The HEATKILLER® D5 PWM aRGB pump combines legendary reliability with modern technology and impressive lighting. Designed for discerning water cooling enthusiasts.

Original Xylem D5 PWM – Robust, Powerful and Quiet

At the heart of the HEATKILLER D5 aRGB is an original Xylem Lowara D5 PWM pump. This pump mechanism has proven itself for decades. Its patented design ensures maximum service life, high flow rate, and whisper-quiet operation.

Thanks to the shaftless spherical motor principle, there is no bearing play and therefore no increasing operating noise. The self-adjusting wet rotor bearing is lubricated and cooled directly by the coolant. The pump starts reliably even after extended periods of inactivity. Furthermore, the efficient permanent magnet technology ensures high efficiency.

WPI Watercool Pump Interface - One cable, all functions

The Watercool Pump Interface (WPI) is the central interface for connecting HEATKILLER D5 pumps. A single cable transmits supply voltages as well as PWM, RPM, and aRGB signals. This results in compact and elegant cable management. Ideal in combination with the Passive Control for the MO-RA IV series.

The pump can also be connected to a conventional motherboard using the included cable, allowing for speed control and the operation of the aRGB LEDs.

Shiny aRGB Effects – Uniform lighting in perfection

Sixteen individually controllable aRGB LEDs, combined with genuine PLEXIGLAS GS LEDs, create impressive lighting effects. This acrylic material distributes the light homogeneously and prevents distracting hotspots. The result is elegant, even illumination that integrates seamlessly into any aRGB setup and can be customized.

Perfectly matched to HEATKILLER TUBE & MO-RA IV TANK

The pump is supplied without any accessories. A suitable pump top (e.g., HEATKILLER® D5-TOP) or a reservoir with a D5 option (e.g., MO-RA IV Tank or HEATKILLER TUBE) is required for operation. Electrical connection is conveniently made via the Watercool Pump Interface or directly via the motherboard using the included cable.


Technical specifications

• Dimensions: Diameter 65mm, length with rotor 67mm
• Design: Electronically commutated spherical motor
• Materials: Acetal, stainless steel 1.4571, PPS-GF40, EPDM O-rings, aluminum oxide, hard carbon
• Nominal voltage: 12V DC
• Power consumption: max. 30W
• Permissible voltage range: 8-24V DC
• Delivery head at 12V: 3.7m
• Maximum flow rate: 1500 l/h
• Pump medium: Water, water-glycol mixtures
• Maximum system temperature: 60°C
• System pressure: max. 1.5 bar
• Power connection: 6-pin WPI (incl. speedometer, PWM, aRGB)