Supra MK3 Harness

Supra MK3 Engine Harness - 1JZ 2JZ 1UZ 7M

Custom high-performance wiring harness built for the Supra MK3. Perfect for standalone ECUs, injectors, sensors, and complete engine setups. Available options for engines: 1JZ, 2JZ, 7M and 1UZ. Note: I highly recommend that you opt for a relay box that I can provide.

  • Main & sub-harnesses included
  • High-quality connectors
  • Pre-installed fuse blocks
  • Compatible with aftermarket ECUs
  • 12v Fusebox with 4 or 6 relays