The Infiniti QX70 engine wiring harness is the bundle of wires and connectors that links the engine to the sensors, the ignition, the fuel injectors, and the engine control unit. It carries both power and data, so the engine can run correctly and report to the computer. This is a used harness inspected for end to end continuity, connector pin condition, insulation flexibility, and loom integrity, with no melted insulation or rodent damage.
If you have chased melted wires, broken connectors, rodent damage, or repeated electrical faults in the engine bay, a sound harness clears those headaches. The QX70 is the renamed FX series, so confirm your exact year, engine, and options, ideally by VIN or OEM part number.
| Item | Details |
|---|---|
| Continuity | End to end, no open or shorted circuits. |
| Pins | Connector pins straight, seated, and clean. |
| Loom | Insulation flexible, loom intact, no melt or chew. |
Exact model year of your QX70 (2014 to 2017)
Your engine and options, since pinouts vary
Your VIN or the OEM part number from the old harness
That you need the engine harness, not another loom
| Item | Details |
|---|---|
| INCLUDED | The engine wiring harness as pictured for the build you confirm. |
| NOT INCLUDED | Modules, sensors, and other looms, unless ordered. |
| Tools You Need | Standard hand tools and a qualified technician so every connector lands in the right place. |
This Infiniti QX70 engine wiring harness is offered for the following:
| Vehicle | Compatibility |
|---|---|
| Infiniti QX70, 2014 to 2017 | Engine harness, by year and build |
| Renamed FX series, 3.7 V6 | Confirm year, engine, and VIN |
This engine harness is offered for the Infiniti QX70 built from 2014 to 2017, the renamed FX series, mostly with the 3.7 liter V6. Because options change the pinout, confirm your exact year, engine, and VIN or part number at order. We disclose the donor details before shipping.
Not sure which harness your QX70 needs? Call (240) 301-0095 with your VIN or the part number from your old harness. Our team confirms an exact match and discloses the donor build before your order ships.
Quality control for this part includes:
End to end continuity verified on the circuits
Connector pins checked for bends, seating, and corrosion
Insulation checked for flexibility, no cracking
Loom checked, with no melted insulation or rodent damage
Donor year documented before packaging
This is a used harness inspected the way wiring should be checked: continuity, pin condition, insulation flexibility, and loom integrity. Replacing an engine harness is a detailed electrical job, so we recommend a qualified technician for correct routing and connection.
| Application | 2014 to 2017 Infiniti QX70 |
|---|---|
| Part Type | Engine wiring harness (loom) |
| Material | heat-resistant insulation | Copper wiring |
| Connectors | Corrosion resistant OEM style |
| Voltage | 12V |
| Temperature | Works from minus 40 F to 221 F (minus 40 C to 105 C) |
| Weight | 2 to 4 lbs |
| Engine Note | Renamed FX series | mainly 3.7 V6 |
| Fitment Note | Option specific | confirm by VIN or part number |
| Shipping | Free to all 50 states | no core charge |
| Warranty | 15 day replacement warranty from delivery |
| Condition | Used | inspected before shipping |
| Sku | vaz414 |
Contact (240) 301-0095 within 15 days of delivery.
