Preheating control unit
12 21 7 788 32712217788327·short number 7788327Genuine BMW Part
Photos coming soon — see the BMW diagram below
02 View BMW DiagramSee this part on the official exploded view→Genuine BMW part 12 21 7 788 327: Preheating control unit. The number stamped on the part is 12217788327; BMW's catalog files it under the short number 7788327. You will find it on our Electrical shelf, under ALTERNATORMOUNTING PARTS. BMW has since replaced it with 7801201.
It fits the E46 sedan, coupe, convertible and touring (330d, 2003–2005), with the M57N engine.
BMW draws it on the Glow Plug Unit (12_1197) diagram. It weighs about 250 g (0.6 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
12 21 7 788 327122177883277788327Supersession
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- 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.