Walker 250-25192 Oxygen Sensor - Upstream

Overview

Walker OE Base Sensor oxygen sensor 250-25192 is a specific-fit, threaded replacement built for upstream exhaust monitoring. It uses a heated wide-band design with a D-shape connector and 5-wire configuration for direct sensor replacement on supported applications.

Compatible With 2021-2026 Hyundai Elantra, upstream. This Walker oxygen sensor is identified by part number 250-25192 and is built to match the OE Base Sensor line for standard replacement needs.

Key Features

• Heated wide-band oxygen sensor for precise exhaust feedback.
• Specific-fit design for direct application matching.
• Threaded M18 x 1.5 mounting with 7/8 in. wrench size.
• 5-wire layout with blade terminals and a female D-shape connector.
• Standard replacement grade for emission control service.

Detailed Description

The Walker 250-25192 oxygen sensor is a threaded, heated wide-band sensor designed for upstream placement in supported Hyundai Elantra applications. Its specific-fit construction, 610 mm overall length, and 585 mm harness length help match the original sensor layout, while the 6-terminal connector interface and 20-gauge wiring support proper electrical connection. As part of the OE Base Sensor line, this sensor focuses on standard replacement requirements for emission control maintenance.

Walker 250-25192 is a practical choice when replacing a worn or faulty upstream oxygen sensor on a 2021-2026 Hyundai Elantra. The M18 x 1.5 thread size and blade-terminal, female connector design make it a direct-fit style service part for the listed application.

What It Is Used For

• Replacing a failed upstream oxygen sensor.
• Restoring accurate exhaust gas feedback to the engine management system.
• Addressing check engine light conditions related to sensor performance.
• Correcting drivability issues tied to improper air-fuel monitoring.
• Servicing emission control components with a standard replacement sensor.

Installation Notes and Tips

Verify the upstream position and connector style before installation. Confirm thread size, harness length, and terminal configuration against the original sensor to ensure proper fitment on the Hyundai Elantra application. Use the correct oxygen sensor wrench size during removal and installation.

Quality Assurance

Walker OE Base Sensor parts are positioned as standard replacement components for emission control service. Part number 250-25192 is built for the listed specific-fit application.