Bracket knock sensor — a genuine BMW part, number 12 52 1 247 947. The number stamped on the part is 12521247947; BMW's catalog files it under the short number 1247947. You will find it on our Electrical shelf, under Other Engine Electrical System parts.
It fits the E36 sedan, coupe, convertible and compact (318i and 318ti, 1992–1999), with the M44 engine.
BMW draws it on 2 diagrams, among them Engine block mounting parts (11_1558) and Engine block mounting parts (11_6100). It weighs about 29 g (under 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.