Ignition Coil and Iridium Spark Plugs for Acura RDX (2013-2015) 3.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2013-2015 Acura RDX

What it Does: Restores factory secondary ignition output and eliminates cylinder misfires on the 3.5L V6 powertrain by replacing worn coil-on-plug packs and eroded plugs with precision-matched components.

The Stock RDX Coil Degradation and Arc Failure

Under repeated thermal cycling within the compact J-series engine bay, factory ignition coil boots suffer from dielectric breakdown, leading to high-voltage micro-arcing and intermittent misfire codes (P0300–P0306). Over extended service intervals, OEM plug gaps widen from standard erosion, increasing the required ionization voltage. This extra electrical resistance accelerates internal primary and secondary winding breakdown inside the coil packs, causing rough idle, reduced throttle response, and degraded fuel economy under variable cylinder management (VCM) transitions.

The Engineering Solution

This comprehensive kit features high-grade electrolytic copper internal windings engineered to maintain stable magnetic saturation and deliver consistent kilovolt output across all engine speeds. Reinforced thermoplastic PBT housings prevent thermal cracking and arc-over, while precision direct-fit blade terminals ensure secure electrical contact. Paired with fine-wire iridium spark plugs, the assembly lowers ignition voltage demand, stabilizes flame kernel development, and guarantees reliable cold starts and smooth high-RPM power delivery.

Technical Specifications

Compatibility

• 2013 Acura RDX Base / Technology Package (3.5L V6 - Gas)
• 2014 Acura RDX Base / Technology Package (3.5L V6 - Gas)
• 2015 Acura RDX Base / Technology Package (3.5L V6 - Gas)

The Acura Engineering Caliber

Engineered to meet exact factory tolerances, this complete ignition package ensures clean, misfire-free operation through all VTEC engagement zones without triggering check engine lights or hesitation under load.