CNPAPC 4-PC UF549 Ignition Coil Pack Kit with 9029 Iridium Spark Plugs — Direct-Fit for 2007–2019 Nissan & Infiniti

The CNPAPC 4 PCS UF549 ignition coil pack kit with 9029 iridium spark plugs is a drop-in replacement set engineered to restore reliable spark performance for compatible Nissan and Infiniti 1.6L–5.6L engines.

This complete kit combines four UF-549 coil packs with four 9029 DILKAR6A11 iridium spark plugs so you can replace worn ignition components at once. Built to match OE electrical and mounting dimensions, the coils and fine-wire iridium plugs aim to reduce misfires, improve start-up response, and help return fuel economy to expected levels when installed in supported Nissan and Infiniti models. Every set is bench-tested and backed by a 12-month warranty for peace of mind.

Which vehicles and engines does this coil pack and spark plug kit fit?

The kit is designed to fit a broad range of Nissan and Infiniti models from model years 2007 through 2019 across multiple engine displacements. Confirm compatibility with the specific engine code and year before purchase.

• Nissan: Altima (2.5L L4), March (1.6L), NP300/Frontier (2.5L), Rogue/Rogue Select (2.5L), Sentra/Tiida/Versa/X-Trail in listed years and displacements.
• Infiniti: FX50, M56, Q70/Q70L, QX60, QX70 V8 and select V6/L4 models as specified.
• Cross-references: UF-549, C1696, 5C1753, 22448-ED000 and other OEM/aftermarket part numbers listed for fit verification.

How do the iridium 9029 plugs and UF-549 coils improve engine performance?

The iridium plugs use a fine-wire center electrode that enhances ignition reliability while the UF-549 coil packs deliver consistent high-voltage output. Together they reduce weak sparks and misfires, especially on engines with aging ignition systems.

• Iridium electrode improves ignitability and combustion stability under varied conditions.
• Coil packs designed to supply steady voltage across each cylinder for smoother idling.
• Combined replacement helps restore throttle response and can stabilize fuel economy.

Is installation difficult and will I need programming or special tools?

Installation is intended to be straightforward: the coils and plugs are engineered as direct-fit replacements that bolt into the factory locations. No ECU programming is required in most cases, but basic hand tools and a torque wrench are recommended for correct spark plug seating.

• Direct-fit design follows OE mounting points and electrical connectors.
• No special adaptors or reprogramming needed for standard engine swaps.
• Recommended: spark plug socket, torque wrench, anti-seize and dielectric grease for terminals.

What durability and support can I expect from this replacement kit?

CNPAPC specifies extended service life for the iridium plugs and tests coil packs before shipping. The combination is built for long-term use under normal driving conditions and is covered by a one-year warranty to address manufacturing defects.

• Iridium plugs rated for extended service life—designed for long intervals under normal use.
• Coil packs bench-tested to ensure consistent electrical performance before shipment.
• 12-month warranty and customer support included with purchase.

Who is this kit best for? If you own a Nissan or Infiniti listed above and are experiencing misfires, rough idle, reduced fuel economy, or you simply want to proactively replace aging ignition components, this CNPAPC kit provides a practical, cost-effective solution. It suits DIY enthusiasts who can perform basic engine maintenance and professional technicians looking for a full plug-and-coil service package. Always verify compatibility by engine size and model year before ordering to ensure a correct fit.