EURORELIC

99970740440 · 999 707 404 40 · 999-707-404-40

999 707 404 40 Engine Camshaft Position Sensor O-ring (17.05x1.78mm)

Available newchecked 2026-10-13source: fcpeuro.commarket: US

Yes: Porsche 999 707 404 40 was listed as available new (US) on 2026-10-13 at fcpeuro.com.

Porsche part number 999 707 404 40 (99970740440) is the Engine Camshaft Position Sensor O-ring (17.05x1.78mm), an electrical part catalogued for the 996 (911 Carrera, 911 Carrera 4, 911 Turbo), 997 (911 Carrera, 911 Carrera S, 911 Carrera 4), 987 (Boxster, Boxster S, Boxster RS), 986 (Boxster, Boxster Roadster, Boxster Roadster S). As of our last check (2026-10-13, fcpeuro.com), it is still available new from Porsche. Also catalogued as 99970740441.

  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
    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

Listed as orderable new at fcpeuro.com when checked.

  • 🇺🇸 USAvailable newGenuine part listed for sale new at FCP Eurofcpeuro.com
View 99970740440 at fcpeuro.com

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 99970740440 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)

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“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.

Listed directly for 996 and 997 and 987 and 986 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 (0)

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

Notes & sources

OE number sources: 99970740440: listed as OE number(s) on fcpeuro.com 99970740441, 99970740440: listed as OE number(s) on fcpeuro.com

SourceUsed forChecked
FCP Euro: Porsche Engine Camshaft Position Sensor O-ring - Genuine Porsche 99970740441availability status2026-10-13
FCP Euro: Mercedes Porsche Engine Camshaft Position Sensor O-Ring - Bosch 1230210075part number / notes2026-10-13
FCP Euro: Porsche Engine Camshaft Position Sensor O-ring - Genuine Porsche 99970740441part number / notes2026-10-13