X4XZ UF624 Ignition Coil & 97390 Double Iridium Spark Plug Kit — 6‑Pack for Acura/Honda 3.5L–3.7L, OE Fit & Long-Life

The X4XZ UF624 ignition coil and 97390 double iridium spark plug kit is a six-pack replacement set engineered to restore reliable ignition and smoother running for select Acura and Honda 3.5L–3.7L engines.

This complete kit includes six ignition coil packs (OE UF624) and six double iridium spark plugs (97390 / 30520-RN0-A01) designed to match or exceed original equipment fit and function. The coil packs use durable thermoplastic connectors and internal noise suppression to protect electronics and deliver steady high-voltage transfer, while the double iridium plugs offer extended service life and consistent spark performance. The set targets a range of Acura and Honda V6 models, helping address common ignition issues like misfires, rough idle, and reduced power that occur with worn coils or plugs.

Which vehicles are compatible with this X4XZ ignition kit?

This kit is manufactured to fit several Acura and Honda V6 models. It’s primarily specified for late-2000s to mid-2010s vehicles; confirm compatibility against your VIN or engine code before ordering.

• Acura MDX (2010–2013) with 3.7L engine
• Acura RDX (2013–2015) with 3.5L engine
• Acura ZDX (2010–2013) with 3.7L engine
• Honda Pilot (2009–2015) and Ridgeline (2009–2014) with 3.5L engines

How do these ignition coils and spark plugs improve engine performance?

The coil packs and double iridium plugs are engineered to restore reliable ignition timing and strong, consistent sparks. Improved spark stability reduces misfires and promotes smoother idle and acceleration without altering engine tuning.

• Double iridium electrodes provide longer life and steady sparking over extended mileage (up to ~100,000 km under normal conditions)
• Thermoplastic coil connectors resist heat-related cracking for consistent electrical contact
• Ferrite noise suppression in the coil reduces radio frequency interference with vehicle electronics

What should I expect during installation and maintenance?

These components are built to match OE dimensions for a straightforward swap. Basic hand tools and following factory torque specs are usually sufficient; professional installation is recommended if you’re uncertain about ignition-system service.

• Kit contains 6 coil packs and 6 double iridium spark plugs—enough for one cylinder bank replacement on V6 engines
• Designed for plug-and-play installation with OE-style mounting and electrical connectors
• No printed manual included—refer to factory service guide or a mechanic for torque values and gap checks

What are the durability and warranty details for the X4XZ kit?

Materials and design choices prioritize long-term reliability and reduced interference with vehicle electronics. X4XZ provides a limited one-year product support window and customer service for installation or quality concerns.

• Double iridium plugs rated for extended life and steady performance over many kilometers
• Coil construction uses premium materials and internal spring design for robust voltage transfer
• One-year product service and 24-hour customer support from X4XZ for post-purchase issues

Who is this for? If your Acura or Honda V6 is showing symptoms like intermittent misfires, rough idling, decreased throttle response, or worsening fuel economy and it matches the compatible years/engines above, this X4XZ 6-pack coil and plug kit is intended as a direct replacement option. It suits DIY mechanics familiar with ignition work, independent repair shops, and owners seeking an OE-fit aftermarket solution that emphasizes durability and reduced electronic interference. Always verify vehicle compatibility and consult service documentation for correct installation procedures.