Guide shield — a genuine BMW part, number 11 78 1 740 850. The number stamped on the part is 11781740850; BMW's catalog files it under the short number 1740850. You will find it on our Engine shelf, under Exhaust gas control systems.
It fits the E36 sedan, coupe, convertible and touring (320i, 323i and 328i, 1992–1999), with the M52 engine.
BMW draws it on the Lambda Probe Fixings (11_6071) diagram. It weighs about 54 g (0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
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.