EURORELIC

12 14 1 720 853 –Pulse generator

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

BMW part number 12 14 1 720 853 (12141720853) is the Pulse generator, an electrical part catalogued for the E32 (730i, 730iL, 735i), E34 (530i, 535i), E24 (635CSi). As of our last check (2026-10-08, bmwpartsdeal.com), it has been superseded by 12141720857. 2 aftermarket options, 1 repair guide below.

  1. 1 New from BMW
    Order the replacement number 12141720857
  2. 2 Aftermarket new
    2 options (OE supplier, quality)
  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
    1 repair how-to linked (forum, article, video)
  8. 8 Paid hunt
    We search dealers, breakers and forums for you.

Buy new

Replaced by 12141720857. Order the newer number.

  • 🇺🇸 USSupersededbmwpartsdeal.com
  • 🇪🇺 EuropeSupersededsuccessor 12141720857: Leebmann24 (DE): "3-4 Working Days" €143.78 (our Leebmann24 lookup of 2026-09-28)leebmann24.com
View 12141720853 at bmwpartsdeal.comCross-reference 12141720853 on RealOEMCatalog diagram (bmwfans.info)

Aftermarket options (2)

OE supplier (1)
Made by the company that supplied BMW (named in BMW's catalog, or labelled OE by the vendor).
Hella 009110531
BMW Crankshaft Position Sensor - Hella 12141720857
Listed for successorlists 12141720857why this tier
View Hella 009110531 at FCP Euro · $56.99Search eBay for Hella 009110531 ↗
source checked 2026-10-01
OE-equivalent / quality (1)
Established aftermarket brands built to the original design.
Meyle 3148990007
BMW Crankshaft Position Sensor - Meyle 12141720857
Listed for successorlists 12141720857why this tier
View Meyle 3148990007 at FCP Euro · $52.99Search eBay for Meyle 3148990007 ↗
source checked 2026-10-01

Each option links to the page that lists it as replacing this BMW number (price as listed on the check date). Tiers marked “brand class” are our classification of the brand, not a test of this part. Aftermarket parts are not BMW parts: quality varies and fitment is not guaranteed.

Where to buy

Every link opens 12141720853 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 12141720857 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

12141720853→12141720857

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

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.

Listed directly for E32 and E34 and E24 in our data (see Fits). Models below are other listings of the same number.

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 (1)

Write-ups and videos from owners, forums and specialists on removing and fitting this part. Summaries are ours; follow the link for the full steps, photos and torque values, and credit goes to the original author.

ArticleShiftBMWDifficulty: Easywritten for E24 / E28 / E34 / E32

Checking the M30 Engine Sensors ↗

Owner's checklist of M30 Motronic sensors with test values: crank position sensor gap and roughly 540 ohm resistance, the cylinder-ID pickup on the No. 6 plug lead, and the DME coolant temperature sensor's resistance cold and hot. Also covers refreshing vacuum lines and cleaning ignition parts.

Tools mentioned: Multimeter, feeler gauge, 4 mm vacuum hose

by Paul Axford · shiftbmw.com· link checked 2026-10-08

Notes & sources

Successor 12141720857 listed at $151.36 on bmwpartsdeal (InStock).