Relay Holder Kit

The FUELTECH USA Relay Holder Kit (Part No. 5011100383) is a compact plastic relay mounting solution designed for automotive engine management and fuel injection systems. This single relay holder comes complete with crimp terminals pre-installed, eliminating the need for separate terminal sourcing and simplifying installation in custom fuel system builds, performance tuning projects, and engine control upgrades.

At just 0.05 lbs and measuring 1.5 x 1.5 x 3.5 inches, this relay holder provides a compact footprint ideal for tight engine bay installations where space constraints are common. The black plastic construction resists corrosion and UV degradation, critical for under-hood environments exposed to heat cycles and moisture. The included crimp terminals ensure proper electrical connections without requiring additional connectors or crimping tools, reducing assembly time and improving reliability in fuel pump circuits, injector banks, and auxiliary ignition systems.

This relay holder kit serves technicians and builders working on fuel injection upgrades, engine swaps, and custom ECU installations where relay organization and secure mounting are essential. FUELTECH USA products are widely recognized in the performance fuel system community for supporting turbo builds, supercharger installations, and standalone engine management setups. The pre-assembled design with integral crimp terminals reduces potential connection failures that can occur with aftermarket relay housings lacking proper terminal integration.

Whether integrating a new fuel system controller, wiring auxiliary fuel pumps, or organizing relay circuits in a modified engine bay, a properly mounted and terminated relay holder ensures stable voltage delivery and eliminates loose connections that degrade ignition timing or fuel delivery precision.