
Best selling Water cooling pumps
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Alphacool Computer cooling system part/accessories
After completing the water circuit, the final step is usually filling the system. Occasionally, it happens that some liquid leaks out. This is often due to a hard tube or hose not being seated correctly or a connection not being fully tightened. With the Alphacool Leak Testing Tool, you can test the tightness of your water circuit even before filling the system.
The Leak Testing Tool consists of a hand pump, a pressure gauge, an 11/8 mm hose, which has a connection with a G1/4" thread at its end. Everything is connected via a T-piece. The hose is 40 cm long and features a kink protection spring.
You connect the Alphacool Leak Testing Tool to a free G1/4" connection in the system and operate the hand pump until the desired pressure is reached. Please note that there may be different maximum specifications depending on the manufacturer. You should then wait about 15 to 20 minutes. If the pressure has not dropped during this time, the water circuit is tight.

2. Corsair Icue Link Xd6 RGB Elite LCD
For DIY enthusiasts looking for high coolant flow, a slim design, RGB lighting and an optimised connection to the iCUE LINK hub.
Includes:
- Customisable 480x480 LCD screen
- 22 individually addressable RGB LEDs
- FlowDrive Max PWM pump motor
- Integrated coolant temperature sensor
- Effortless iCUE LINK connectivity.

3. Thermaltake Pacific Core P5
The Pacific Core P5 DP-D5 Plus is a combination of a liquid cooling distribution plate and a D5 pump for the Core P5 chassis. This simplifies the tubing structure of water cooling with hard pipes and offers both beginners and experienced modders a smarter way to showcase their water-cooled builds. The Thermaltake Core P5 DP-D5 Plus is a distribution plate with a pre-installed D5 pump. The distribution plate has been designed for our Core P5 chassis, allowing you to connect it directly to the chassis. Additionally, it can be synchronized with our TT RGB PLUS Ecosystem.

4. EKWB EK-Loop D5 G3
The EK-Loop D5 G3 PWM motor is a true high-performance D5 water pump with PWM speed control via the motherboard or a special fan/pump controller. Compared to the previous generation G2, the G3 has elegant black cables and a SATA power connector. The EK-Loop D5 G3 PWM motor is an improved version of the world-famous, original Xylem D5 PWM pump, which has an improved PWM control driver.

5. Alphacool DC-LT 2
The Alphacool DC-LT 2 2600rpm Ceramic is a pump designed for use in computer water cooling systems. The previous model was already regarded as a quiet little marvel. Now, thanks to accumulated experience, Alphacool has significantly improved this product. Smaller to medium-sized water circuits can be operated with this pump practically silently. Alphacool is already successfully using this pump in the GPU-AiO Eiswolf 2, which has been rated as inaudible in various independent tests.
There are several points to mention: The true 3-phase sinus control of the pump contributes to its extreme smoothness. The impeller is suspended on a ceramic shaft supported by two magnets. The ceramic shaft is manufactured with high precision, and the impeller is perfectly balanced. All these details ensure that the Alphacool DC-LT 2 2600rpm Ceramic - 12V DC (Sinus PCB) pump operates virtually noiselessly.
The control of the pump, the mechanics, and thus the pump itself are highly efficient. The power consumption is significantly lower compared to other models while providing the same or even higher performance output. It has a wide control range and reliably starts running from a power supply of just 7V.

6. Aqua Computer -Pump mechanism with tacho signal
The D5 pump mechanism represents a powerful pump motor that still needs to be completed with a suitable housing to form a complete pump. The electronically commutated ball motor operates extremely quietly and has a long lifespan. The pump's performance can be adjusted via a rotary control, or alternatively, the pump can be regulated through the input voltage. A tachometer signal is also available as a special feature for monitoring the pump's function!.

7. Corsair Icue Link Xd6 RGB Elite
The iCUE Link XD6 RGB Elite in black from Corsair is a state-of-the-art solution for water cooling in high-performance computer systems. This set combines a powerful pump with a reservoir that has been specially developed for the requirements of gaming and high-performance PCs. The integrated iCUE technology enables precise control and monitoring of the cooling performance, while the RGB lighting provides an appealing look. The pump is approved for use with water and water/glycol mixtures, which enables flexible adaptation to different coolants. With its robust design and high-quality materials, this set offers reliable and efficient cooling for demanding applications.
- Integrated temperature monitoring for precise cooling performance
- Compatible with water and water/glycol mixtures
- RGB lighting for customisation
- Robust construction for long-term reliability.

8. EKWB EK-Loop DDC 4.1 PWM motor
The EK-Loop DDC 4.1 PWM is a pump motor designed for water cooling circuits in computers. It is a powerful and efficient pump that offers high flow rates and customization options.
The "PWM" in its name stands for Pulse Width Modulation, which means that the motor speed can be controlled and adjusted via the motherboard, increasing flexibility in cooling optimization. The EK-Loop DDC 4.1 PWM motor is known for its reliability and is often used in custom water cooling systems to ensure effective heat dissipation from processors and other components.
Technical details:
- Color: Black
- Material: Metal, Plastic
- Power: 6 W
- Flow rate: 500 L/h
- Head height: 2.6 m
- Compatibility: All DDC compatible products
Note: Use only with clear, transparent cooling liquids. Particles and additives in pastel liquids can clog and permanently damage water cooling products such as radiators, pumps, coolers, and hoses. This may also void the manufacturer's warranty.

9. Alphacool Core Distro Plate 240 Right with VPP Pump
The Core Distro Plate from Alphacool with VPP Apex pump is an essential component for any custom water cooling setup. It significantly simplifies the construction, planning, and maintenance of complex water circuits, and thanks to the pre-installed VPP Apex, no additional pump installation is required.
Core Design
A core element of Alphacool's Core Design series is the chrome-plated G1/4" connections made of brass. In the Core Distro Plate, the connections are recessed rather than being screwed into a thread as is customary. This design choice helps Alphacool avoid potential leakage issues caused by cracking from the direct screwing of the connections into the acrylic. The connections are two-part, equipped with an O-ring, and lock against each other during installation in the acrylic. This not only ensures absolute tightness of each individual connection but also allows for the clear and functional aesthetic of the Alphacool Core Design series.
Easy Installation
With the help of the included components...

10. DFRobot Water pump JT-280AT 280-600L/h 6-12V
With this submersible pump, you can water plants, build a fountain or waterfall, and even pump water in your aquarium. The pump operates very quietly with a noise level of less than 40 dB. It features four suction cups on the underside for easy attachment to a smooth surface.
Info: This pump is only intended for use underwater and must not run dry. (Brown/red-positive; blue/black-negative)
Technical details:
- Operating voltage: 6-18V DC
- Current consumption: 65mA-500mA
- Output: 0.8-18W
- Flow rate: 280-600L/h
- Maximum delivery head: 60-420cm
- Degree of protection: IP68
- Length of connection cable: 1m
- Water outlet diameter: 10mm
- Length of connection hose: 1m
- Dimension: 55 x 45 x 42mm
- Weight: 200g
Scope of delivery:
- 1x water pump JT-280AT 280-600L/h 6-12V
- 1x 1m hose.
