VW Golf VI / Audi A3 8P / TT 1.8–2.0 TFSI Engine Radiator 5K0121253D

Product overview

This replacement engine radiator is referenced to OE number 5K0 121 253 D and suits turbocharged 1.8 and 2.0 litre petrol models across the Volkswagen, Audi and Seat range. The core measures 650 x 388 x 26 mm, and it is a practical choice where the original radiator is leaking, blocked or physically damaged.

Common reasons for replacing a radiator include corrosion of the core, cracked plastic end tanks and coolant loss at the seams. A healthy radiator is essential on turbocharged petrol engines, which generate significant heat under load and towing.

Vehicle compatibility

Listed fitment data covers 19 applications, including Audi A3 (8P1), A3 Sportback and Convertible with 1.8 and 2.0 TFSI engines (2003–2013), Audi TT and TT Roadster 2.0 TFSI (2006–2014), Volkswagen Golf VI GTI, Jetta III and IV, Passat CC and Beetle 2.0 TSI/TFSI, and Seat Altea XL 1.8 TFSI. Confirm by OE number or VIN before ordering.

Key features

• Core size listed as 650 x 388 x 26 mm
• Choice of aluminium brazed or expanded-pipe core construction
• Referenced to OE number 5K0121253D
• New condition replacement

Technical specifications

Installation requirements

Allow the engine to cool completely before draining coolant. Fitting usually involves removing the front-end carrier or lowering the cooling pack, so a workshop is recommended. Refill with the correct coolant type, bleed air from the system and check for leaks once the engine reaches operating temperature.

Fitment checks before ordering

The part listing also mentions a condenser and water tank, so please confirm you are ordering the engine coolant radiator. Manual and automatic models may use different radiators. Check your existing part number and confirm by VIN before purchase.

Package inclusions

Contents as pictured/listed for the selected option; clips, seals and mounting hardware are not included unless stated.

Shipping information

Shipped from China to customers in Australia and New Zealand. Freight is calculated at checkout based on your delivery address, and actual freight is confirmed at the time of order.

Special Order Item

This product is a special-order item sourced specifically for your vehicle. Please allow an estimated lead time of 3-4 weeks for sourcing and delivery. Lead times are estimates and may vary depending on supplier availability, order processing, and international shipping. We recommend confirming availability before placing your order.