EURORELIC

12 12 1 722 587 –Pulse generator (ignition wiring sparkplug)

Supersededchecked 2026-09-28source: bmwpartsdeal.commarket: US+EU

BMW part number 12 12 1 722 587 (12121722587) is the Pulse generator (ignition wiring sparkplug), an electrical part catalogued for the E30 (320i, 325i, 325e), E34 (520i, 525i), E28 (520i, 525e). As of our last check (2026-09-28, bmwpartsdeal.com), it has been superseded by 12121722570.

  1. 1 New from BMW
    Order the replacement number 12121722570
  2. 2 Aftermarket new
    No sourced aftermarket equivalent yet
  3. 3 Used / NOS
    Search live listings on eBay US/DE.
  4. 4 Interchange
    No cross-model match in our data
  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

Replaced by 12121722570. Order the newer number.

View 12121722587 at bmwpartsdeal.comCross-reference 12121722587 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 12121722587 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 (successor 12121722570 where shown). 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.

Supersession chain

12121722587→12121722570

Older numbers on the left, newest on the right. Numbers without a record open a lookup.

Used & NOS listings

Cross-model interchange (5)

Listed directly for E30 and E34 and E28 in our data (see Fits). Models below are other listings of the same number.

Via successor numberCatalog match (partial list)shared number 12121722570bmwpartsdeal.com

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

E30
325e (1984-1987)325i (1987-1992)325is (1987-1990)325ix (1988-1991)
E34
525i (1989-1991)

US dealer fitment list (partial)

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

Successor 12121722570 listed at $203.39 on bmwpartsdeal (InStock).