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⚡ Ignite your drive with precision power and lasting spark!
The UF550 Ignition Coil & 1406 Double Iridium Spark Plug set is engineered for Infiniti and Nissan 3.5L V6 engines, offering OE-quality replacement parts that enhance engine smoothness, fuel efficiency, and reliability. Featuring durable double iridium plugs with a 100,000 km lifespan and premium ignition coils with noise suppression, this kit ensures easy bolt-on installation and superior cold-start performance backed by a 1-year warranty.







| ASIN | B0D7Q67FS4 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #453 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Ignition Coils |
| Brand | X4XZ |
| Brand Name | X4XZ |
| Compatible with Vehicle Type | Car |
| Connector Gender | Female-to-Male |
| Customer Reviews | 4.5 out of 5 stars 3,273 Reviews |
| Included Components | Ignition Coil & Double Iridium Spark Plug |
| Installation Type | Bolt-On |
| Item Type Name | Ignition Coil & Double Iridium Spark Plug |
| Item Weight | 1.37 kg |
| Manufacturer | X4XZ |
| Manufacturer Part Number | UF550&1406 |
| Manufacturer Warranty Description | 1 YEAR |
| Model Number | UF550&1406 |
| Number of Items | 1 |
| Number of Packs | 12 |
| OEM Equivalent Part Number | C1670, 22448-JA10C, 5C1727 |
| Part Interchange Info | Replacement for C1670, 22448-JA10C, 5C1727. Compatible with various Infiniti and Nissan models as listed. |
| Vehicle Service Type | Car |
S**K
Easy to install
I replaced my old ignition coils and spark plugs with this set, and I noticed a big difference in how my car runs. The engine starts smoothly, and the rough idle I was having is gone. The parts fit perfectly and seemed well-made. Installation was straightforward, and everything worked right away. This was a good replacement option and saved me money compared to going to a repair shop.
B**S
great product and price
great price way cheaper than autozone or any other parts store.. fit my dodge great easy to install and ive gotten way better milage after changing them out
D**N
As advertised, as good or better than OEM
Had a OBD code of a misfire on the #5 cyclinder of my 2001 Toyota Sequoia. Was skeptical about mail order coils etc… But my AutoZone wanted $40 for a coil and $9 for a plug. So I bit on these and $90. I can say that they not only corrected the issue, but the engine runs smooth and acceleartes like a new vehicle. Goes to show the mark-up of these products at the BIG box auto parts store and dealerships. OEM ain’t any different, so have confidence on your purchase here. p.s. the dealer wanted nearly $1000
W**D
Slight stumble, lower MPG. Good for the price
If you're getting these for your F-150, keep in mind to keep your gap close on your plugs. These have worked really well but I did notice a little stumble + my gas mileage is not as good but for the price they're a good product and I would recommend them
D**.
It'll work ok
It worked but you can tell it's not OEM quality.
R**.
Very Sadisfied!
They made a big difference in the way the engine preformed. 2017 Ford Fusion w/140000 miles. Would definitely recommend this product.
J**H
Still skeptical based on past orders from China
So far so good. They definitely fixed our problem but we’ll wait & see how long they continue to work! I have a problem buying items from China since there is no guarantee on the life of their products due to lack of oversight!
Y**R
Great Quality and Perfect Fit ⭐
Excellent product. The parts arrived in good condition and fit my car perfectly. I’m very satisfied with my purchase and would definitely recommend them.
J**A
Funcionan como deben
Las instale hace 2 semanas, hasta ahora trabajan muy bien.
R**I
Super fast delivery
Excellent product, excellent price and came on the exact day they forecast.
J**Z
Sirve para trailblazer 2005
Excelente producto 100% recomendable
J**S
RAPIDA ENTREGA
EXELENTE PRECIO Y RAPIDEZ EN ENTREGA , TODAVIA NO LAS INSTALO.
H**K
Recomendado
Excelente calidad, se noto la diferencia al cambiar las bobinas dañadas por las nuevas. RECOMENDADO
Trustpilot
1 month ago
5 days ago