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Wiring Specialties Pro Series Vortec Engine Wiring Harnesses
Not Yet Reviewed
Pro Series features and benefits:
* Plug-and-play installation: The engine requires only 3 wires to be connected—starter signal, ignition signal, and fuel pump
* No cores and additional
Pro Series features and benefits:
* Plug-and-play installation: The engine requires only 3 wires to be connected—starter signal, ignition signal, and fuel pump
* No cores and additional wiring required
* Integrated coil pack harnesses included
* Standalone 5-circuit Bussmann Fuse/Relay Block provided, no connections to OEM fuse boxes required
* Circuits provided: Ignition, Fuel Pump, Fan1, Fan2 and A/C relay
* Proper gauge wiring support for dual, 30 amp, PCM-controlled cooling fans
* Point-to-point digital test on every wire
* Constructed using OEM connectors and TXL Automotive wire with OEM colors
* Made with high temp TXL wire (-40C to +125C operating temperature) with adhesive shrink tubing
* ThermaShield 1,200F Aluminum/Fiberglass connector protection provided for knock sensors
* Wrapped in lightweight nylon loom with -94C to +257C operating temperature
* Integrated transmission harnesses which allow for more customization when selecting options like ECU, injector, and AFM connectors
* High-temperature braided sleeving are built to exceed OEM specs for wire temperature rating, quality, and power/ground routing
* The harnesses are designed from the ground-up for performance, optimization, and modularity, plus they're "tucked" for a clean professional appearance
* Developed in-house on actual engines to ensure a perfect fit to the engine and chassis
* Wiring Specialties use an OEM-style wiring construction process—utilizing hydraulic crimping machines that crimp wire and terminals with over 2000 lbs. of force
* All harnesses undergo a wire-to-wire electronic test after assembly, to ensure that no wire pinout mistakes were made during assembly
Wiring Harness, Pro Series, Vortec, 4L80E, 5-pin MAF Sensor, LS1 O2 Sensors, EV6 Injectors, Truck Intake, Each
Part Number: WRS-WPVRTUVT4L80
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
Wiring Harness, Pro Series, Vortec, T56, 5-pin MAF Sensor, LS1 O2 Sensors, EV6 Injectors, F-Body Intake, Each
Part Number: WRS-WPVRTUVFT56
Not Yet Reviewed
Estimated Ship Date: Mar 18, 2026 if ordered today
Estimated Ship Date: Mar 18, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Top Street Performance Standalone Fuel Injection Wiring Harnesses WH1200
Not Yet Reviewed
Estimated Ship Date: Today
Wiring Harness, Pro Series, Vortec, 4L60E, 5-pin MAF Sensor, LS1 O2 Sensors, EV6 Injectors, Truck Intake, Each
Part Number: WRS-WPVRTUVT4L60
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
Wiring Harness, Pro Series, Vortec, T56, 5-pin MAF Sensor, LS1 O2 Sensors, EV6 Injectors, Truck Intake, Each
Part Number: WRS-WPVRTUVTT56
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
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