The CSF7240 is a RENNTech by CSF OEM+ all-aluminum radiator for the V12-powered Mercedes-Benz R129 SL. It was developed with RENNTech after Mercedes discontinued the factory part (OE 129-500-10-03) and is a direct drop-in using the factory mounting points, fan and shroud. It upgrades the OE plastic-tank, crimped-core design to a 100% TIG-welded all-aluminum core with CSF's B-Tube technology for about 15% better heat transfer, sized to handle the heat of the 6.0L through 7.6L V12 builds.
Specifications
- Core: 2-row aluminum, 42mm thick (55 tubes, 56 fin rows)
- Fins: 6.5mm multi-louvered (OE is 6mm)
- Tanks: aluminum (OE is plastic)
- Construction: 100% TIG-welded with CSF B-Tube technology
- Inlet/outlet: 42mm (V12)
- Integrated 5-plate transmission oil cooler in the right end tank (OE M14 x 1.5 fittings)
- Finish: satin black end tanks, uncoated aluminum core
- Drop-in fit using factory mounts, fan and shroud
- Individually leak and pressure tested
- 2-year limited warranty
- OE reference: 129-500-10-03
- Part number: CSF7240
Vehicle Applications
This part fits the following:
- 1993 Mercedes-Benz 600SL
- 1994 Mercedes-Benz SL600
- 1995 Mercedes-Benz SL600
- 1996 Mercedes-Benz SL600
- 1997 Mercedes-Benz SL600
- 1998 Mercedes-Benz SL600
- 1999 Mercedes-Benz SL600
- 2000 Mercedes-Benz SL600
- 2001 Mercedes-Benz SL600
- 2002 Mercedes-Benz SL600
- 1995 Mercedes-Benz SL 72 AMG
- 1996 Mercedes-Benz SL 70 AMG
- 1997 Mercedes-Benz SL 70 AMG
- 1997 Mercedes-Benz SL 73 AMG
- 1998 Mercedes-Benz SL 73 AMG
- 1999 Mercedes-Benz SL 73 AMG
- 2000 Mercedes-Benz SL 73 AMG
- 2001 Mercedes-Benz SL 73 AMG
This radiator also covers RENNtech V12 builds including the 7.4L SL 74 (1993-1998) and 7.6L SL 76 (1991-2001). It does not fit non-V12 R129 SL models; a different CSF radiator applies to the V8 SL500.
FAQ
Which Mercedes models does the CSF7240 fit?
It fits the V12 R129 SL: the 1993 600SL, the 1994-2002 SL600, and the SL 70, SL 72 and SL 73 AMG models. It does not fit non-V12 R129 SL models.
Is it a direct replacement for the discontinued OE radiator?
Yes. It is a drop-in using the factory mounting points, fan and shroud, and replaces OE part 129-500-10-03.
What makes it better than the OE radiator?
It uses a 100% TIG-welded all-aluminum core with aluminum tanks and CSF's B-Tube technology, in place of the OE plastic-tank crimped-core design.
Does it include a transmission cooler?
Yes. It has an integrated 5-plate transmission oil cooler in the right end tank using the OE M14 x 1.5 fittings.
