APW Warehouse Supplies AP4-432 Oxygen Sensor OE Replacement

The APW Warehouse Supplies AP4-432 is a direct-fit OE replacement oxygen sensor designed to restore proper air/fuel ratio monitoring and engine management performance. Also known as an O2 sensor or lambda sensor, this part communicates exhaust gas oxygen levels to the engine control module (ECM), allowing the system to continuously adjust the fuel mixture for optimal combustion efficiency.

APW International has been a trusted distributor of quality automotive replacement parts since 1972, supplying repair shops and parts stores across the United States and internationally. The AP4-series oxygen sensors are engineered to meet or exceed original equipment specifications, ensuring a reliable, long-lasting repair.

Key Features:

• Direct OE replacement — designed to match the fit and function of the original sensor
• Restores proper fuel trim and air/fuel ratio control
• Helps eliminate oxygen sensor-related fault codes (P0130–P0167 range)
• Supports improved fuel economy and reduced emissions
• Manufactured to meet or exceed OE specifications
• Part of APW International's extensive AP4-series O2 sensor line

A failed or degraded oxygen sensor can cause rough idling, poor fuel economy, increased emissions, and illuminate the check engine light. Replacing a worn sensor with the AP4-432 helps restore engine performance and ensures your vehicle passes emissions testing.