Single Injector vs. Complete Injector Set

If you have confirmed via diagnostic that only one injector is faulty, replacing that single injector is often adequate — especially on a lower-mileage engine.

However, if the vehicle has high mileage or the failed injector shows contamination consistent with dirty fuel, replacing the full set can prevent successive failures.

Sets are matched to the specific engine and are listed accordingly on our site. Always confirm the set quantity matches your engine's cylinder count.