AP Exhaust 530194 Replacement Oxygen Sensor Sensor - O2

The AP Exhaust 530194 is a direct-fit replacement oxygen sensor (O2 sensor) engineered to restore proper exhaust monitoring and fuel management performance. Designed as a reliable aftermarket alternative, this sensor helps the engine control unit (ECU) maintain the optimal air-fuel ratio for efficient combustion, reduced emissions, and strong engine performance.

Oxygen sensors — also referred to as O2 sensors or lambda sensors — are critical emissions and engine management components. The sensor reads the oxygen content in the exhaust stream and sends a voltage signal to the ECU, which uses that data to continuously adjust fuel delivery. A failed or degraded O2 sensor can trigger a check engine light, increase fuel consumption, cause rough idling, and accelerate catalytic converter wear.

Key Features:

• Direct-fit replacement O2 sensor designed to match OE form, fit, and function
• Restores proper closed-loop fuel control and air-fuel ratio regulation
• Helps reduce harmful exhaust emissions and maintain emissions compliance
• Supports catalytic converter efficiency and longevity
• Manufactured by AP Exhaust, a trusted name in exhaust and emissions components since 1927

Always verify fitment using the application guide before installation. Replacing a faulty oxygen sensor promptly can prevent secondary damage to the catalytic converter and improve overall fuel economy.