EURORELIC

21 52 1 165 829 –Lock valve – Z4 M (S54)

Available newchecked 2026-10-08source: bmwpartsdeal.commarket: US+EU

BMW part number 21 52 1 165 829 (21521165829) is the Lock valve – Z4 M (S54), a drivetrain part catalogued for the E86 (Z4 M3.2). As of our last check (2026-10-08, bmwpartsdeal.com), it is still available new from BMW. Interchange records list it on E85, E46, E83 as well.

  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 3 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.

  • 🇺🇸 USAvailable newbmwpartsdeal.com
  • 🇪🇺 EuropeAvailable newLeebmann24 (DE): "3-4 Working Days" €74.66 (our Leebmann24 lookup of 2026-09-28)leebmann24.com
View 21521165829 at bmwpartsdeal.comCross-reference 21521165829 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 21521165829 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 (9)

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.

E46
316i N46316i 1.9 M43318d M47318d M47N318i N46318td M47N
E83
X3 2.0d M47N2X3 3.0d M57N
E85
Z4 M3.2 S54

+4 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 $65.63 on bmwpartsdeal.