Pierburg CWA400 Trunk Tank Harness with Fuse & Relay
Power your CWA400 water pump reliably and safely with Dedicated Motorsports premium trunk tank harness.
This high quality wiring harness is specifically designed to run the Pierburg CWA400 intercooler pump at full speed and voltage, ensuring maximum cooling efficiency for your setup. Built with TXL 10-gauge wire, it includes a properly rated maxi fuse, relay, and premium terminals for long-lasting durability and optimal electrical performance.
• Ideal for trunk-mounted intercooler tanks
• Designed for full voltage operation of the CWA400 pump
• Includes relay to address Pierburg’s 2024 software change (pump remains on after 12V is removed)
• Clean, simple install for street and race applications
Note: As of early 2024, Pierburg revised the CWA400’s programming to continue operating even after switched 12V is removed—this harness solves that issue with an integrated relay for proper shut-off.
