Toyota 1JZ Engine Wiring Harness

OEM Engine Wire Harness Replacement for 1JZ-GTE / 1JZ-GE (VVTi & Non-VVTi)

Product Overview

The Toyota 1JZ Engine Wiring Harness is a high-performance OEM replacement designed for 1JZ-GTE and 1JZ-GE engines, supporting both VVTi and Non-VVTi versions.
Engineered for reliability and precise electrical performance, this harness ensures stable signal transmission between engine sensors, actuators, and the ECU, making it ideal for OEM restoration, engine swaps, performance upgrades, and motorsport applications.

Compatible with both factory ECUs and aftermarket systems such as Link, FuelTech, Motec, AEM, and Haltech, this wiring harness provides a clean, plug-and-play solution for professional tuners and automotive enthusiasts.

Key Features & Selling Points

• Exact OEM Fitment
  Manufactured to OEM specifications for Toyota 1JZ engines, ensuring correct connector placement, wire length, and pin configuration.

• Supports VVTi & Non-VVTi Engines
  Designed to work seamlessly with 1JZ-GTE and 1JZ-GE, covering multiple engine variants and production years.

• High-Performance Wiring Materials
  Uses automotive-grade copper conductors, heat-resistant insulation, and reinforced loom protection for durability under high temperatures and vibration.

• Aftermarket ECU Compatibility
  Suitable for performance and standalone ECUs including Link, FuelTech, Motec, AEM, and Haltech, making it ideal for tuning and racing setups.

• Reliable Signal Transmission
  Precision crimping and shielding reduce electrical interference, helping prevent misfires, sensor errors, and unstable engine operation.

• Plug-and-Play Installation
  No cutting or rewiring required, saving installation time and reducing the risk of wiring mistakes.

Applications

• Toyota 1JZ-GTE / 1JZ-GE engine rebuilds and restorations

• OEM wiring harness replacement for aging or damaged looms

• Performance tuning and ECU upgrades

• Engine swaps and motorsport projects

• Drift, track, and street performance vehicles

Why Choose Us

• OEM & Custom Wiring Harness Manufacturer
  We specialize in automotive engine wiring harnesses, offering both OEM replacements and customized solutions.

• Strict Quality Control
  Every harness is electrically tested to ensure continuity, correct pinout, and long-term reliability.

• Customization Support Available
  Custom pinouts, ECU connectors, and harness layouts are available to meet specific project requirements.

• Global Supply Experience
  Trusted by distributors, workshops, and performance tuners worldwide.

• Cost-Effective OEM Alternative
  High quality at competitive pricing without compromising performance or safety.

Conclusion

The Toyota 1JZ Engine Wiring Harness OEM Replacement is a dependable and high-performance solution for anyone working with 1JZ-GTE or 1JZ-GE engines. Whether for OEM restoration or high-power tuning with aftermarket ECUs, this harness delivers precision, durability, and confidence for every build.