OTO-KAUTOPARTS Ignition Coil & Iridium Spark Plug Kit 6-Pack UF557/4503 — Pre-Gapped, Direct-Fit for Jeep/Dodge/Chrysler

OTO-KAUTOPARTS delivers a complete ignition kit of six UF557 coil packs and six 4503 double iridium spark plugs engineered to restore reliable starts and smoother engine performance for compatible Jeep, Dodge and Chrysler 4-cylinder models.

This all-in-one replacement set combines high-dielectric coil packs with long-life iridium plugs to address misfires, rough idling, loss of power and poor fuel economy caused by aging ignition components. Designed to match or exceed OEM specifications, the kit is supplied pre-gapped and ready for plug-and-play installation, with parts and part numbers cross-referenced for quick compatibility checks.

Will this kit fit my vehicle?

Check the fitment list and your vehicle’s engine code before ordering. The kit is built for a range of 2.0L and 2.4L inline-4 engines across several model years; verify against your VIN or the vehicle listing.

• Compatible models include Jeep Compass (2007–2016), Patriot (2007–2016), Dodge Avenger (2008–2014), Journey (2009–2016), Chrysler 200 (2011–2014) and related Sebring/Caliber variants.
• Engine sizes covered: 1.8L, 2.0L and 2.4L inline-4, depending on the model year.
• Always cross-check the Amazon compatibility confirmation and the product’s part numbers (UF557 coils, 4503 spark plugs).

How do these coils and plugs improve engine performance?

The coil packs provide consistent high-voltage delivery while the iridium plugs sustain a stable, long-lasting spark. Together they reduce misfires, sharpen throttle response and support more efficient combustion without electrical loss from degraded parts.

• Iridium tips extend plug life and maintain steady ignition over longer mileage.
• Epoxy-resin sealed coil housings resist heat and chemical exposure for durability.
• High-conductivity internals in coils maintain strong spark energy under load.

What comes in the package and is installation difficult?

The kit includes six ignition coil packs and six double iridium spark plugs, all pre-gapped to factory settings for straightforward replacement. Installation is designed to be direct-fit on compatible engines; basic hand tools and normal mechanical knowledge are usually sufficient.

• Package contents: 6x UF557 coils and 6x 4503 iridium spark plugs.
• Plugs are pre-set—no additional gap adjustment required before installation.
• Typical installation: remove old coil and plug, fit new plug, seat coil and reconnect harness.

What warranty and support are provided?

OTO-KAUTOPARTS backs the kit with a 1-year warranty and responsive customer service to assist with fitment or installation questions. If compatibility or product issues arise, reach out for troubleshooting or replacement guidance.

• One-year limited warranty from the date of purchase.
• 24-hour customer service for fitment and installation support.
• Clear parts cross-references included for quick verification (UF557, 4503, and alternate OEM numbers).

Who is this for: This kit suits DIY mechanics, independent repair shops and owners of compatible Jeep, Dodge and Chrysler 4-cylinder vehicles who need a reliable, cost-effective full-ignition replacement. It’s ideal when multiple coils or plugs show wear, when intermittent misfires occur, or when you want to restore fuel efficiency and drivability with a single, plug-and-play purchase.