Lambda Monitor sensor
11 78 1 739 84511781739845·short number 1739845Genuine BMW Part
Photos coming soon — see the BMW diagram below
08 View BMW DiagramSee this part on the official exploded view→Lambda Monitor sensor — a genuine BMW part, number 11 78 1 739 845. The number stamped on the part is 11781739845; BMW's catalog files it under the short number 1739845. You will find it on our Engine shelf, under Exhaust gas control systems.
It fits the E36 sedan, coupe, convertible and compact (318i and 318ti, 1992–1999), with the M44 engine — and the European-market versions. It also fits the E46 sedan, coupe, convertible and touring (320i, 323i, 328i and 330i, 1999–2006), with the M52 or M54 engines — and the European-market versions.
BMW draws it on 9 diagrams, among them Catalyst/Lambda Probe (18_0259) and Catalytic converter/front silencer (18_0316). It weighs about 137 g (0.3 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
11 78 1 739 8451178173984517398450258003561CATALYST/LAMBDA PROBE
Diagram 18_0259
Catalytic converter/front silencer
Diagram 18_0316
Catalytic converter/front silencer
Diagram 18_0329
Catalytic converter/front silencer
Diagram 18_0367
Catalytic converter/front silencer
Diagram 18_0368
CATALYST/LAMBDA PROBE
Diagram 18_0390
Exhaust system
Diagram 18_0418
Catalytic converter/front silencer
Diagram 18_0434
Exhaust system
Diagram 18_0458
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Every used part is inspected and graded before listing. Condition grades:
- Good — minimal wear, fully functional.
- Fair — normal wear, fully functional.
- Acceptable — visible wear, still functional.
Returns: 30 days if a part arrives damaged or isn't what the listing described. Full policy.
Shipping: Ships within the US. Orders ship within 1–2 business days; small parcels ship free on orders of $75.00 or more. Oversize items ship at a flat $49.99 each — free shipping does not cover them.