OTO-KAUTOPARTS Ignition Coil Pack & Iridium Spark Plug Kit for Nissan Altima/Versa — Set of 4

OTO-KAUTOPARTS ignition coil packs paired with double iridium spark plugs replace worn units on many Nissan and Infiniti 4‑cylinder engines to restore smooth starts, reduce misfires and improve throttle response.

This all-in-one kit includes coil packs (UF549 compatible) and 9029 double iridium spark plugs designed for a broad range of Nissan and Infiniti models from 2007–2018. Each component is built to meet or exceed OEM specifications: coils use high-strength housings and epoxy for heat resistance, while iridium plugs offer long life and consistent spark performance. The set is supplied with parts that map to common replacement numbers, making cross-referencing to your vehicle straightforward.

Which vehicles will this coil and spark plug kit fit?

This kit fits many Nissan compact and midsize models and selected Infiniti variants with the specified engines. Verify engine code and year before ordering—compatibility covers 1.6L, 1.8L, 2.0L and 2.5L L4 engines and some Infiniti V8/L4 models listed in product documentation.

• Nissan: Altima, Versa, Sentra, Cube, Rogue, March, NV200, Pathfinder, NP300/Frontier, Tiida, Urvan, X‑Trail (various years 2007–2018).
• Infiniti: QX60 Q70/Q70L QX70 and select FX/M56 models where listed.
• Cross‑ref numbers: Coil UF549, C1696, 5C1753, E1049, 22448JA00A; Plugs 9029, DILKAR6A11, VR8NII35U, 22401‑JA07B, 22401‑JA01B.

How do these parts improve engine performance and reliability?

New coils and iridium plugs can eliminate common ignition issues such as misfires, rough idle and sluggish acceleration when original components wear out. The iridium tip maintains stable sparking longer than standard plugs, while reinforced coil housings protect against heat‑related degradation.

• Consistent spark reduces misfires and stabilizes idle.
• Iridium electrodes extend service intervals compared with conventional plugs.
• High‑dielectric epoxy and copper windings improve coil durability.
• Factory‑match dimensions enable straightforward replacement.

What are the key technical features and installation notes?

The kit combines premium materials with OEM‑style fitment to make replacement direct and reliable. Installation generally requires basic hand tools and attention to torque specs; always replace coils and plugs one cylinder at a time and confirm gaps and torque to manufacturer values.

• Double iridium spark plugs rated for long life and consistent ignition.
• Coil packs feature epoxy potting and high‑strength housing for heat resistance.
• Supplied quantities: ignition coil packs x4 and double iridium spark plugs x4 (package references 6 in extended listings—confirm your specific kit count before purchase).
• Includes common replacement part numbers for cross‑checking with OEM.

What warranty and support come with this replacement kit?

OTO-KAUTOPARTS provides a one‑year warranty and customer support to address fitment or quality questions. If compatibility or installation issues arise, contact the seller with your vehicle VIN and engine code for direct assistance.

• 1‑year limited warranty included.
• 24‑hour customer service for compatibility and installation help.
• Clear cross‑reference part numbers for fast verification.

Who is this for: This kit is aimed at owners and independent mechanics working on Nissan and compatible Infiniti models who need a reliable, cost‑effective ignition rebuild. It's particularly useful for vehicles exhibiting misfires, reduced fuel efficiency or rough cold starts where coil packs and spark plugs are known wear items. If you want OEM‑style fitment with upgraded iridium longevity, this set supplies the parts and support to complete the job with confidence.