NGK 24326 Wideband Air/Fuel Ratio Oxygen Sensor 5-Wire Upstream A/F Sensor

The NGK (NTK) 24326 is an OE-type wideband oxygen sensor, also called an air/fuel ratio (A/F or AFR) sensor, for upstream use. It measures the air/fuel mixture and sends that data to the engine control unit. The ECU uses it to keep fuel delivery accurate, which supports efficient combustion, good fuel economy, and low emissions.

Key Features:

• Wideband sensor design with a highly sensitive sensing element and an integrated heater
• Precise air/fuel ratio measurement from 10:1 to 28:1
• 5-wire design with a direct plug-in OE-style connector, so no cutting or splicing is needed
• Wiring harness included, with a wire length of 28.5 in. (725 mm)
• Thread size M18 x 1.5 mm, screw-on mounting, non-flanged
• Contaminant-resistant ceramic element with a deposit-trap overcoat to protect against element poisoning
• Water-resistant OE-specification connector
• Meets or exceeds emission standards
• Limited 1-year warranty

Cross-References / OE Numbers: 93185453, 03G906262A, 03L906262Q, 04E906262G, 06J906262T, 392102B210, 392102B410, 8F9Z9F472C, 8F9Z9F472E, 8F9Z9F472G.

A worn or failing air/fuel ratio sensor can cause a check-engine light, poor fuel economy, and rough running. Replacing it with an OE-type NGK sensor helps restore proper fuel control.