CSF 3519 Radiator

OE-Style Cooling Replacement for Audi and Porsche

CSF radiator Part Number 3519 is an OE-style replacement built with a 1-row aluminum core and plastic tanks for direct-fit cooling performance. It is engineered for vehicles such as the Audi Q5, Audi A4 Quattro, Audi S5, and Porsche Macan, with fitment coverage across multiple Audi and Porsche applications.

The CSF 1 Row Plastic Tank Aluminum Core line focuses on factory-style construction and application-specific sizing. This radiator uses a cross-flow design with quick-connect inlet and outlet pipe connections, plus quick-connect oil cooler fittings for a clean replacement on supported vehicles.

Key Features

• CSF Part Number 3519
• 1-row aluminum core with plastic tanks
• Cross-flow radiator design
• Core dimensions: 28 3/8 in. length, 18 1/4 in. width, 1 1/4 in. thickness
• 1 1/2 in. left inlet and 1 1/2 in. right outlet
• High-efficiency plate-type oil cooler section
• OE-style plastic tanks and aluminum core construction
• Quick-connect inlet, outlet, and oil cooler fittings

Product Details

CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind tunnel testing. The brand has supplied radiators worldwide for decades and offers a broad catalog of application-specific designs. Part Number 3519 follows that OE-style approach with a plastic tank and aluminum core layout sized for direct replacement on supported Audi and Porsche models.

For search relevance, this radiator is a fitment-based replacement for Audi Q5 radiator replacement, Audi A4 Quattro cooling system service, Audi S5 radiator replacement, and Porsche Macan radiator replacement applications. It is also a strong match for drivers searching CSF 3519 radiator, CSF radiator 3519, or OE-style radiator for Audi Q5 and Porsche Macan.

This part cross-references Spectra Premium CU13278 for the same application.

What It Helps Address

• Overheating caused by a leaking or restricted radiator
• Coolant loss from cracked plastic tanks or aged seals
• Reduced cooling efficiency from a clogged core
• Transmission or engine temperature concerns on supported vehicles with integrated cooling circuits
• Fitment issues from non-OE-style replacement radiators

Installation Notes

Verify inlet and outlet orientation before installation. This radiator uses quick-connect fittings and an OE-style layout, so matching the original configuration is important for proper fitment. Inspect hoses, seals, and related cooling components during replacement, and confirm the vehicle’s cooling system is fully bled after installation.

Compatible With: Fits 2015-2018 Porsche Macan, N/A; Fits 2009-2017 Audi Q5, N/A; Fits 2014-2017 Audi SQ5, N/A; Fits 2015-2016 Audi A5, N/A; Fits 2008-2010 Audi A5, N/A; Fits 2016 Audi A6, N/A; Fits 2010-2013 Audi A6, N/A; Fits 2016 Audi A7, N/A; Fits 2010-2016 Audi S4, N/A; Fits 2012-2015 Audi A6 Quattro, N/A; Fits 2012-2015 Audi A7 Quattro, N/A; Fits 2009-2014 Audi A4 Quattro, N/A; Fits 2008-2014 Audi A5 Quattro, N/A; Fits 2010-2014 Audi S5, N/A.

Quality Assurance

CSF designs and builds radiators to ISO/TSO-certified factory standards and validates cooling performance during development. Part Number 3519 is built as an OE-style replacement for supported Audi and Porsche applications, with application-specific construction intended to match original equipment dimensions and connections.