# NGK Acura RSX 2004-2002 Direct Fit 4-Wire A/F Sensor NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology. - ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning This Part Fits: Year Make Model Submodel 2002-2004 Acura RSX Base 2002-2004 Acura RSX Type-S 2004-2005 Honda Civic DX 2001-2005 Honda Civic HX 2003-2005 Honda Civic Hybrid 2004-2005 Honda Civic LX 2005 Honda Civic LX Special Edition 2002-2005 Honda Civic Si 2004-2005 Honda Civic Value Package 2002-2004 Honda CR-V EX 2002-2004 Honda CR-V LX ## Details - **Price:** 491.96 CAD - **Vendor:** NGK - **Type:** Oxygen Sensors ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 491.96 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-acura-rsx-2004-2002-direct-fit-4-wire-a-f-sensor) > Updated: 2026-06-27