Deliver a strong spark and consistent firing with the Beck/Arnley direct ignition coil 178-8559, a direct-fit replacement for the 2017-2018 Subaru Forester (H4-2.0L, H4-2.5L) and the 2015-2021 Subaru WRX (H4-2.0L). This coil-on-plug unit steps up battery voltage to the high voltage needed to fire the spark plug, and it’s engineered to match the original equipment form, fit and function for these foreign-nameplate applications.
- Copper windings: primary and secondary windings are made from copper.
- Heat-tolerant build: made from premium materials selected to withstand high operating temperatures.
- 3-terminal male connector: features a 3-terminal, male-gender connection.
- Application-specific fit: designed to install out of the box for this vehicle; mounting hardware is not included.
Signs a coil may need replacing include engine misfire, rough idle, hesitation, or an illuminated check engine light; diagnose the cause before replacing. The listed applications use four coils per engine, so check how many your vehicle needs — this listing is for one coil. Country of origin: Japan.
Interchange: E1247 · U5356 · C888 · UF747 · 22433AA700 · W01332064344 · 5C2101
