NGK 23141 NTK Oxygen Sensor Direct Fit Heated 4-Wire 18mm O2 Sensor

The NGK 23141 NTK oxygen sensor (also called an O2 sensor or air-fuel ratio sensor) is a direct-fit, OE-identical replacement. It monitors oxygen in the exhaust and sends that data to the engine control module. The ECM uses it to keep the air-fuel mixture correct, which supports fuel economy, emissions control and smooth engine performance.

Key Features:

• Heated narrow-band design with an integrated heater, so the sensor reaches operating temperature quickly. This allows earlier closed-loop operation and lower cold-start emissions.
• Ceramic sensing element with a dual-coated platinum interface for fast response and long service life.
• Contaminant protection from a protective overcoat and a corrosion-resistant housing. A porous PTFE filter lets atmospheric oxygen in while keeping water and engine contaminants out.
• OE-specified connector and harness hardware for easy installation.

Specifications:

• Manufacturer part number: 23141
• Sensor type: heated, narrow-band, 4-wire
• Thread size: M18 x 1.5 (18 mm)
• Hex/wrench size: 22 mm (7/8 in)
• Wire length: 457 mm (18 in)
• Connector: OE-style, female, 4-pin
• Mounting: threaded, no flange

Cross-references: Standard Motor Products SG663, SG717 and SG730; Spectra Premium OS5245; Chrysler 5139020AA, 56041846AA and 56041952AA; Bosch 13610, 13671, 13687, 13691, 13714, 15304 and 15469; ACDelco 213-2969 and 213-2989.

A worn oxygen sensor can cause poor fuel economy, a check engine light and failed emissions tests. Replacing it with a quality NTK sensor helps restore proper engine management.