EURORELIC

12 31 1 277 226 –Rmfd generator (55A) [prod. Feb '81 - Dec '96]

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

BMW part number 12 31 1 277 226 (12311277226) is the Rmfd generator (55A) [prod. Feb '81 - Dec '96], an electrical part catalogued for the E26 (M1). As of our last check (2026-10-08, bmwpartsdeal.com), BMW lists it as no longer available new (NLA). Newer number: 12311277504. Interchange records list it on E28, E24, E21, E12, E23, E30 as well.

  1. 1 New from BMW
    Superseded, but the successor is also discontinued.
  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 8 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

Not available new according to the status source (US checked). NLA can be market-specific, so try the other region below.

View 12311277226 at bmwpartsdeal.comCross-reference 12311277226 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 12311277226 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 12311277504 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

12311277226→12311277504

Successor also discontinued per source

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

Used & NOS listings

Cross-model interchange (30)

Via successor numberCatalog match (partial list)shared number 12311277504bmwfans.info

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

E12
518 M10520 M10525 M30528 M30528i M30530i M30
E23
728 M30728i M30730 M30732i M30733i M30735i M30
02
1502 M101600 M101600GT M101600ti M101602 M101802 M10
E24
628CSi M30630CS M30633CSi M30635CSi M30
E21
315 M10316 M10318 M10320 M10
NK
2000C M102000CS M10
E28
518 M10
E30
316 M10

+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

Superseded chain 12311277226 > 12311277504; final PN also discontinued on bmwpartsdeal.