Replacement REPT960924 Heated Oxygen Sensor Downstream Sensor - 4-Wire O2

The Replacement REPT960924 is a heated, 4-wire downstream oxygen sensor designed as a direct OEM-quality replacement. This sensor monitors exhaust gases after the catalytic converter, providing critical feedback to the engine control module (ECM) to help maintain proper fuel trim, reduce emissions, and protect catalytic converter efficiency.

Key Features:

• Sensor Type: Heated oxygen sensor (HO2S) — faster warm-up for accurate readings
• Wiring: 4-wire design for compatibility with modern heated sensor circuits
• Position: Downstream (post-catalytic converter) placement
• Replacement Type: Direct OEM replacement for precise fit and function
• Function: Monitors catalytic converter efficiency and exhaust oxygen levels
• Construction: Built to meet or exceed original equipment specifications

Designed as a straightforward drop-in replacement, the REPT960924 restores proper oxygen sensor function and helps clear related diagnostic trouble codes (DTCs). Proper downstream O2 sensor operation is essential for passing emissions inspections and maintaining optimal fuel economy.