The Vaillant 140352 diverter valve service kit is a replacement service kit for the diverter valve in Vaillant turboMAX VUW fan-assisted combi boilers. The diverter valve directs water between the central heating and hot water circuits.
As pictured, the kit includes a diaphragm, spindle with spring, microswitch, O-rings and washers, a retaining clip, screws and a sachet of O-ring grease.
If you are unsure whether this kit fits your boiler, please contact us with your boiler model before ordering so we can confirm compatibility.
We recommend this part is fitted by a Gas Safe Registered Engineer.
Product Specifications
| Specification |
Details |
| Brand |
Vaillant |
| Part Number |
140352 |
| Type |
Diverter Valve Service Kit |
| Suitable For |
turboMAX VUW (fan-assisted) boilers |
Delivery & Returns
Delivery: Orders placed before 2pm (Mon–Fri) are usually dispatched the same working day via our trade courier network. Standard UK mainland delivery typically takes 1–3 working days, with next-day delivery available at checkout for most postcodes. Delivery charges are calculated at checkout based on order size and destination.
Returns: Unused items in their original packaging can be returned within 30 days of delivery for a full refund or exchange. Faulty or incorrectly supplied items are covered under warranty and will be replaced or refunded at no extra cost. Some made-to-order or special-order items may not be eligible for return — please contact us before ordering if you're unsure.
For delivery queries or to arrange a return, please contact our team.
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