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FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
3 Series Parts

FMN Piston

BMW Part Number:11 25 7 790 702
11257790702short number 7790702
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One email the moment one is listed — nothing else.

Fits E46 — 320Cd, 320d, 320td, 330Cd, 330d
Select your vehicle to check fitment

Genuine BMW Part

Photos coming soon — see the BMW diagram below

FMN Piston – BMW diagram-- View BMW DiagramSee this part on the official exploded view

FMN Piston — a genuine BMW part, number 11 25 7 790 702. The number stamped on the part is 11257790702; BMW's catalog files it under the short number 7790702. You will find it on our Engine shelf, under Piston with rings and pin. BMW has since replaced it with 7799357.

It fits every E46 body style (320d, 320td and 330d, 2001–2005), with the M47N or M57N engines.

BMW draws it on 2 diagrams, among them Crankshaft-Pistons (11_2097) and Crankshaft-Pistons (11_2321). BMW lists the quantity used as “as required”. It weighs about 950 g (2.1 lb).

We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.

Details

BMW Part Number11 25 7 790 702
Also written as112577907027790702
QualityGenuine BMW · OEM
OE / Cross-Reference
GLEICHTEILBMW/SFT

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.