This high-quality Topran radiator hose (thermostat to cylinder head hose / coolant hose) is a direct replacement for OEM part number 11537544638 and Topran reference 502856. It ensures proper coolant flow between the thermostat and engine, helping maintain optimal operating temperature.

Key Features:

* Direct replacement for OE part number 11537544638
* Topran reference number: 502856
* Radiator hose / coolant hose / thermostat to cylinder head hose
* Ensures efficient coolant circulation
* Helps maintain correct engine temperature
* Durable rubber construction for long service life
* Suitable for right-hand drive (RHD) vehicles

Compatible With:

* BMW 5 Series (E60, E61) - 523i, 525i, 530i (2004-2010)
* BMW 6 Series (E63, E64) - 630i (2004-2010)
* BMW 7 Series (E65, E66, E67) - 730i (2005-2008)

Compatible Engine Codes:

* N52B25, N52B30

Year Range:
2004, 2005, 2006, 2007, 2008, 2009, 2010

This is an aftermarket replacement part, not a genuine BMW component.

Shipping

We're committed to delivering fast, reliable shipping across New Zealand.

Most orders are processed within 24 hours (Monday to Friday) and shipped via overnight service for small items.

Larger items typically arrive within 1-2 business days.

You'll receive a tracking link as soon as your order is collected for delivery.

✅ Fitment Confirmation


European vehicles can vary significantly by build date, trim level, and factory options.
That’s why we ask for your rego at checkout.

Our team manually verifies every order against official manufacturer parts catalogues to ensure 100% correct fitment before dispatch.

You don’t need to decode VIN numbers or production splits — we handle the technical side for you.
To qualify for our 100% Fitment Guarantee, please provide your rego when ordering.

Orders placed without a rego or VIN cannot be covered under our Fitment Guarantee.

Related Products

Recently Viewed Products