Ignition Coil and Iridium Spark Plugs for Volvo S60 (2004-2009) 2.5L
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Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2004-2009 Volvo S60 2.5L
What it Does: Restores factory ignition energy and combustion efficiency by replacing degraded coil packs and worn spark plugs across all five cylinders.
The Stock S60 Ignition Breakdown
The turbocharged 2.5L inline-5 engine in the P2 chassis generates significant cylinder head thermal cycling. Over time, engine bay heat soak degrades the internal epoxy resin and primary/secondary copper windings inside the factory coil packs. This thermal stress causes micro-arcing, internal shorting, and reduced spark voltage under high boost pressure. Compounding this, worn factory spark plug gaps widen due to electrode erosion, drastically increasing the required firing voltage and leading to intermittent misfires, rough idle, and unburned hydrocarbon fouling under load.
The Engineering Solution
This comprehensive service kit includes five precision-wound coil-on-plug assemblies paired with five fine-wire iridium spark plugs. The ignition coils feature high-conductivity copper windings sealed with premium dielectric epoxy insulation to resist high-temperature breakdown and voltage leakage. Direct-fit blade terminals eliminate signal resistance. The matched iridium spark plugs utilize ultra-fine center electrodes to lower required ignition voltage, ensuring reliable arc initiation, optimal flame front propagation, stable cylinder pressures, and consistent cold-start characteristics.
Technical Specifications
| Fitment | 2004-2009 Volvo S60 2.5L Inline-5 |
| Engine / Chassis | B5254T2 (Modular Engine) / P2 Platform |
| Stock Output | 208 hp / 236 lb-ft |
| Part Number | UF517, 30713417, 307134170, E1017, GN10331 |
Compatibility
- 2004-2009 Volvo S60 2.5T (2.5L L5 Turbo)
- 2004-2009 Volvo S60 2.5T AWD (2.5L L5 Turbo)
- Interchange: UF517, 30713417, 307134170, E1017, 52-2133, IGC0166, IC597, C-780, GN10331, 178-8383, C1721
The Volvo Reliability Standard
Engineered to meet stringent European engine management requirements, this ignition kit maintains precise secondary resistance tolerances, preventing false knock detection and eliminating check engine lights for smooth, factory-grade throttle response.
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