Ignition Coil and Iridium Spark Plugs for Lexus CT (2011-2017) 1.8L

OEM-Spec Ignition Coil and Iridium Spark Plug Kit for 2011-2017 Lexus CT

What it Does: Restores precise secondary ignition output, eliminates rough cold-start transitions, and rectifies cylinder misfire codes on the 1.8L hybrid powertrain.

The Stock CT Ignition Breakdown

The 2ZR-FXE Atkinson-cycle engine operates under continuous stop-start hybrid cycling and aggressive exhaust gas recirculation (EGR) flow rates. Over extended mileage, thermal stress degrades the factory coil-on-plug epoxy insulation and internal windings, causing dielectric breakdown and voltage leakage. Combined with eroded spark plug gap clearances, this increased resistance demands excessive primary coil voltage, resulting in intermittent hesitation, rough engine engagement, and P0300-P0304 trouble codes.

The Engineering Solution

This direct-replacement ignition service pack utilizes heavy-duty internal copper windings insulated with high-dielectric potting compound to ensure uniform spark delivery without breakdown under peak thermal load. Paired with fine-wire iridium spark plugs, the assembly minimizes voltage requirements for arc initiation, supports efficient flame kernel propagation across lean air-fuel mixtures, and features OEM-spec terminal blade connectors for a plug-and-play installation.

Technical Specifications

Compatibility

• 2011-2017 Lexus CT200h Base (1.8L L4 Hybrid 2ZR-FXE)
• 2014-2017 Lexus CT200h F Sport (1.8L L4 Hybrid 2ZR-FXE)

The Lexus Reliability Standard

Engineered to preserve the smooth, vibration-free operation expected of a luxury hybrid platform. These matched components restore factory fuel efficiency, protect downstream catalytic converters from unburnt hydrocarbons, and maintain dependable combustion under all driving conditions.