Ignition Coil and Iridium Spark Plugs for Lexus IS200t (2016-2017) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2016-2017 Lexus IS200t

What it Does: The ignition coil and iridium spark plug kit restores primary spark energy and eliminates high-boost combustion misfires on the 2016-2017 Lexus IS200t 2.0L turbo engine.

The Stock Lexus IS200t Ignition Degradation

The direct-injected, turbocharged 8AR-FTS engine generates high combustion pressures and severe thermal loads in the cylinder head. Over extended mileage, factory coil boots succumb to dielectric breakdown from continuous heat soak, allowing secondary ignition voltage to arc to the cylinder head rather than jumping the plug gap. Simultaneously, factory spark plug ground electrodes degrade under sustained boost pressure, widening the gap. This excessive resistance forces the ignition coils to draw excess primary current, resulting in hesitation under wide-open throttle, rough idle quality, and diagnostic trouble codes such as P0300 through P0304.

The Engineering Solution

This direct-replacement ignition assembly restores factory dwell times and peak voltage output across the ASE30 ignition system. The four pencil coils utilize high-temperature epoxy potting and heavy-duty silicone dielectric boots engineered to resist thermal degradation and motor oil contamination. Paired with fine-wire iridium spark plugs, the assembly features laser-welded center electrodes that minimize quench while requiring less ionization voltage to ignite dense air-fuel charges, ensuring stable flame kernel development under maximum turbo boost.

Technical Specifications

Compatibility

• 2016 Lexus IS200t Base Sedan 2.0L Turbo I4 (8AR-FTS)
• 2016 Lexus IS200t F Sport Sedan 2.0L Turbo I4 (8AR-FTS)
• 2017 Lexus IS200t Base Sedan 2.0L Turbo I4 (8AR-FTS)
• 2017 Lexus IS200t F Sport Sedan 2.0L Turbo I4 (8AR-FTS)

Frequently Asked Questions

Does this fit the ASE30 IS200t?
Yes, this is a direct fit for the 2016-2017 Lexus IS200t equipped with the 8AR-FTS engine.

Are the iridium spark plugs pre-gapped for direct installation?
Yes, the spark plugs are pre-gapped to factory OEM tolerances, though verifying gap clearance prior to threading is recommended mechanical practice.

The Lexus Precision Caliber

Engineered to meet the precise electronic parameters of the twin-scroll turbocharged 8AR-FTS platform, this ignition service kit provides factory-matched resistance, zero check engine light triggers, and immediate throttle response across the entire rev range.