X4XZ Ignition Coil & Spark Plug Kit UF648 + 97390 6-Pack — Double Iridium, Direct Fit

X4XZ UF648 ignition coil packs paired with 97390 double iridium spark plugs replace six factory units to restore reliable spark, smoother idle, and improved drivability for compatible Chrysler, Dodge, Jeep, Ram and Volkswagen 3.6L engines.

This complete 6-pack set from X4XZ includes six UF648-style ignition coil packs and six 97390 double iridium spark plugs engineered to meet or exceed OE fit and function. Designed for a direct swap with the original equipment numbers, the kit helps address misfires, rough idling, reduced power and inconsistent starts by renewing both the high-voltage source and the spark tip. Materials and design choices focus on longevity, stable spark, and resistance to heat and electrical noise without changing engine tuning.

Which vehicles will accept this ignition coil and spark plug kit?

This X4XZ kit targets a wide range of Chrysler-Fiat group 3.6L engines and certain Volkswagen Routan models. It covers model years and platforms listed by original equipment cross-reference to ensure compatibility before purchase.

• Chrysler: 2011–2017 200, 2011–2023 300, 2011–2016 Town & Country
• Jeep: 2014–2022 Cherokee (3.2L), 2011–2015 Grand Cherokee, 2012–2017 Wrangler, 2018 Wrangler JK
• Dodge: 2011–2014 Avenger, 2011–2023 Challenger, 2011–2023 Charger, 2011–2015 Durango, 2011–2020 Grand Caravan, 2011–2019 Journey
• Ram & ProMaster: 2013–2018 Ram 1500, 2019–2024 Ram 1500 Classic, 2012–2015 Ram C/V, 2014–2021 ProMaster 1500/2500/3500
• Volkswagen: 2011–2014 Routan

How do the double iridium plugs and UF648 coils improve ignition performance?

Double iridium electrodes provide a durable, precise spark point that maintains consistency over long service intervals, while UF648 coils supply stable high-voltage output and resist electrical interference. Together they reduce misfires and help the engine run more smoothly without altering factory electronics.

• Double iridium tips: extended life and consistent spark quality
• Stainless-steel springs and ferrite suppressors reduce radio interference
• Thermoplastic connectors resist heat-related cracking and ensure solid electrical contact

What should I expect during installation and compatibility with OE parts?

The kit is built as an OEM-style replacement and matches common original reference numbers, so installation is typically a direct swap with no modifications. No manual is included, but the plug-and-play design makes it suitable for standard DIY maintenance or professional install.

• Replaces OE numbers including C1791, 5C1848, E1148 and more
• Pack contents: 6 ignition coil packs + 6 double iridium spark plugs
• Easy installation: direct-fit connectors and coil mounting points align with factory locations

What durability and support features are included with this replacement kit?

Materials and construction choices extend service life and preserve performance: iridium electrodes significantly outlast conventional plugs, and coil components use heat-resistant plastics and internal noise suppression. X4XZ also provides customer support for fitment or quality concerns.

• Spark plug life rated around 100,000 kilometers under normal use
• Internal ferrite noise suppressor for cleaner electrical environment
• One-year product service and 24-hour customer support from X4XZ

Who is this for: This six-pack X4XZ ignition coil and plug kit is intended for owners and technicians working on Chrysler, Dodge, Jeep, Ram and compatible Volkswagen 3.6L engines who need a full-cylinder ignition refresh. It’s useful for vehicles showing misfires, rough idle, decreased power or poor cold starts, and for anyone who prefers a complete set to replace all coils and plugs at once for uniform performance.