Alpha 1.045321 Diverter Valve Motor – Replaces 1.033918 – Brand New

The Alpha 1.045321 Diverter Valve Motor controls the flow of water between the central heating and domestic hot water circuits. It replaces the previous part number 1.033918 and helps restore smooth switching inside the boiler.

This motor plays an important role in directing heated water to the correct circuit. A faulty motor may cause heating or hot water failure, so replacing it can help restore reliable boiler operation.

Compatible Alpha Boilers

Alpha Eco 2 Series

Alpha E-Tec Series

Alpha Intec 2 Series

For the Alpha 1.022221 DHW Heat Exchanger, please follow the relevant product link.

Why Choose This Product?

The Alpha 1.045321 Diverter Valve Motor provides a dependable replacement for boiler flow-control problems. It helps the system switch smoothly between heating and hot water, supporting stable performance and improved comfort.

It directly replaces part number 1.033918, helping make identification and installation more straightforward.

Delivery and Returns

Place your order before 3:00 PM for same-day dispatch. Standard delivery usually takes 2–3 working days, while next-day delivery is also available.

Returns are accepted within 30 days, provided the item remains unused and in its original packaging.

Always use a Gas Safe registered engineer to install this part safely and correctly.