VW Golf V / VI, Passat B6, Jetta, Tiguan Engine Radiator 1TD121203B

Product overview

This new engine radiator is a replacement for a wide range of Volkswagen PQ35/PQ46-era models, referenced to OE number 1TD 121 203 B. It is a good fit for workshops dealing with leaking, corroded or impact-damaged radiators and is offered in two core construction options.

Radiators on these vehicles can fail through corrosion, cracked end tanks or blocked cores, leading to overheating or coolant loss. A fresh radiator restores cooling capacity, which is important for both turbo petrol and diesel engines, particularly when towing, climbing hills or driving in warm weather.

Vehicle compatibility

The listing shows 19 applications, including Volkswagen Golf V (2003–2009) and Golf VI (2008–2013) with GTI, TDI and R32 engines, Golf V/VI Variant, Jetta III (2005–2010), Passat B6 saloon and Variant 2.0 FSI, Passat CC 2.0 TSI, Tiguan 2.0 TFSI 4motion, Eos 2.0 TFSI and 3.2 V6, and Caddy III 1.2 TSI. Confirm by OE number or VIN before ordering.

Key features

• Choice of aluminium brazed or expanded-pipe core
• Referenced to OE number 1TD121203B
• Covers petrol and diesel applications listed below
• New condition replacement

Technical specifications

Installation requirements

Let the engine cool before draining coolant. Access usually requires placing the front end into service position, so workshop fitting is recommended. Transfer any brackets from the old unit, refill with the specified coolant, bleed the system thoroughly and check for leaks at operating temperature.

Fitment checks before ordering

The part listing also refers to a fuel tank cooling fan, which does not match the radiator data, so please confirm this listing is for the radiator itself. Radiator thickness can vary with engine and gearbox. Check your existing part number and confirm by VIN before purchase.

Package inclusions

Contents as pictured/listed for the selected option; seals, clips 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.