Good but all of them needed to be re-gapped
Good but all of them needed to be re-gapped. Checked on multiple gauges and calipers. all 4 of them were too closely gapped. Description said it was pre-gapped .044" more like .036"
C**N
conforme vraies bougies NGK
conforme vraies bougies NGK. pour ceux qui se posent la question, il existe des contrefacons NGK; celles ci ne le sont pas, elles sont arrivés rapidement, parfait état. Sur honda accord 2.0i es 147cv année 1999, zfr6fix-11 parfait, meilleur ralenti, plus doux, plus réactive, je sens une petite différence. Le gap est juste en dessous de 1.1mm, ce qui est recommandé pour ce modèle de véhicule et ces bougies: donc pas eu à retoucher quoique ce soit. n'hésitez pas, ce vendeur est sérieux, les bougies sont de qualité. je partage cela pour les prochains qui passent après moi, ca peut aider. cordialement
Z**N
Can feel the difference.
Check the resistance to be sure they are authentic. It should be between 4 and 5.5 ohms. Check the gap, it shouldn't be off more than 1 degree +/-. Watch videos on how to see the difference between real and fake. These work flawlessly in my 2.2 Honda. The gap is spot on. Been two years now...seem like new.
M**.
Máxima calidad a excelente precio.
Excelente! Mejoró mucho el rendimiento de Civic.
L**E
Kwaliteit
Goede prijs.
Trustpilot
3 days ago
4 days ago