NTK Oxygen Sensor P/N:25270

Keep your engine running in closed loop and your air-fuel ratio in check with the NTK Oxygen Sensor 25270, a heated narrow-band switching zirconia sensor that feeds constant oxygen readings back to the ECU. It's a specific-fit replacement for a wide range of applications, including the 2003 Chrysler PT Cruiser [L4-2.4L], 2003-2004 Dodge Neon [L4-2.0L], 2010-2011 Jeep Wrangler [V6-3.8L], multiple Mercedes-Benz models (AMG GT, GLE350, ML350 and more), and the 2016-2017 Smart Fortwo [L3-0.9L] — see the Buyer's Guide tab for the full list.

Oxygen sensors provide constant closed-loop feedback to the ECU to help control the air-fuel ratio and alert the OBDII system to possible fuel-delivery or catalytic-converter efficiency problems. If a failed oxygen sensor is the cause of a check engine light, rough running, or poor fuel economy, this replaces it.

• Switching zirconia element: heated, narrow-band design with a dual-coated platinum interface and thinner ceramic element for fast light-off and response.
• Contaminant-resistant overcoat: a 3-stage plasma jet and deposit trap overcoat helps protect the element against poisoning.
• Easy installation: equipped with OE-specified, water-resistant connector and harness accessory hardware.
• Specs: threaded M18-1.5 mounting, 7/8 (22mm) wrench size, 4-pin female rectangular connector with 4 wires, made in Japan.

NTK builds to meet or exceed OEM specifications, with vibration and thermal-shock testing during OE development. Manufacturer part number 25270.