ETL INDUSTRIES 36" 4-Pin O2 Sensor Extension Harness for Chevrolet Corvette 2008-2015 & Camaro – 2PCS

Extend the reach of your oxygen sensor wiring without cutting or splicing the factory harness. This ETL Industries kit includes two 36-inch O2 sensor extension harnesses with matching 4-pin trapezoidal connectors for compatible Chevrolet Corvette and Camaro applications.

Designed for exhaust modifications, long-tube header installations and other applications where the original oxygen sensor wiring does not provide enough reach.

Key Features

• Two 36-inch oxygen sensor extension harnesses

• 4-pin trapezoidal male-to-female connectors

• Plug-and-play installation

• No wire cutting, splicing or permanent harness modification

• Protective wire loom for under-hood use

• Suitable for compatible header and exhaust installations

• Each harness is inspected before shipment

Vehicle Fitment

Make	Model	Years	Connector	Sensor Position
Chevrolet	Corvette	2008-2015	4-Pin Trapezoidal4-Pin Trapezoidal	Verify before ordering
Chevrolet	Camaro	2008-2015	[4-Pin Trapezoidal4-Pin Trapezoidal	Verify before ordering

Important: Connector shape may vary by model year, engine and oxygen-sensor position. Compare the connector shown in the product photos with the connector on your vehicle before ordering.

This product uses a 4-pin trapezoidal connector. It will not fit square, round, flat, 5-pin, 6-pin or 8-pin connectors.

Specifications

Specification	Details
Brand	ETL Industries
Product type	O2 oxygen sensor extension harness
Extension length	36 inches per harness
Connector	4-pin trapezoidal
Connection type	Male-to-female
Installation	Plug-and-play
Wire modification required	No
Quantity	2 harnesses
Color	Black
Material	Copper wire, insulated terminals and plastic connectors
Manufacturer part number	ETL-W3436
Warranty	1 Year

Package Contents

• 2 × 36-inch 4-pin O2 sensor extension harnesses

Oxygen sensors are not included.

Installation

1. Allow the exhaust system to cool completely.

2. Disconnect the vehicle battery according to the vehicle service procedure.

3. Locate the correct oxygen sensor connector.

4. Compare the vehicle connector with the connector shown in the product photos.

5. Connect the extension harness between the vehicle wiring harness and oxygen sensor.

6. Route the wiring away from exhaust pipes, sharp edges and moving components.

7. Secure the harness with appropriate heat-resistant ties or retainers.

8. Confirm that the wiring is not stretched before operating the vehicle.

Professional installation is recommended if you are unsure about connector compatibility or wiring location.

Before You Order

Please verify all four items:

• Your vehicle’s exact year, model and engine

• Front or rear oxygen-sensor position

• 4-pin connector configuration

• Trapezoidal connector shape shown in the photos

Matching the number of pins alone does not guarantee compatibility.

Frequently Asked Questions

Is this an oxygen sensor?

No. This product is an extension harness for an existing oxygen sensor. Oxygen sensors are not included.

How long is each extension harness?

Each harness provides approximately 36 inches of additional wiring length.

How many harnesses are included?

The package contains two O2 sensor extension harnesses.

Does installation require cutting or splicing?

No. For a compatible application, the male-to-female connectors provide a plug-and-play connection.

Will it fit every Corvette or Camaro between the listed years?

Not necessarily. Connector design can vary by model year, engine and sensor position. Verify the connector shape, pin configuration and fitment table before ordering.

Is this for the front or rear oxygen sensors?

[INSERT VERIFIED ANSWER.] Do not install the harness based only on wire length or pin count.

Can it be used with long-tube headers?

It is designed to provide additional O2 sensor wiring reach commonly needed for modified exhaust and header installations. Compatibility still depends on the vehicle, sensor position and connector configuration.

Fitment Assistance

If you are unsure about compatibility, contact ETL Industries before ordering and provide:

• Vehicle year

• Make and model

• Engine

• Front or rear sensor location

• A clear photo of the vehicle-side connector

We will help you compare the connector configuration.