Set of Six (6) BMW N54 Ignition Coils
BMW N54 ignition coils for the BMW 335i, 135i, 535i, or any other N54 powered BMW's.
N54 Ignition Coils are available in:
Bosch (OEM) - 12 13 8 647 689
Eldor (OEM) - 12 13 8 657 273
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(6) BMW N54 Ignition Coils
Bosch was the OEM supplier of BMW N54 ignition coils up until 2016; BMW then switched to using Eldor as the OEM supplier. Both are great options, however, the Eldor coils seem to perform better in extremely high horsepower N54 motors (550-600+whp).
We recommend replacing your N54 ignition coils every 50,000-60,000 miles on stock engines. Modified engines should see replacement in the ballpark of 20,000-40,000 miles depending upon specific mods and horsepower. Generally, the more power and boost you are running the more often you will need to replace your N54 coils.