Standard Ignition S3129 Oxygen Sensor Connector

Oxygen Sensor Connector for Nissan and INFINITI

Standard Ignition S3129 is an oxygen sensor connector built for direct electrical repair on select Nissan and INFINITI applications. It features a 4-wire, male rectangular housing with blade terminals and a 17-inch harness length for a clean replacement connection.

Key Features

• Male rectangular connector with female blade terminals
• 4-wire design for oxygen sensor circuit repair
• 18-gauge harness with 17-inch (43 cm) length
• 0-degree bend angle for straightforward routing
• Compact 1-inch housing length
• Standard Ignition S3129 replacement connector

Detailed Description

Standard Ignition S3129 is an oxygen sensor connector for repairing damaged, corroded, or broken sensor wiring at the connector interface. The 4-terminal layout, 18-gauge wire, and rectangular housing support a direct electrical connection on vehicles such as the 2014-2015 INFINITI Q50, 2015 INFINITI Q60, and 2015 Nissan Rogue. This part cross-references EC3154 and PT3902 for the same application.

Compatible With 2014-2015 INFINITI Q50, 2015 INFINITI Q60, 2014-2015 INFINITI Q70, 2015 INFINITI Q70L, 2015 INFINITI QX50, 2015 INFINITI QX60, 2015 INFINITI QX70, 2015 INFINITI QX80, 2015 Nissan Altima, 2015 Nissan Frontier, 2015 Nissan Murano, 2015 Nissan Pathfinder, 2015 Nissan Quest, 2015 Nissan Rogue, and 2015 Nissan Xterra. Fits 2015 Nissan Rogue, downstream sensor.

Common Repair Uses

• Broken oxygen sensor connector at the harness end
• Corrosion or heat damage at the terminal interface
• Intermittent sensor signal caused by poor pin contact
• Wiring repair after exhaust or underbody exposure
• Replacement of a cracked or worn connector shell

Installation Notes and Tips

Match the connector shape, terminal style, and wire count before installation. Verify the harness routing and sensor location on the vehicle, especially on the 2015 Nissan Rogue downstream sensor application. Confirm pin alignment and secure the connection fully to maintain stable electrical contact.

Quality Assurance

Standard Ignition supplies electrical replacement parts for service and repair applications. S3129 is built to match the listed connector configuration for the specified Nissan and INFINITI fitments.