Watercool, the German manufacturer renowned for its precision-engineered HEATKILLER water-cooling components and MO-RA external radiators, has introduced the new HEATKILLER D5 PWM aRGB pump. Known for its focus on build quality, performance, and long-term reliability, the brand continues to refine its ecosystem for high-end custom liquid cooling systems.
The HEATKILLER D5 PWM aRGB combines the proven reliability of the classic D5 platform with modern lighting and streamlined connectivity. Designed for custom liquid cooling enthusiasts, the latest addition to the HEATKILLER range blends performance, durability, and aesthetic refinement in a single unit.
At its core is an original Xylem Lowara D5 PWM pump mechanism, a design that has earned a strong reputation over decades of use in high-performance PC water cooling loops. With integrated aRGB lighting and the brands Watercool Pump Interface, the HEATKILLER D5 PWM aRGB aims to deliver both clean installation and premium visual appeal.
Original Xylem Lowara D5 PWM Core
Powered by an original Xylem Lowara D5 PWM pump
Patented shaftless spherical motor design for reduced wear
Self-adjusting wet rotor bearing lubricated and cooled by the coolant
High delivery rate with low operating noise
Reliable start-up even after extended downtime
Permanent magnet technology for improved efficiency
The spherical motor principle eliminates traditional bearing play, helping to maintain low noise levels over time. Coolant directly lubricates and cools the rotor bearing, supporting longevity and consistent performance in demanding loops.
WPI Watercool Pump Interface One Cable Solution
6-pin WPI connection carrying power, PWM, RPM, and aRGB signals
Single-cable design for simplified routing and cleaner builds
Compatible with conventional motherboards via included cable
Optional WPI cable available for passive control setups
The Watercool Pump Interface consolidates all key signals into one connection, reducing cable clutter and simplifying integration. Users can alternatively connect the pump directly to a motherboard using the supplied 40cm cable, enabling PWM regulation and aRGB control through standard headers.
Uniform aRGB Illumination
16 individually addressable aRGB LEDs
Original PLEXIGLAS GS LED for even light diffusion
Homogeneous illumination without visible hotspots
Fully customisable lighting effects
The lighting system is engineered to deliver smooth, uniform illumination. The use of PLEXIGLAS GS LED acrylic ensures balanced diffusion, allowing the pump to integrate seamlessly into synchronised aRGB ecosystems.
Designed for HEATKILLER TUBE and MO-RA IV TANK
The HEATKILLER D5 PWM aRGB is supplied without a pump top or reservoir. For operation, it requires a compatible attachment such as a HEATKILLER D5-TOP or a reservoir with D5 support, including options like the HEATKILLER TUBE or MO-RA IV Tank. This modular approach allows builders to tailor their loop configuration according to their specific requirements.
Key Specifications
Dimensions: 65mm diameter, 67mm length with rotor
Motor design: Electronically commutated spherical motor
Materials: Stainless steel 1.4571, PPS-GF40, EPDM O-rings, aluminium oxide, hard carbon
Rated voltage: 12V DC
Voltage range: 824V DC
Power consumption: Up to 30W
Pressure head at 12V: 3.7m
Maximum flow rate: 1500 l/h
Maximum system temperature: 60 degrees C
Acceptable media: Water and water-glycol mixtures
Power connection: 6-pin WPI including RPM, PWM, and aRGB
Scope of Delivery
1 x HEATKILLER D5 PWM aRGB
1 x 40cm connection cable for motherboard, aRGB, and SATA
Pricing and Availability
The HEATKILLER D5 PWM aRGB is available now via the official product page at Watercool.de, with a suggested retail price of 109.95 EUR including VAT. Availability in other regions may vary.
