ETL INDUSTRIES O2 Oxygen Sensor Extension Harness – 12" 4-Pin Square Connector for 2011-2017 Ford Mustang GT & V6 (Rear)

🚚 Shipping just $3.99 — 3-5 business days delivery.

Extend your rear oxygen sensor with this 12" 4-pin extension harness.

Designed specifically for 2011-2017 Ford Mustang GT (5.0L V8) and V6 (3.7L) models. Square 4-pin connector. Rear O2 sensors only.

Compatibility:
✅ 2011-2017 Ford Mustang GT (5.0L V8)
✅ 2011-2017 Ford Mustang V6 (3.7L)

⚠️ Important Fitment Check:
- This harness is designed for REAR (downstream) oxygen sensors only
- Uses 4-pin square connector
- Will NOT fit front (upstream) sensors
- Does NOT fit EcoBoost or Shelby models
- Please verify your factory O2 sensor plug matches before ordering

Specs:
| Specification | Detail |
|---------------|--------|
| Length | 12 inches |
| Pin Count | 4-Pin |
| Connector Type | Square |
| Position | Rear (Downstream) Only |
| Quantity | 2 pieces |
| Material | High-temperature resistant wiring |

What's Included:
- 2 x Rear Oxygen Sensor Extension Harnesses

Why Choose ETL INDUSTRIES:
✅ OEM-quality connectors — direct plug-and-play
✅ 100% tested during production
✅ 24-hour customer support

Not sure if it fits? Message us with your Mustang year/model and a photo of your O2 sensor plug.

Backed by ETL INDUSTRIES:
- ⏱️ 24-hour customer service
- 📦 1-year warranty