Home › Browse Parts › 2004 BMW Z4 (E85) 2.5L ENGINE PRE / POST CAT O2 OXYGEN LAMBDA PROB SENSOR SET-4

7 detailed photos of the actual item — this exact part is what ships.

From donor vehicle 2004 BMW Z4 (stock AA0992).

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2004 BMW Z4

2004 BMW Z4 (E85) 2.5L ENGINE PRE / POST CAT O2 OXYGEN LAMBDA PROB SENSOR SET-4

$43.24 List $45.52
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Order now and your order ships tomorrow — same-day shipping when ordered by 11 AM Pacific on a business day.

Estimated arrival: Monday, July 20 to Friday, July 24 — it's common for this to vary by a day or two.

Genuine OEM — exact item pictured. The photos show the actual factory-original part you’ll receive — inspected, cleaned, and carefully packed.

What you see is exactly what you get

No stock photos, ever. Every listing shows the actual part that will ship to you — already pulled and cleaned — so you can confirm it's exactly what you need, in the condition you expect, before you buy. All backed by a free 90-day warranty and hassle-free returns.

Free 90-day warranty + hassle-free returns

Wrong part? Changed your mind? For eligible lower-48 + DC orders, returns are on us for ANY reason — hit the Contact Viking button for a prepaid label. Refunds are always cash to your payment method, never store credit.

Same-business-day shipping

We ship same business day if ordered before 11 AM Pacific — every part is already pulled, cleaned, and on the shelf, not buried in a car in the yard.

Free shipping (lower 48 + DC)

For eligible destinations, the checkout math stays calm: the listed direct price is the price that ships.

ASE-tested big stuff

Engines and transmissions are tested by our ASE Master Mechanic before listing.

Viking Item ID 113960

Does this fit my vehicle?

Paste your 17-character VIN — it’s on your registration, insurance card, or the driver’s-door jamb.

We verify factory/OEM fitment only — upgrades, retrofits, and custom applications may need parts or coding we can’t verify or guarantee.

Item Specifics

Donor vehicle
2004 BMW Z4
Donor VIN
4USBT33474LS48647
Donor miles
83,066
Part number (OEM)
11781742050, 1742050, 11781433940, 1433940, 11787513962, 7513962, 11787513963, 7513963
Brand
BMW (Genuine OEM)
Stock #
AA0992
Viking Item ID
113960

2.5L, M54, OXYGEN SENSOR SET/4, 11781742050, 1742050, 11781433940, 1433940, 11787513962, 7513962, 11787513963, 7513963

  • ✓These photos show the exact individual part you'll receive — no stock photos
  • ✓Genuine OEM — factory-original parts
  • ✓Inspected before listing — engines & transmissions tested by an ASE Master Mechanic
  • ✓FREE 90-day warranty & 90-day any-reason returns — we cover return shipping for eligible lower-48 + DC orders, freight included (details)
  • ✓Order by 11 AM Pacific on a business day — ships that same day (holidays excluded)
  • ✓Want longer coverage? Extended warranties to 180 or 365 days — see options
Ask about this part / verify fitment — free, no pressure