1994–1996 LT4 Fuel Injection
LT4 Wire Harness | LT4 Wiring
Custom stand-alone LT4 harnesses built to your application. No emissions, T56 compatible, labeled in plain English. Every wire, every connector — built right the first time.
Start a BuildLT4 Wire Harness
Custom stand-alone LT4 harnesses built to your application — no-emissions configurations, T56-compatible, labeled in plain English.
This harness is set up for no emissions, two heated O2 sensors, a T56, plus pigtails for a digital speedometer and tach. It's a clean 5-wire manufactured layout meant to install without decoding a pile of factory acronyms.
One recent build went into a 1965 Corvette with late-model suspension, a T56, and C5 wheels — an example of how we size branch lengths and labels to the car, not a generic kit. Cooling-fan wiring is available as an add-on.
Built for Your Application
- No Emissions Configuration
- 2 Heated O2 Sensors
- T56 Transmission
- Digital Speedo Pigtail
- Tach Pigtail
- 5-Wire Manufactured Harness
- Cooling Fan Wiring Available
- Labeled in Plain English
All EPA Approved Wire Harnesses Come With:
- VSS Circuit
- Diagnostic Link Connector
- Correct Connector for Emissions Components
- VSS Pigtail
- Alternator
- Tach Pigtail
Ready to Build Your LT4 Harness?
Custom length. Plain English labels. T56 compatible. USA made since 1999.
Start a Build