# Pump top Watercool HEATKILLER DDC Pumpenaufsatz X2 by Watercool (MPN 31016)

**URL:** https://aio.lv/en/product--watercool-31016--11995973
**Data updated:** 2026-03-11 18:28 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** Watercool
**Manufacturer code:** 31016
**EAN:** 4251312604950
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 79.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 65.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--watercool-31016--11995973

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Watercool HEATKILLER DDC Pumpenaufsatz X2 is a pump top accessory designed for DDC-series water cooling pumps. Manufactured by Watercool, this pumpenaufsatz (pump top) enables secure mounting and fluid routing for custom PC liquid cooling loops. Supplied with standard fittings interfaces, it is intended for integration with DDC pumps to improve connection reliability and simplify tube attachment in desktop cooling systems.

## Long description

Watercool HEATKILLER DDC Pumpenaufsatz X2 by Watercool is a pump top accessory engineered for DDC-series water cooling pumps. It provides a standardized interface for fittings and tubing, enabling a compact and reliable connection between the pump and the rest of a custom PC liquid cooling loop. The design focuses on straightforward integration with common DDC pump housings and on organizing inlet and outlet routing to reduce stress on fittings and hoses.
Advantages
The pump top offers secure mechanical mounting and standardized fitting interfaces for easier installation and replacement. Its form factor helps minimize hose bending and supports tidy loop layouts. Materials and finish are chosen to be compatible with typical cooling fluids and to maintain leak-resistant connections when used with the recommended fittings. The accessory simplifies the transition from pump to tubing, which can reduce installation time and improve system reliability.
Suitable for
Custom desktop PC liquid cooling loops using DDC-series pumps
Systems where compact pump mounting and organized hose routing are required
Upgrades or replacements of pump tops to improve fitting reliability
Key specifications
Compatibility: DDC-series water cooling pumps
Fitting interface: standard threaded ports for common compression fittings or barbed adapters
Material: corrosion-resistant materials suitable for cooling fluids (metal and/or engineered plastics as manufactured)
Mounting: designed for secure attachment to DDC pump housing with appropriate fasteners
Flow orientation: defined inlet and outlet ports to simplify tubing routing
How to use
Mount the pump top onto a compatible DDC pump housing following the pump manufacturer's instructions and using the supplied or recommended fasteners. Attach fittings that match the pump top's threaded ports, tighten to the specified torque to avoid leaks, and connect tubing according to your loop layout, observing correct flow direction. After assembly, fill the loop with the appropriate coolant and perform a leak test at low pump speed before normal operation.
Usage recommendations
Use fittings and tubing compatible with the pump top's threading and recommended materials. Tighten fittings evenly and check for leaks after initial fill; avoid over-tightening metal fittings onto plastic threads. Periodically inspect connections during maintenance and use coolant formulations recommended for PC liquid cooling to prevent corrosion and deposits.

## FAQ

### How much does the Watercool HEATKILLER DDC Pumpenaufsatz X2 cost, and is it available for purchase?

The price is 79.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Watercool HEATKILLER DDC Pumpenaufsatz X2 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Watercool products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Watercool service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11995973/67451192_large.webp