Genuine BMW Part
Photos coming soon — see the BMW diagram below
04 View BMW DiagramSee this part on the official exploded view→Pulley — a genuine BMW part, number 11 51 7 840 403. The number stamped on the part is 11517840403; BMW's catalog files it under the short number 7840403. You will find it on our Engine shelf, under Coolant pump with drive. It supersedes the older number 7830704, so a part carrying that number is the same part.
It fits the E46 coupe and convertible (M3, 2001–2006), with the S54 engine.
BMW draws it on 2 diagrams, among them Cooling System-Fan/Fan Coupling (11_2179) and Cooling System-Fan/Fan Coupling (11_6214). It weighs about 210 g (0.5 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 51 7 840 403115178404037840403Supersession
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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.