The CSF 8301 is a Euro-spec high-performance all-aluminum engine oil cooler for the 1992-1999 BMW E36 3-Series and M3, including the 323i, 323is, 325i, 325is, 328i, 328is, and E36 M3, as well as the E36/7 Z3. It uses a bar-and-plate core, upgraded from the original tube-and-fin design, with an Aero-Flow bar design, turbulated multi-louvered fins, 6 rows of cooling in a dual-pass top-and-bottom configuration, and fully TIG-welded extruded end tanks, in an OE-style black finish. It is a one-to-one replacement for the OEM unit at the factory mounting points and accepts factory oil-line connections; EU E36 M3 and US Z3 M models are a drop-in fit, while non-equipped E36 models need the BimmerWorld Euro oil-cooler bracket kit (compatible with OEM radiators or the CSF 3054).
- Type: Euro-spec all-aluminum engine oil cooler
- Core: Aero-Flow bar-and-plate, 6 rows, dual-pass top/bottom
- Fins: turbulated high-density multi-louvered
- Construction: fully TIG-welded extruded end tanks
- Connection: accepts factory oil lines (OE PN 17212227235)
- Finish: OE-style black
- Fitment: 1-to-1 OEM replacement; non-equipped E36 need BimmerWorld bracket kit
- Part number: 8301
Vehicle Applications
Direct fit on the following:
- 1992 BMW 325i (E36)
- 1993 BMW 325i (E36)
- 1994 BMW 325i (E36)
- 1995 BMW 325i (E36)
- 1992 BMW 325is (E36)
- 1993 BMW 325is (E36)
- 1994 BMW 325is (E36)
- 1995 BMW 325is (E36)
- 1996 BMW 328i (E36)
- 1997 BMW 328i (E36)
- 1998 BMW 328i (E36)
- 1996 BMW 328is (E36)
- 1997 BMW 328is (E36)
- 1998 BMW 328is (E36)
- 1999 BMW 328is (E36)
- 1998 BMW 323i (E36)
- 1998 BMW 323is (E36)
- 1999 BMW 323is (E36)
- 1995 BMW M3 (E36)
- 1996 BMW M3 (E36)
- 1997 BMW M3 (E36)
- 1998 BMW M3 (E36)
- 1999 BMW M3 (E36)
- 1997 BMW Z3 (E36/7)
- 1998 BMW Z3 (E36/7)
- 1999 BMW Z3 (E36/7)
- 2000 BMW Z3 (E36/7)
- 2001 BMW Z3 (E36/7)
- 2002 BMW Z3 (E36/7)
FAQ
What vehicles does the CSF 8301 fit?
The 1992-1999 BMW E36 323i, 325i, 328i, and M3 (3-Series) and the E36/7 Z3.
What core does it use?
An Aero-Flow bar-and-plate core with 6 rows in a dual-pass layout, upgraded from the OEM tube-and-fin design.
Is it a drop-in fit?
EU E36 M3 and US Z3 M models are a drop-in fit; other E36 models need the BimmerWorld Euro oil-cooler bracket kit.
Does it use factory oil lines?
Yes. It accepts the factory oil-line connections (OE part 17212227235).

