EURORELIC

34 33 6 785 664 –Brake master cylinder

Available newchecked 2026-10-08source: bmwpartsdeal.commarket: US (EU: not checked)

BMW part number 34 33 6 785 664 (34336785664) is the Brake master cylinder, a brakes part catalogued for the E88 (123d, 135i). As of our last check (2026-10-08, bmwpartsdeal.com), it is still available new from BMW. Interchange records list it on E82, E81, E87, E93, E92, E90 as well.

⚠ Safety-critical part. Have a qualified mechanic verify fitment and installation before driving.
  1. 1 New from BMW
    Listed as orderable new by the status source.
  2. 2 Aftermarket new
    No sourced aftermarket equivalent yet
  3. 3 Used / NOS
    Search live listings on eBay US/DE.
  4. 4 Interchange
    Same BMW number listed on 10 other chassis
  5. 5 Kit / reman
    None recorded yet
  6. 6 Community fix
    No forum workaround recorded yet
  7. 7 DIY guide
    No guide yet
  8. 8 Paid hunt
    We search dealers, breakers and forums for you.

Buy new

Listed as orderable new at bmwpartsdeal.com when checked.

View 34336785664 at bmwpartsdeal.comCross-reference 34336785664 on RealOEMCatalog diagram (bmwfans.info)

Aftermarket options (0)

No sourced aftermarket equivalent recorded yet. We only list brand numbers that a brand catalog or vendor page explicitly cross-references to this BMW number.

Where to buy

Every link opens 34336785664 at that seller: “View” = the part’s own page, “Look up” = the seller’s part-number page, “Search” = the seller’s search pre-filled with the number. You can order from either region.

United States

Europe (DE · UK · DK)

“Ships internationally” is shown only where we read it on the vendor’s own shipping page (checked 2026-09-28); otherwise check with the vendor. Import duties and taxes are the buyer’s responsibility. Amazon links carry our Associates tag, so we may earn a commission; other seller links are not affiliate links today.

Used & NOS listings

Cross-model interchange (47)

Same part numberCatalog match (partial list)bmwfans.info

Same BMW part number, but the source list is truncated or market-specific. More models may apply.

E93
320d N47320i N43320i N46N325d M57N2325i N52N325i N53
E92
320d N47320i N43320xd N47325d M57N2325i N52N325i N53
E90
320d M47N2320d N47320si N45323i N52323i N52N325d M57N2
E91
318d M47N2318d N47318i N46318i N43318i N46N320d M47N2
E84
X1 16d N47NX1 16i N20X1 18d N47X1 18d N47NX1 18dX N47X1 18dX N47N
F35
316Li N13320Li N20328Li N20328LiX N20335Li N55
F30
316i N13320i N20328i N20328iX N20
E82
123d N47S135i N54135i N55
E87
130i N52123d N47S130i N52N
E81
123d N47S130i N52N

+113 more models not listed by the source.

Community fixes (0)

No forum workaround recorded yet. If you know a thread, the hunt team wants to hear about it.

Kits, reman & retrofits (0)

No kit or reman service recorded yet.

DIY

No DIY route recorded yet.

Repair guides & how-tos (0)

No repair write-up or video linked for this part yet.

Notes & sources

Listed $528.31 on bmwpartsdeal. SAFETY-CRITICAL (brakes/steering/fuel/airbag): have a qualified mechanic verify fitment and installation.