EURORELIC

37 12 1 137 323 –Pressure hose assy left

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

BMW part number 37 12 1 137 323 (37121137323) is the Pressure hose assy left, a suspension part catalogued for the E34 (520i, 524td, 525i). As of our last check (2026-09-28, bmwpartsdeal.com), BMW lists it as no longer available new (NLA). 1 kit or reman option below.

  1. 1 New from BMW
    No longer available new (per source; may be market-specific).
  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
    1 kit or service option
  6. 6 Community fix
    1 forum workaround (retrofit)
  7. 7 DIY guide
    Owner DIY route noted (no full guide yet)
  8. 8 Paid hunt
    We search dealers, breakers and forums for you.

Buy new

Not available new from the US or the European dealer we checked. BMW Classic or another dealer may still locate one with your VIN.

View 37121137323 at bmwpartsdeal.comCross-reference 37121137323 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 37121137323 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 (0)

No interchange recorded. That doesn't prove there isn't one; it means we have no sourced match yet.

Community fixes (1)

What owners did when this part was unobtainable, summarised from forum threads. Read the thread before you start. These are owner reports, not verified by EuroRelic or BMW.

RetrofitDifficulty: MediumSeveral threads agree

E34 self-leveling (SLS) delete: loop the pump output and fit conventional rear shocks

Remove the rear SLS struts, accumulators, regulating valve and lines, and fit normal rear shocks and springs. Loop the pump's SLS output back to the reservoir (or join the lines, as the BavAuto delete kit suggests). Keep the original pump and steering box. Flush and refill (owners run ATF), and jump the ride-height switch on the rear sway bar so the camber warning stays off. One owner reported 3 trouble-free years. Sedan and Touring springs share rates; Tourings sit a little lower. Another owner planned the alternative: fit a non-SLS power steering pump, remove the piping and replace the shocks and springs.

Parts / numbers mentioned: BavAuto SLS elimination kit, rear ride-height switch jumper

Kits, reman & retrofits (1)

Delete kit
Self-leveling delete + rear shock mount kit (incl. hydraulic line joiner 34326757282)
BimmerWorld
$149.99
View product page on bimmerworld.com ↗

DIY

SLS delete: join lines, fit non-SLS shocks/springs; BimmerWorld notes 535i PS pump is better but discontinued – bimmerworld.com

Repair guides & how-tos (0)

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

Notes & sources

Last listed $57.05 on bmwpartsdeal (not orderable).