GPD 1815179 Nitrogen Oxide NOx Sensor Direct Fit Replacement

The GPD 1815179 is a direct-fit replacement Nitrogen Oxide (NOx) sensor engineered to restore proper emissions system function. As a critical component in diesel exhaust aftertreatment systems, the NOx sensor continuously monitors the concentration of nitrogen oxides in the exhaust stream and transmits real-time data to the engine control unit (ECU), enabling the system to regulate SCR (Selective Catalytic Reduction) performance and maintain emissions compliance.

Key Features:

• Designed to meet or exceed OEM fit, form, and function
• Direct-fit replacement — no modifications required
• Application-specific design for precise signal accuracy
• Durability tested on every new design
• Built to withstand high-temperature and high-vibration underbody environments
• Helps eliminate NOx-related diagnostic trouble codes (DTCs)
• Supports optimal SCR system operation and fuel efficiency

GPD (Global Parts Distributors) has been a trusted national distributor of aftermarket automotive and heavy-duty engine management parts since 1974. The GPD 1815179 NOx sensor is sold as a single unit and is intended for North American vehicles. Note: Some applications may require a reset or relearn procedure following installation — consult your service manual or diagnostic tool for guidance.