UF431 Ignition Coil Pack Iridium Spark Plugs Wire for 03-06 Kia Sorento 3.5L

This Ignition Coil Pack & Iridium Spark Plugs & Wire Set is a complete ignition tune-up kit compatible with 2003-2006 Kia Sorento 3.5L and matches OEM Part# UF431.

Product Overview

The UF431 ignition coil pack and iridium spark plugs and wire set provides a complete secondary ignition refresh for 2003-2006 Kia Sorento 3.5L V6 engines. This high-grade ignition coil pack kit delivers consistent spark energy to improve startup, idle quality, and fuel economy. Whether you're replacing misfire-prone original coils or doing a full tune-up, this set supplies all critical components in one box.

Key Features & Performance

• Pre-gapped iridium spark plugs for optimal spark and longevity
• High-output coil packs with fast rise-time for consistent cylinder firing
• Carbon-suppression plug wires reduce radio interference and ensure clean signal
• Exact-fit connectors and boots match OE harness and valve cover dimensions
• Complete kit includes all coils, plugs, and wires needed for a 6-cylinder engine
• Engineered to restore factory ignition performance and eliminate misfire codes

Fitment & Compatibility

• 2003 Kia Sorento 3.5L V6
• 2004 Kia Sorento 3.5L V6
• 2005 Kia Sorento 3.5L V6
• 2006 Kia Sorento 3.5L V6

Common Uses

• Complete ignition system overhaul during scheduled maintenance
• Resolving engine misfires, rough idle, and hesitation under acceleration
• Restoring lost fuel efficiency and power on high-mileage Sorentos
• Preventative replacement to avoid coil-on-plug failure on aging engines
• DIY garage and professional shop use—no special tools required

Technical Specifications

• Part Number(s): UF431
• Coil Configuration: Coil pack with 6-tower design
• Spark Plug Type: Iridium (pre-gapped)
• Wire Set: Silicone-jacketed, carbon-core suppression
• Quantity Included: 1 coil pack, 6 spark plugs, 1 wire set

Frequently Asked Questions

Q: Do I need to gap the iridium spark plugs before installation? A: No, the iridium spark plugs come pre-gapped from the factory; however, it's always safe to verify the gap matches your vehicle's specification.

Q: Will this kit fix my P0300 random misfire code? A: If the misfire is due to worn coils, plugs, or wires, this complete kit often resolves P0300 and cylinder-specific misfire codes, but a diagnostic scan is recommended to rule out fuel or mechanical issues.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.