Heating and Cooling› Fluid Cooler Pumps

Pierburg

Electric Water Pump

$449.99

SKU: CWA400

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Pierburg CWA400 is an electric water pump designed for engine cooling and intercooler systems. It offers a high flow rate of approximately 150 L/min at 0.85 bar and 220 L/min at 0.55 bar. The pump operates within a voltage range of 8-16 volts and features a wide temperature range for both water (-40°C – 128°C) and ambient conditions (-40°C – 140°C). Its robust construction is indicated by an IP67 protection rating.
Show original supplier description
The Pierburg CWA400 is a high-performance electric water pump engineered to provide optimal cooling for engines and intercooler systems. Building on the success of the CWA200, this pump delivers more than double the hydraulic performance while maintaining similar compact dimensions. It is designed for applications requiring significant coolant flow, capable of achieving approximately 150 L/min at 0.85 bar and up to 220 L/min at 0.55 bar. The pump features a brushless, fully canned motor for reliability and longevity. This electric water pump operates efficiently within an 8-16 volt system, drawing between 35.5A and 36.3A at maximum load, with a minimal standby current of approximately 0.2mA. It is built to withstand extreme environmental conditions, with a water temperature range of -40°C to 128°C and an ambient temperature range of -40°C to 140°C. The IP67 protection rating ensures it is dust-tight and protected against immersion in water, making it suitable for demanding automotive environments. The CWA400 is a popular choice for performance and racing vehicles, often utilized in intercooler setups. While the pump itself offers substantial cooling capacity, installation may require specific wiring connectors and mounting solutions, as suggested by available accessory kits. Early versions of the CWA400 supported PWM control, but newer models as of March 2024 are exclusively LIN versions, indicating a shift in control interface.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPierburg
Part NumberCWA400
CategoryHeating and Cooling

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy