DENSO 234-5175 Air/Fuel Ratio Sensor Heated Direct Fit - 4-Wire

The DENSO 234-5175 is a precision-engineered air/fuel ratio sensor designed to optimize engine performance, reduce emissions, and maximize fuel efficiency. This sensor measures the air-to-fuel mixture in the exhaust stream under a wide range of driving conditions and sends critical information to the engine management computer for real-time adjustments.

Key Features:

• 4-wire heated design with 11.46-inch wire harness length for direct-fit installation
• Female connector with 0.708-inch thread diameter
• Tarnish-proof platinum electrode provides longer life and maintains accuracy
• Quick-response planar zirconia element quickly detects oxygen concentration
• Measures air/fuel ratios from approximately 12:1 to 19:1
• Aluminum-oxide trap layer prevents damage to the electrode
• Damage-tolerant stainless steel construction with watertight housing
• Porous PTFE filter prevents particulates from entering the sensor casing

Performance Benefits:

• Reduces fuel consumption and harmful emissions
• Maximizes catalytic converter life by maintaining optimal air/fuel ratios
• Provides finer control than traditional oxygen sensors across varied operating conditions
• Enables more efficient fuel injection and engine timing

DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance, with each component precision-built for exact replacement and a first-time fit. This sensor replaces OEM part number FB5Z9F472A and is compatible with select 2015-2020 Ford and Lincoln vehicles as an upstream sensor replacement.