Ignition Coil and Iridium Spark Plugs for Nissan Sentra (2009-2012) 2.5L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2009-2012 Nissan Sentra

What it Does: Replaces degraded coil-on-plug packs and worn spark plugs to restore factory combustion efficiency, eliminate cylinder misfires, and stabilize idle across the entire RPM band.

The Stock Sentra Secondary Ignition Breakdown

The high-heat engine bay environment of the B16 Sentra subjects OEM ignition coils to severe thermal stress and dielectric breakdown. Over thousands of heat cycles, factory internal windings degrade and lower boot insulation weakens, causing high electrical resistance, current leakage, and inconsistent spark arc. Coupled with electrode wear on aging plugs, this deterioration leads to hesitation under load, decreased fuel economy, and P0300-P0304 misfire diagnostic trouble codes.

The Engineering Solution

This complete ignition tune-up kit features four high-grade coil-on-plug assemblies engineered with premium copper windings and high-dielectric epoxy potting to resist thermal fatigue and prevent voltage flashover. Paired with four fine-wire iridium spark plugs, this setup lowers required ignition voltage while maintaining superior spark kernel growth. The corrosion-resistant blade terminals and OEM-spec direct-fit connectors ensure drop-in installation with stable electrical conductivity under hard acceleration.

Technical Specifications

Compatibility

• 2009 Nissan Sentra SE-R / SE-R Spec V (2.5L L4 Gas)
• 2010 Nissan Sentra SE-R / SE-R Spec V (2.5L L4 Gas)
• 2011 Nissan Sentra SE-R / SE-R Spec V (2.5L L4 Gas)
• 2012 Nissan Sentra SE-R / SE-R Spec V (2.5L L4 Gas)

The Nissan Performance Caliber

Engineered to meet the rapid combustion demands of the QR25DE platform, this kit delivers consistent high-voltage discharge without ECM communication errors or check engine lights, restoring sharp throttle response to your Sentra.