MaxxECU Motorsport Grade Wiring Harnesses

Supported ECU Platform
This wiring harness range is designed specifically for MaxxECU systems and is built to the same motorsport ETFE M22759/16 standard used across all supported ECUs.

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Our MaxxECU Motorsport Grade ETFE MIL-W-22759/16 wiring harnesses are purpose-built for the entire MaxxECU series ECUs & PDM20 PDM used in motorsport, performance street builds, and professional engine swaps.

Each loom is hand-built using race-grade M22759/16 ETFE wire and designed specifically for MaxxECU's pinouts — not universal or generic harnesses.

Select your MaxxECU model below to find a wiring harness engineered for heat resistance, signal integrity, and long-term reliability.