Ignition Coil and Iridium Spark Plugs for Kia Sedona (2006-2012) 3.5L 3.8L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2006-2012 Kia Sedona

What it Does: Restores precise secondary ignition delivery and stabilizes cylinder flame propagation to eliminate misfires across transverse Lambda V6 engines.

The Stock Sedona Ignition Deterioration

Transverse engine packaging within the VQ chassis concentrates extreme heat around the rear cylinder bank, subjecting factory coil-on-plug boots and internal insulation to severe thermal degradation. Over continuous heat cycles, OEM coils develop micro-fractures in the potting resin, causing dielectric breakdown, high-voltage leakage, and intermediate misfires under load. Concurrently, standard electrode erosion widens the spark gap, forcing higher resistance onto the primary ignition circuit and deteriorating fuel efficiency.

The Engineering Solution

This complete six-cylinder ignition service package utilizes direct-fit ignition coils engineered with high-purity copper windings and heavy-duty dielectric epoxy encapsulation to resist internal arc-through under sustained underhood heat. Paired with fine-wire iridium center electrode spark plugs, this kit provides a focused spark kernel with reduced voltage requirement, ensuring crisp throttle response, optimized combustion under load, and sealed protection against cylinder well contamination.

Technical Specifications

Compatibility

• 2006-2010 Kia Sedona 3.8L V6 (Base, LX, EX)
• 2011-2012 Kia Sedona 3.5L V6 (LX, EX)

The Kia Dependability Standard

Engineered for high-mileage family haulers subjected to constant stop-and-go driving and sustained highway loads, this system prevents P0300-P0306 diagnostic trouble codes while restoring factory idle stability and smooth power delivery.