Bosch 17071 OE Identical Wideband Air/Fuel Ratio Oxygen Sensor

The Bosch 17071 is a premium OE-identical wideband air/fuel ratio (AFR) oxygen sensor engineered for upstream (pre-catalyst) placement. As the original inventor of the oxygen sensor, Bosch brings decades of manufacturing expertise to every unit — delivering factory-matched performance and long-lasting reliability.

Unlike conventional switching-type O2 sensors, this wideband sensing element continuously measures the precise concentration of oxygen in the exhaust stream, allowing the engine control unit (ECU) to maintain the ideal 14.7:1 air-to-fuel ratio in real time. Accurate AFR control reduces harmful emissions and optimizes fuel economy.

Key Features:

• Wideband planar sensing element — precisely measures oxygen content rather than simply switching between rich and lean signals
• Zirconium sensing element with heated design for rapid warm-up and accurate readings within seconds of engine start
• 5-wire heated sensor with true direct-fit OE connector and harness for hassle-free, no-modification installation
• Double laser-welded stainless steel body — fully submersible and sealed to protect against exhaust damage and extend service life
• Threads pre-coated with anti-seize compound straight from the box for easy installation and future removal
• 100% functionally tested — every sensor is quality-verified before leaving the factory
• M18 x 1.5 thread with 22 mm hex for standard fitment
• Wire/harness length: approximately 27.5 inches (699 mm)

Specifications:

• Sensor Type: Wideband Air/Fuel Ratio (AFR), Planar
• Number of Wires: 5
• Thread Diameter: 18 mm (M18 x 1.5)
• Hex Size: 22 mm
• Connector Type: OE Direct-Fit, Male Spade
• Mounting Type: Threaded
• Housing Material: Stainless Steel
• Sensing Material: Zirconium
• Heated: Yes
• Position: Upstream (Before Catalyst)
• OEM Cross-Reference: 022906262AN
• Warranty: 12 Months

Sold individually. Wiring harness included. No oxygen sensor bung included.