AEM Replacement Sensor Harness for Digital Wideband Gauge (30-4110)

AEM Replacement Sensor Harness for 30-4110 Digital Wideband Gauge | 96" Plug & Play

Replace damaged wiring with the official AEM Replacement Sensor Harness for the 30-4110 Wideband Gauge. Direct-fit, plug-and-play design for Bosch LSU 4.9 sensors.

The AEM Replacement Sensor Harness (Part Number: 30-3441 / 35-3441) is a direct plug-and-play wiring replacement designed specifically for the AEM 30-4110 Digital Wideband UEGO Air/Fuel Ratio Gauge. Over time, under-hood heat, vibration, moisture, or tight routing can wear down exhaust sensor wiring. This replacement harness restores seamless communication between the gauge unit and the Bosch LSU 4.9 wideband O2 sensor.

Measuring 96 inches (8 feet) in length, it provides ample wire slack to route from the engine bay or exhaust tunnel through the firewall and into the gauge pod without tension. Features robust, OEM-style quick-connect connectors that snap directly into the back of the 52mm gauge housing and the factory Bosch LSU 4.9 sensor lead.

Best Uses

1. Engine Bay Maintenance: Replacing melted, frayed, or corroded sensor wiring caused by exhaust heat.
2. Vehicle Re-Wiring & Transplants: Essential when transferring an existing AEM 30-4110 wideband gauge system to a new project chassis or race car.
3. Custom Sensor Locations: Ideal when extending exhaust oxygen sensor bungs further downstream on custom headers or downpipes.
4. Troubleshooting AFR Signals: Corrects erratic gauge readings or signal interference stemming from broken interior copper strands.

Features

1. Direct Plug-and-Play Design: Features factory-matched connectors that plug directly into the 6-pin port of the AEM 30-4110 gauge and the Bosch 4.9 LSU sensor plug.
2. Generous 96-Inch Length: The full 8-foot loom length easily routes through complex firewalls and interior trim setups.
3. Bosch LSU 4.9 Compatibility: Engineered specifically to meet the electrical resistance requirements of Bosch 4.9 wideband sensors.
4. Heat & Fluid Resistant Sheathing: Built with protective outer sleeving to shield internal wiring against heat, oils, and underbody road debris.
5. Precision Signal Integrity: Preserves high-speed 0-5V analog voltage signals to ensure rapid, accurate real-time air/fuel ratio reporting.

Benefits

1. Restores Tuning Accuracy: Eliminates erratic AFR readings caused by signal noise, bad grounds, or worn wire insulation.
2. Simple Tool-Free Installation: Quick-locking clips eliminate the need for splicing, soldering, or crimping custom wires.
3. Saves Time and Money: Allows you to fix wiring damage without purchasing a whole new wideband gauge kit.
4. Flexible Routing Options: Extra length avoids tight bends and wire tension, lowering the risk of stress breaks near terminal pins.
5. Reliable Engine Protection: Accurate wideband data helps tuner systems prevent engine-damaging lean conditions under load.