Walker 250-241342 Oxygen Sensor - Downstream

OE Base Oxygen Sensor for Wrangler

Walker 250-241342 is an OE Base Sensor oxygen sensor built for downstream monitoring on select Jeep Wrangler models. It uses a heated narrow-band design with a 4-wire layout and M18 x 1.5 thread size to match the specified application and deliver ECU feedback for emissions control.

Compatible With 2021-2025 Jeep Wrangler, downstream. The Walker OE Base Sensor line focuses on application-specific fitment and sensor output for vehicles that rely on accurate exhaust feedback to manage fuel control and emissions performance.

Key Features

• Heated narrow-band oxygen sensor for downstream placement
• Application-specific fitment for select Jeep Wrangler models
• 4-wire construction with 4 terminals
• Oblong connector shape with male connector and female terminals
• M18 x 1.5 thread size for the listed vehicle application
• Walker 250-241342 OE Base Sensor replacement

Detailed Description

Walker Products 250-241342 is engineered as an OE-style replacement oxygen sensor for the downstream position on 2021-2025 Jeep Wrangler models. As part of the Walker OE Base Sensor line, it is built around the specific application, fitment position, and diagnostic feedback requirements expected by the ECU. For Wrangler owners searching for a downstream oxygen sensor, Jeep Wrangler oxygen sensor replacement, or Walker 250-241342, this part is matched to the listed vehicle coverage and sensor configuration.

Walker Products has supplied engine management and oxygen/air-fuel sensors since 1946 and manufactures electronic components under ISO 9001/TS 16949 quality systems. The brand’s OE Base Sensor line is focused on direct-fit replacement coverage for the specified application, including the correct connector style, wire count, and thread specification.

What It Helps Address

• Stored fault codes related to the downstream oxygen sensor circuit
• Rough engine operation caused by inaccurate exhaust feedback
• Increased fuel consumption from incorrect sensor readings
• Elevated exhaust emissions from a failing oxygen sensor
• Malfunction indicator light illumination tied to sensor performance

Installation Notes and Tips

Before installation, inspect the sensor wiring harness and connector for heat damage, corrosion, or broken terminals. Confirm the downstream location and verify the connector shape, wire count, and thread size match the original sensor on the vehicle. If the old sensor failed from wiring or connector damage, repair those issues before installing Walker 250-241342 to avoid shortened service life.

Quality Assurance

Walker Products manufactures this OE Base Sensor as an application-specific replacement for the listed Jeep Wrangler coverage. The part is produced under the company’s automotive quality management standards and is intended to provide the diagnostic feedback required by the ECU for the specified downstream position.