Walker 250-241266 Oxygen Sensor - Upstream Right

OE Oxygen Sensor for Silverado and Sierra

Walker Products OE 250-241266 is an oxygen sensor engineered as an original-equipment replacement for specific 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It provides the ECU with the diagnostic feedback needed for proper fuel control and emissions monitoring.

Key Features

• OE-style oxygen sensor for upstream right placement
• Fits Bank 2 Sensor 1 applications on select 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 models
• Built for direct replacement in the specified position
• Supports ECU feedback for emissions and engine management
• Walker Products OE line for application-specific fitment

Application Details

Fits 2020 Chevrolet Silverado 1500, Upstream Right. Fits 2020 GMC Sierra 1500, Upstream Right. This Walker Products OE oxygen sensor, part number 250-241266, is specified for the right-side upstream location on Bank 2 Sensor 1, in front of or inside the catalytic converter. For Silverado 1500 and Sierra 1500 owners searching for a 2020 upstream right oxygen sensor replacement, this part matches the listed vehicle position and diagnostic role.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough engine operation from inaccurate ECU sensor input
• Higher exhaust emissions from a failing upstream sensor
• Fault codes tied to Bank 2 Sensor 1 on the listed vehicles

Installation Notes and Tips

Confirm the sensor location, connector, and harness condition before replacement. Inspect the wiring and connector for damage, since physical wear can shorten sensor life and affect readings. Verify the vehicle’s fault codes and position details against the listed fitment before installation.

Quality Assurance

Walker Products OE sensors are developed as OE replacement parts for specific applications and positions. Walker Products has manufactured engine management and fuel system components since 1946 and operates under ISO 9001/TS 16949 quality systems.