USED:Bykski PMS5 Liquid Cooling 12V Pump - PWM Enabled Version 2 (B-PMS5-NX-V2)

Availability : In stock, In Boise ID USA Pre-Order Now Out of stock
$99.99 USD $59.99 USD SAVE 40%


This item is Pre-owned, Used, or an Open Box Product.

Used products are returns from customers that cannot be resold as new, due to damaged retail packaging, missing parts or manuals, fluid ran through them, dirty, scratches, dents as well as other cosmetic issues or damage due to install/use.

These products are heavily discounted and the condition is not evaluated. You may receive an open box item that is brand new and only the retail packaging is missing or damaged, or you may receive a used item with missing hardware, manuals, or other parts.

There are no returns or refunds on Used products. They are sold "as is" condition and cannot be returned, refunded or under warranty of any kind. This includes any new fluid that you may run through a used part. We recommend using our cleaning kits to properly flush and clean all used items!

The picture shown is the product in new condition and does not reflect the condition in any way of the item you may receive.

Description provided is the description of a new product. This product may or may not include all the parts listed below.

The Bykski PMS5 Liquid Cooling 12V Pump Motor is a high reliability, high pressure industrial pump, featuring PWM speed control. Like most other PMS5 pumps this reliability is afforded by the same unique design as the original pump, which contains only one moving part: the magnetically driven spherical impeller spins on a single ceramic bearing, thus extending the life of this pump beyond existing standards.

 The pumps data and speed control is done using the PWM 4-pin connector.  By connecting this the pump speed can be controlled via the computers similar to a CPU fan speed.  This also allows the safety feature of auto shut down based on RPM feedback if available in your BIOS.

  • Sleeved Black/Black Cables
  • Superior 12 Volts DC convenience: plugs into the computer power supply
  • The high pressure capability of the PMS5 is particularly well adapted to high-flow systems
  • Power: 12V / TDP23W
  • Voltage: 8V-24V
  • Power Connector: 4-Pin Molex
  • Speed Control/Data: 4-Pin PWM
  • Working Temp: 45C at 4000RPM
  • Max RPM: 4800
  • Maximum head: 12.4 ft (3.8 m)
  • Maximum discharge: ~396.26 GPH (1500 LPH)
  • Top Material: PMMA
  • Thread: G1/4
  • Dimensions: 80mm x 83.5mm x 84.6mm
  • Loop: Aluminum or Non-Aluminum
Included Parts
  • 1x Bykski PMS5 Liquid Cooling 12V Pump - PWM Enabled
  • 1x Top and Mounting System (Version 2)

Do not run the pump dry. It is designed as self lubricating which means the fluid that the pump is designed to push/create flow is also used to lubricate the internal pump parts and you shouldn't run the pump without fluid for any reason. Running dry creates internal friction between the ceramic bearing and bearing housing and that heat can crack or melt the bearing housing very quickly. Running pumps dry (without fluid) immediately voids the warranty and replacements/refunds will not be issued. Not responsible for any hardware damage. Use at your own risk.

There are no returns or refunds on Used products. They are sold "as is" condition and cannot be returned, refunded or under warranty of any kind. This includes any new fluid that you may run through a used part. We recommend using our cleaning kits to properly flush and clean all used items!

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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 20 days of invoice date and a 15% restocking fee will apply. If 20 days have gone by 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 expense of the customer. Customer will be responsible for paying shipping products/orders back to Shipping costs are non-refundable. 

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

If a shipped order is refused or returned undelivered there will be a mandatory 20% restocking fee, a $20.00 Return Service Fee and no refund on the shipping cost. Please be aware that refusal is significantly more expensive then using your own carrier and is NOT recommended.Please note: Refusal of packages due to duties and taxes will still result in brokerage fees and return shipping costs to us being deducted from your refund. These fees are usually higher than what paying the initial fees would have been.


Shipping Policy

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



Any and all orders over $100.00USD that are cancelled will have a 10% restock fee assessed, unless an in-store credit is issued for future purchases, then the restock fee is waived. Please double check your orders before checkout! Combining of orders/changes of orders is not permitted and cancelling and re-order will place your order to the back of the queue. We offer heavily discounted shipping rates to offset any additional items you may need. We will not refund shipping costs for any reason.