GPD 1815160 Nitrogen Oxide NOx Sensor Direct Fit Replacement

The GPD 1815160 is a direct-fit aftermarket Nitrogen Oxide (NOx) sensor engineered to meet or exceed OEM fit, form, and function. Designed for diesel-powered vehicles equipped with Selective Catalytic Reduction (SCR) aftertreatment systems, this sensor plays a critical role in monitoring exhaust emissions and maintaining compliance with EPA regulations.

The NOx sensor continuously measures the concentration of nitrogen oxides in the exhaust stream and transmits real-time data to the engine control unit (ECU). The ECU uses this information to regulate DEF (Diesel Exhaust Fluid) injection and optimize SCR system performance, keeping emissions within legal limits and helping the engine run efficiently.

Key Features:

• Direct-fit replacement — no modifications required for installation
• Designed to meet or exceed OEM fit, form, and function specifications
• Durability tested on every new design for long-lasting reliability
• Application-specific engineering for precise sensor readings
• Monitors nitrogen oxide (NO and NO₂) levels in the exhaust aftertreatment system
• Supports proper SCR catalyst function and OBD emissions compliance
• Sold as a single sensor

GPD (Global Parts Distributors) is a national distributor of aftermarket automotive and heavy-duty engine management parts, with a product line focused on quality and availability. The 1815160 is part of their emissions sensor lineup built to restore proper SCR system operation and eliminate NOx-related fault codes.