Finned Differential Cover with Installation Kit - E46 (Except M3)

Original BMW finned differential cover kit reduces operating temperatures for improved performance and dependability.

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This complete E46 Finned Differential Cover Kit contains all of the parts required to be installed on any E46 323i, 323Ci, 325Ci, 325i, 325ix, 328Ci, 328i, 330Ci, 330i, or 330xi differential housing. If you have a custom limited-slip differential, you need this diff cover to protect your investment! 

During even short track sessions, the friction from the clutches and gears in your limited-slip differential heat up the fluid to a critical level - this is the reason you'll often see fluid seeping out of the vent hole after hard use. The massive cooling fins on this cover help to keep temperatures under control, which will increase differential life and avoid costly failure.

Kit Contents:
  • Genuine BMW Finned Differential Cover
  • Genuine BMW Differential Drain/Fill Plugs (2)
  • OEM Reinzosil Sealing Compound
  • Red Line 75W90 Differential Fluid (2)
  • Genuine BMW M10x60 Mounting Bolt*

*This kit includes 1 extended M10x60 mounting bolt, which is required when converting to the finned differential cover.  For the other 7 mounting holes, your factory bolts can be reused safely.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

3 Series
E46 (99-05) > 323Ci
E46 (99-05) > 323i
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 328Ci
E46 (99-05) > 328i
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi
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