Bykski CP-D5PB-X (Lowara) D5 Liquid Cooling 12V Manual Speed Controlled Pump Motor

Availability : In stock, In Boise ID USA Pre-Order Now Out of stock
$149.99 USD
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Experience superior cooling performance and reliability with the Bykski CP-D5PB-X (Lowara) D5 Liquid Cooling Manual Speed Controlled Pump Motor. Designed for enthusiasts and professionals alike, this industrial-grade pump integrates seamlessly into your custom cooling system.

  • Superior 12 Volts DC convenience: plugs into the computer power supply
  • The high pressure capability of the D5 is particularly well adapted to high-flow systems
  • Manual Speed Control for optimized performance via rear dial
  • Durable spherical impeller with a single ceramic bearing
  • Power: 12V DC / TDP23W
  • Voltage: 8-24V DC 1.2A
  • Power Connector: 4-Pin Molex
  • Working Temp: 45C at 4000RPM
  • RPM:1800-4800
  • Maximum head: 4m 800L/H
  • Maximum discharge: 211.3 GPH (800 LPH)
  • Performance will vary based on the housing used
Included Parts
  • 1x Bykski CP-D5PB-X (Lowara) D5 Liquid Cooling Manual Speed Controlled Pump Motor
Pump Specific Warnings:

Use of caustic and/or abrasive coolant will void your warranty (see warranty section) and may cause your pump to fail. This pump comes stock without any housing, allowing you to integrate any of your favorite pump tops and accessories. Consequently, the pump cannot be used as a standalone unit. Do not run the pump dry.

The D5 and DDC range of pumps are designed to be self-lubricating, meaning the fluid that the pump is designed to move is also used to lubricate its internal parts. Therefore, you should not run the pumps without fluid for any reason. Running these pumps dry creates internal friction between the ceramic bearing and bearing housing, and that heat can quickly crack or melt the bearing housing.

Running D5 pumps dry (without fluid) immediately voids the warranty. Replacements will not be provided under these conditions.

It is easy for us to determine if your pump has been "run dry" or without fluid:

  1. Visual scratches along the inside of the housing. These are created when the bearing housing melts and the impeller spins off-center.
  2. The bearing housing has stress cracks or is melted, resulting from heat created when the pump is run dry.
  3. The impeller sits too low in the housing, usually indicating that the ceramic bearing is falling through the normal housing location.

Warning: This product is designed for self-installation. The manufacturer is not liable for any damages resulting from misuse, including, but not limited to, improper installation or the use of incompatible hardware or fluids. By using this product, you accept all related risks.

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Return/Exchange/Shipping Policy

Return Policy for New Products:

For international customers please reference this page for duties/tax information.

Products returned for credit must be received within 30 days of the invoice, and a 15% restocking fee will apply. If your order was sent using "free shipping," the amount for outbound shipping will be deducted from your refund. If 30 days have passed since your purchase, unfortunately, we can’t offer you a refund or exchange.

All returned items must be in like new condition with all related parts including screws, manuals, etc. If you have lost, thrown away, scratched or opened sealed boxes or bags – a higher restock fee may apply upwards of 50%.

If a customer is misleading about the defect and evidence of incorrect install/use or tampering has occurred, a higher restock fee may be assessed or the return may be completely denied. A qualified technician will test each returned product for defects. will not assess a restocking fee for defective products.

Sale items  or Pre-owned (if applicable)
Only regular priced new items may be refunded or returned, unfortunately sale items and Used/Pre-owned/Open box items cannot be refunded.

Returns will not be accepted without an RMA number provided from 

Return Shipping

Customers are responsible for ALL return shipping charges on merchandise for any reason. Unless otherwise noted, shipping on products and returns is non-refundable, and returning a product comes at the customer's expense. The customer will be responsible for paying for shipping products/orders back to For no reason, do we refund the outbound shipping cost. If your order was sent using "free shipping," the amount for outbound shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Please ship using a carrier that provides a tracking number, insurance and proof of delivery. is not responsible for return items lost by the carrier. Valid proof of delivery must include the receipt signature of an authorized employee.

Erroneous Shipments
In the event an incorrect item is shipped in your order, the correct item / replacement will be shipped using the same method as the original order.

Damaged Items
:  All packages are fully insured at no additional charge.

If you receive a damaged package, you must notify us within 48 hours of receipt. Sending back damaged merchandise voids the shipping insurance and no credit will be given. Damaged packages must be held for five days with original packaging for carrier inspection.

Shipment Refusal

Shipping Policy

Selecting overnight shipping method will not ensure that your order ships same day and is not guaranteed.


Once an order is placed on our e-commerce website, it cannot be canceled/changed or held. This is because our fully automated systems immediately start processing the order, which cannot be stopped or reversed. Therefore, we advise customers to double-check their orders before making a purchase.

Additionally, we would like to emphasize that our e-commerce website ships 98.5% of orders on the same day they are placed by 2:00 pm MST. Allowing cancellations after an order is placed would significantly slow down our shipping process and potentially affect the delivery times for other customers.

We understand that it can be frustrating to be unable to cancel an order, but we ask for your understanding in this matter. By adhering to our cancellation policy, we can ensure that our automated systems and shipping processes continue running smoothly, allowing us to provide fast and efficient service to all our customers.

We understand that sometimes mistakes can happen, and customers may accidentally order the wrong item or change their minds about a purchase. In such cases, we suggest that customers consider our return policy instead.


Most of the time pre-ordered items are newly released products and may be subject to price increases and feature changes as more information is provided to us the reseller. 

The item's packaging (dimensions, weight, additional handling, shipping rate changes), delivery schedule and included options are subject to change and therefore the original estimated price listed and delivery date may change once the final information is received. As we get more information about the packaging, pricing, and inclusions, the final features/pricing may change before fulfillment. 

In the event of a price change or feature change the customer will be notified immediately and will be given the option to cancel the order, change the order or pay additional funds to cover the increases.