BMW & Universal Spool Quad Fuel Pump Activation Harness & Relay Box

The Spool quad fuel pump activation harness with relay box powers up to four Walbro auxiliary fuel pumps from a single ground trigger.

Why you need it

Wiring several high-current fuel pumps by hand takes hours and means sourcing the right high-amp connectors. This plug-and-play harness needs no custom wiring or soldering, gives the pumps steady power when they are called on, and saves over five hours of wiring time on a big fuel system build.

Fitment

Universal. Designed mainly for BMW F and G chassis, and works on almost any application with a ground-trigger fuel pump setup.

Features

• Supports up to four Walbro auxiliary fuel pumps
• Ground trigger activation
• Integrated relay box
• Plug and play, no custom wiring or soldering

Good to know

Requires a controller or switch that provides a ground trigger. Fuel pumps are not included.