Description

The M12_P2 3Relay Output Preferred Harness is a professional-grade output harness designed with three built-in relays, allowing for direct control of essential components such as fuel pumps, fans, ignition coils, or shift solenoids. As part of Spitronics’ Preferred Level 1 output range, it ensures clean power distribution and reduces external relay wiring.

This harness simplifies installation by including pre-wired, fused relay circuits and labeled output wires—making it a preferred choice for users who want a tidy, reliable, and powerful output setup. It is compatible with Mercury, Mercury2, and Mercury3 ECUs, supporting a wide variety of engine and transmission configurations.