Ignition Coil and Iridium Spark Plugs for Jaguar S-Type (2002-2008) 3.0L

$110.95

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Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2002-2008 Jaguar S-Type

What it Does: Restores factory secondary ignition voltage and combustion efficiency across all six cylinders by replacing aged coil packs and worn spark plugs with matched, high-dielectric components.

The Stock S-Type Thermal Degradation and Misfire Vulnerability

The AJ-V6 engine configuration locates coil-on-plug packs deep within the cylinder head spark plug wells, subjecting factory epoxy insulation and internal copper windings to extreme thermal cycling and dielectric breakdown. Over time, heat-induced micro-fracturing in the OEM coil casings causes high-voltage arc-over, leading to intermittent misfires (P0300-P0306), rough cold starts, unburnt fuel fouling catalytic converters, and sluggish throttle response under load.

The Engineering Solution

This 6-cylinder ignition kit incorporates reinforced, high-dielectric PBT plastic housings engineered to resist thermal degradation and internal breakdown. High-purity electrolytic copper primary and secondary windings maximize voltage step-up efficiency for a hotter, more stable spark discharge. Paired with fine-wire iridium electrode spark plugs featuring high-alumina ceramic insulators, this setup requires lower firing voltages, resists carbon fouling, and guarantees clean combustion across the powerband.

Technical Specifications

Fitment	2002-2008 Jaguar S-Type (3.0L V6)
Engine / Chassis	3.0L AJ-V6 (AJ30) / X200
Stock Output	240 hp / 221 lb-ft (Approx)
Part Numbers / Interchange	UF435, C1402, C-808, GN10327, XR822478, C2S42673, C2S11480, 6R8312A366BA

Compatibility

2002 Jaguar S-Type 3.0L V6 (Chassis: X200)
2003 Jaguar S-Type 3.0L V6 (Chassis: X200)
2004 Jaguar S-Type 3.0L V6 (Chassis: X200)
2005 Jaguar S-Type 3.0L V6 (Chassis: X200)
2006 Jaguar S-Type 3.0L V6 (Chassis: X200)
2007 Jaguar S-Type 3.0L V6 (Chassis: X200)
2008 Jaguar S-Type 3.0L V6 (Chassis: X200)

The Jaguar Precision Standard

European engine management systems demand precise secondary resistance values to prevent false misfire flags and CEL illumination. This kit meets OEM electrical impedance parameters, restoring seamless idle quality and instant throttle response.

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