Buy OEM 2003 Subaru Part # ST16611VL000. Fuel Injector. Fuel Injector A failed fuel injector will result in a misfire or bucking or hesitating under load in addition to a check

A Fuel Injector For a Vehicle.

INJECTOR SUB ASSEMBLY Fuel Injector

Fits WRX

Fuel Injector
A failed fuel injector will result in a misfire or bucking or hesitating under load in addition to a check engine light. If your 2003 Subaru has similar symptoms, contact the Subaru service department.