Genuine BMW N54 Index 12 Fuel Injector
If you are experiencing a rough idle, misfire, or check engine light, this could be the problem. Earlier fuel injectors have been a common failure item, this is the most up to date injector. It is highly recommended to replace older injectors also if your car is modified or you plan to modify it.
It is recommended to replace all six instead of mixing and matching. Vehicles with old injector 7585261 will need to inspect their existing injectors to determine if these can be replaced individually. With an index of 11 or greater, injectors may be replaced individually with a new injector. If the index is 10 or less, all 6 injectors in an inline-6 engine must be replaced. For V8s, all four in that bank must be replaced.
Note
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Each replacement comes with a seal ring preinstalled, and a new decoupling element.