autoexact Ignition Coil and Iridium Spark Plug Kit for Nissan/INFINITI 3.5L V6 — 6 Coils + 6 Pre-Gapped Iridium Plugs, OE-Fit

This autoexact kit contains six direct-replacement ignition coils (UF550/C1670) and six pre-gapped iridium spark plugs engineered to restore reliable ignition for Nissan and INFINITI 3.5L V6 engines.

If your 3.5L V6 Nissan or INFINITI shows misfires, rough idle, or a check-engine light related to ignition components, this complete coil-and-plug kit gives you the parts needed for a full ignition tune-up. The set is built to match original-equipment specifications with epoxy-potted coils, heat-resistant PBT housings, and fine-wire iridium plugs pre-gapped for straightforward installation. Always verify fitment for model year and engine before purchasing to avoid incorrect parts.

Which vehicles and engines does this kit fit?

This kit is intended for 3.5L V6 Nissan and INFINITI models across a range of years. It is designed as a direct replacement to match OE form, fit, and function for the listed applications.

• Common Nissan fits include Murano (2009–2024), Pathfinder (2013–2024 variations), Maxima (2009–2014 & 2016–2023), and Altima (2007–2018).
• INFINITI coverage includes QX60 models (2014–2020, 2022–2024) and similar 3.5L V6 applications.
• OE reference numbers: UF550, C1670; other references include 93501, 94124, 4912 — always cross-check with your VIN.

How can replacing all coils and plugs help my car’s performance?

Replacing coils and plugs together addresses multiple common ignition failure points at once, reducing the chance of repeat repairs and restoring even spark delivery across cylinders. This kit pairs fully wound copper windings in the coils with iridium tips to support consistent combustion.

• May remedy misfires, rough idle, hesitation, and poor acceleration caused by worn ignition parts.
• Fine-wire iridium plugs promote stable ignition and efficient combustion; pre-gapped for convenience.
• Coils feature epoxy potting and PBT housings to resist heat, moisture, and vibration for daily driving durability.

What are the technical and installation details I should know?

The kit includes six coils and six pre-gapped iridium plugs, intended for a complete bank/service. Coils are factory checked and the plugs arrive pre-gapped to recommended clearances for most listed applications.

• Includes 6 ignition coils + 6 iridium spark plugs; direct-replacement design for listed vehicles.
• Each coil is high-voltage tested (35±2 kV secondary output) and epoxy-potted to improve insulation.
• Factory-applied dielectric grease and recommended torque: 11.06–14.75 ft·lb (15–20 N·m) for spark plugs.

How does warranty and support work if I need help with fitment or issues?

autoexact provides quality checks and support to help ensure compatibility and long-term use. If you’re unsure about fitment, provide your VIN or vehicle details to confirm before installing.

• Backed by a 2-year warranty and lifetime technical support from autoexact.
• Email support available for VIN-based fitment verification and troubleshooting guidance.
• Quality-tested coils and pre-checked plugs to reduce early-life failures and returns.

Who is this for: This kit is for DIY mechanics and professional technicians who need a full ignition service for Nissan/INFINITI 3.5L V6 engines. It suits owners experiencing ignition-related drivability issues or anyone performing preventive maintenance who prefers a single, OE-style kit with coils and iridium plugs included. Remember to confirm vehicle year, make, model, and engine before ordering to ensure correct fitment.