Description

Vaillant 0020221617 Pump – Fits Ecotec Plus, Exclusive Models (Refurbished/Brand New)

The Vaillant ecoTEC Exclusive 835 pump 0020221617 keeps water moving through your boiler, so your heating and hot water can work properly. However, when the pump wears out, flow drops and performance suffers. Therefore, replacing the pump helps restore steady circulation and reliable daily use. You can choose either a brand new or refurbished unit, so you can match the repair to your budget and your boiler’s needs.

Compatible Boilers

This part is compatible with the following models:

ecoTEC Exclusive Combi:

• 835 VUW 356/5-7 – GC No. 47-044-66
  843 VUW 436/5-7 – GC No. 47-044-67

ecoTEC Exclusive System:

• 627 VU 256/5-7 – GC No. 41-694-02

ecoTEC Plus Combi:

• 838 VUW 286/5-5 R6 2017 Onwards – GC No. 47-044-86
  838 VUW 386/5-5 R4 2015 Onwards – GC No. 47-044-60

ecoTEC Plus Regular:

• 637 VU 376/5-5 A R4 2015 Onwards – GC No. 41-044-85

ecoTEC Plus Storage Combi:

• 938 VUI 286/5-5 R6 2017 Onwards – GC No. 47-044-87
  938 VUI 386/5-5 R4 2015 Onwards – GC No. 47-044-61

If you’re looking for any other different Vaillant Pump, follow the link provided.

Why Choose This Product?

This replacement pump helps restore proper circulation and reliable boiler performance without unnecessary system changes. In addition, both brand new and refurbished options give you flexibility based on budget and repair needs. Each refurbished unit should be fully tested before dispatch for added peace of mind.

Delivery and Return

Order before 1 PM for same-day dispatch with standard and next-day delivery options available. Returns are accepted within 30 days if the part remains unused and in its original packaging. However, always use a Gas Safe registered engineer for installation and warranty support.

Frequently Asked Questions 

1. Which boilers are compatible with the Vaillant 0020221617 Pump?

The pump fits a wide range of Vaillant Ecotec Plus and Exclusive boilers, including Ecotec Exclusive 835, 843, Ecotec Plus 637, 838, 938, and Exclusive 627. Always verify your boiler’s manufacturer part number before ordering.

2. What is the difference between the refurbished and brand new pump head?

The refurbished pump is a fully tested unit restored to optimal working condition, while the brand new pump head is a completely unused unit. Both ensure reliable operation and a 12-month warranty.

3. What warranty is included?

Both the refurbished and new pump head come with a 12-month warranty covering performance and reliability.

4. How quickly are orders dispatched?

Orders placed by 1 pm (Monday–Friday) are dispatched the same day. Orders placed after 1 pm or on weekends are shipped the next working day. Weekend delivery can be selected at checkout.

5. What is the returns process for this pump?

All pumps can be returned within 30 days. Items must be returned in original packaging. Return shipping costs are the responsibility of the buyer. Contact customer service before returning items to ensure a smooth process.