Ignition Coil & Iridium Spark Plugs for Subaru Crosstrek (2015-2017) 2.0L

Direct Replacement Ignition Coil & Iridium Spark Plugs for 2015-2017 Subaru Crosstrek

This complete ignition coil and iridium spark plug kit restores factory spark energy and combustion efficiency, resolving misfires and hesitation common in the 2.0L FB20 engine.

The Stock Crosstrek Ignition Degradation

Over time, the factory ignition coils on the FB20 experience internal winding breakdown and degraded epoxy potting due to continuous heat cycling from the engine block. This thermal degradation increases electrical resistance, leading to weak spark output. Concurrently, standard or worn spark plugs suffer from electrode erosion, widening the spark gap. This combination causes cylinder misfires, rough idling, hesitation during acceleration, and unburnt fuel entering the exhaust, which can ultimately damage the catalytic converter and trigger active check engine lights (P0300-P0304 codes).

The Engineering Solution

This kit replaces the failure-prone factory components with highly durable alternatives. The upgraded ignition coils feature premium copper wire windings and high-temperature epoxy potting, ensuring superior thermal resistance and consistent voltage delivery under heavy engine load. Paired with precisely gapped iridium spark plugs, the system benefits from an ultra-fine center electrode that requires less voltage to bridge the spark gap. Iridium's exceptionally high melting point guarantees stable spark performance and longevity, mitigating electrode wear. This precise spark timing maximizes the air-fuel burn within the combustion chamber, restoring factory power delivery, stabilizing idle RPMs, and optimizing overall fuel economy.

Technical Specifications

Compatibility

• 2015 Subaru XV Crosstrek 2.0L
• 2016-2017 Subaru Crosstrek 2.0L

The Subaru Caliber

Designed for the rigorous demands of all-wheel-drive utility, this ignition overhaul ensures reliable starting in cold climates and smooth, predictable power delivery whether navigating daily commutes or traversing remote trails.