RENNTech by CSF Mercedes R129 SL600 OEM+ / Performance All-Aluminum Radiator

RENNTech is regarded as the premier Mercedes-Benz specialist in North America and the foremost authority in Mercedes tuning. When the original SL600 radiator (129-500-10-03) was discontinued by Mercedes, they turned to the cooling experts at CSF for a solution. This radiator was not only found in the SL600, but also in the SL 72/70/73 AMG versions, as well as the coach built RENNTech SL 74 and SL 76.

The RENNTech by CSF radiator features 6.5mm multi-louvered fins. These fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while improving airflow over the 6mm OE fins. CSF was able to maintain the same tube and fin row count as the OE unit with a larger fin height due to the shorter but more efficient 2-Row B-Tubes. These features improve the core's ability to dissipate heat while being more structurally robust. CSF's Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance.

The combination of TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. This includes the 90° overflow pipe which is plastic on the OE unit. This pipe is known to crack on the original radiator requiring a full replacement. The All-Aluminum construction removes this weak point.

This radiator was designed to fit exactly like the OE unit, even down to the color scheme to mimic the original as best as possible. While most SL600's and AMG variants aren't known for cooling issues, they can overheat and heatsoak while sitting in traffic or during hard driving in hot environments. The modern 2-Row CSF core gives the cooling system more headroom for adverse conditions.

The additional cooling capacity is even more valuable for the larger displacement versions of the M120 V12. The 7.1L and 7.3L AMG engines produce over 500 hp, while RENNTech's 7.4L engine found in the SL 74 produces around 570 hp, and their latest 7.6L found in the new SL 76 puts out over 600 hp. All of these engines produce significantly more heat than the 6.0L (394 hp) powerplant. The RENNTech by CSF Radiator was designed and built to handle the heat from all of the R129's V12s.

Features

• 2-Row - 42mm Ultra-High-Performance Core
• Cooling Tubes with CSF's Exclusive B-Tube Technology
• 6.5mm Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• Integrated 5-plate transmission oil cooler in the left-hand side tank
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet Connections
• 100% All Aluminum TIG-Welded Construction
• Satin Black and Silver Finish for an OE Look
• True Plug-and-Play "Drop-in Fit" Installation Requires Absolutely No Modifications
• Individually Leak and Pressure Tested
• 2-Year Limited Warranty

Applications

OEM Part Numbers

• Mercedes-Benz: 129-500-10-03
• Mercedes-Benz: 129 500 10 03
• Mercedes-Benz: 1295001003

Warranty

Cooling Systems and Flexibles, Inc. (CSF) warrants CSF’s High-Performance Cooling Systems, under normal use and service, to the original purchaser of the vehicle in which the product was originally installed. For more information and details please visit the CSF Warranty Page

SKU# 7240 Warranty Term: 2 years