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3 Series Parts

FMN Piston

BMW Part Number:11 25 7 790 703
11257790703short number 7790703
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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

Genuine BMW part 11 25 7 790 703: FMN Piston. The number stamped on the part is 11257790703; BMW's catalog files it under the short number 7790703. You will find it on our Engine shelf, under Piston with rings and pin. BMW has since replaced it with 7799359.

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 946 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 7 790 703
Also written as112577907037790703
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.