MiKaFex UF549 Ignition Coil & 9029 Iridium Spark Plug Kit — 4‑Pack for Nissan 1.6–2.5L OEM-Fit Replacement

MiKaFex 4-piece UF549 ignition coil pack paired with 9029 iridium spark plugs—an OEM-fit replacement set designed to restore reliable spark delivery across specified Nissan, Infiniti and compatible models.

This kit combines four UF549-style ignition coils and four 9029 iridium spark plugs engineered for direct-fit replacement on many 1.6L–2.5L Nissan and compatible engines. It addresses common ignition wear symptoms—such as hard starts, misfires, reduced power and uneven idling—by providing fresh coils and long-life iridium plugs that fit factory mounting and electrical connectors. Before purchase, verify fitment against the vehicle list or OEM part numbers to ensure compatibility.

Which vehicles and engines will these coil packs and plugs fit?

The set is compatible with a broad range of Nissan and some Infiniti models that use UF549-style coils and 9029 spark plugs. Included years cover many Versa, Altima, Sentra, Rogue, Cube, NV200 and other listed models with 1.6L–2.5L engines. Check the supplied part numbers and the vehicle application list to confirm exact fitment for your chassis and engine code.

• Fits Nissan: Versa (2007–2011), Altima (2007–2018), Sentra (2007–2019), Rogue (2008–2018), Cube (2009–2014), NV200 (2013–2015), Frontier (2005–2018), and more.
• Also fits Infiniti models: Q70, Q70L, QX60 years listed; select FX50 and M56 models for cylinder locations 1–6.
• Verify against part numbers: UF-549, 22448ED000, 22448JA00A, UF549X, GN10241, IC629, etc.

How will replacing coils and iridium plugs improve engine performance?

Fresh ignition coils and iridium spark plugs restore consistent spark energy and timing, which helps reduce misfires, improves throttle response and can lead to smoother shifting behavior in electronically controlled transmissions. While results vary by vehicle condition, replacing worn ignition components often reduces rough idling and improves fuel burn consistency.

• Restores correct spark intensity and timing for balanced cylinder combustion.
• Reduces misfires and rough idle that cause hesitation under load.
• May improve fuel efficiency and reduce emissions linked to incomplete combustion.

What are the technical and quality details of these parts?

The coils are molded to OEM dimensions with the matching connector housings and mounting tabs for a direct replacement swap; the 9029 spark plugs feature iridium tips for extended service life and stable gap retention. The kit includes commonly referenced replacement numbers to help cross-check fitment before ordering. Installation requires basic hand tools and standard safety precautions when working on an engine.

• Coil cross-references: UF-549, C1696, COP292, UF549X and related numbers for verification.
• Spark plugs: 9029 iridium design for long wear and reliable spark.
• Direct-fit connectors and mounting for plug-and-play installation in listed vehicles.

How should I check fitment and install these parts?

Always compare your vehicle’s original coil and spark plug part numbers to the cross-reference list before purchase. For installation, replace one cylinder at a time to avoid mix-ups, tighten plugs to manufacturer torque specs, and ensure coil electrical connectors seat fully. If you’re not comfortable with ignition system work, have a qualified technician perform the replacement.

• Cross-check vehicle year/model/engine against the product compatibility list.
• Change coils and plugs one cylinder at a time; use correct torque and gap specs.
• If uncertain, consult a mechanic to avoid engine damage or misinstallation.

Who is this for? This MiKaFex coil-and-plug kit is intended for owners and mechanics working on mid-2000s to late-2010s Nissan and compatible Infiniti/Suzuki models that use UF549-style coils and 9029 iridium plugs. It suits DIYers replacing worn ignition components to eliminate misfires, improve starting reliability or renew routine maintenance, as well as professional shops seeking a complete four-cylinder replacement set. Always confirm compatibility with your vehicle’s specific engine code and OEM part numbers before ordering.