One Stop Solutions 13529 Radiator

Radiator for Audi and Volkswagen Applications

This One Stop Solutions radiator, part number 13529, is built for direct replacement in select Audi and Volkswagen models. It is engineered for OE performance, with a drop-in fit and cooling-focused construction for daily driving and high-mileage use.

Key Features

• Hassle-free installation with a direct-fit design
• OE performance and consistent cooling output
• Engineering updates for improved cooling and longer service life
• Factory-spec fitted and torqued components
• Premium-grade tubes, fins, headers, tanks, and related components for added durability
• Core material: PA
• Core thickness: 26 mm
• No engine oil cooler, no transmission oil cooler, and no cap included

Detailed Description

One Stop Solutions 13529 is a main radiator replacement for a wide range of Audi A3, A3 Quattro, S3, Q3, TT Quattro, and TTS Quattro models, as well as Volkswagen Golf, Golf R, GTI, Golf SportWagen, Jetta, Tiguan, and Arteon applications. This radiator is built around a 26 mm core and uses upgraded cooling design details such as increased fin density and thicker core construction to address heat load in higher-mileage vehicles. The result is a direct replacement that supports stable engine temperature control in everyday use. This part cross-references Bosch 13529 and Spectra Premium CU13529 for the same application.

What This Radiator Helps Address

• Overheating caused by a worn or restricted radiator
• Coolant leaks from aging tanks, seams, or core damage
• Reduced cooling efficiency from clogged or deteriorated internal passages
• Temperature instability during stop-and-go driving or highway use
• Cooling system service needs on Audi and Volkswagen vehicles with main radiator replacement requirements

Installation Notes and Fitment

Fits 2022-2024 Audi A3, Main Radiator. Fits 2022-2024 Audi Q3, Main Radiator. Fits 2022-2024 Audi S3, Main Radiator. Fits 2020 Audi S3, Main Radiator. Fits 2022-2024 Volkswagen Golf R, Main Radiator. Fits 2016-2019 Volkswagen Golf R, Main Radiator. Fits 2016-2024 Volkswagen GTI, Main Radiator. Fits 2022-2024 Volkswagen Jetta, Main Radiator. Fits 2021-2024 Volkswagen Tiguan, Main Radiator. Fits 2022-2023 Volkswagen Arteon, Main Radiator. Fits 2022-2023 Audi A3 Quattro, Main Radiator. Fits 2020 Audi A3 Quattro, Main Radiator. Fits 2021-2023 Audi TT Quattro, Main Radiator. Fits 2019-2023 Audi TTS Quattro, Main Radiator. Fits 2019-2021 Audi Q3. Fits 2019-2021 Volkswagen Arteon. Fits 2021 Volkswagen Jetta. Fits 2015-2020 Audi A3. Fits 2016-2020 Audi TT Quattro. Fits 2015-2019 Audi A3 Quattro. Fits 2015-2019 Audi S3. Fits 2016-2018 Audi TTS Quattro. Fits 2016-2017 Volkswagen Golf, Main Radiator. Fits 2016 Volkswagen Golf SportWagen, Main Radiator. Fits 2015 Volkswagen Golf. Fits 2015 Volkswagen Golf R. Fits 2015 Volkswagen Golf SportWagen. Fits 2015 Volkswagen GTI.

Verify radiator dimensions, hose connections, and cooling system layout before installation. This unit does not include a cap, and it does not use an engine oil cooler or transmission oil cooler.

Quality Assurance

OSC radiators are tested during production, including checks of the cooler circuits before tank installation, core testing before assembly, and a final test after assembly. Components are fitted and torqued to factory specifications to support consistent fit and function.