Home » Products » NOx Sensor » NOx Sensor-5WK9 7331A

NOx Sensor-5WK9 7331A

Availability:

Quantity:



Inquire Add to Basket

Product Description

NOx Sensor - 5WK9 7331A: Advanced Nitrogen Oxide Sensing Solution for Emission Control Systems

The 5WK9 7331A NOx Sensor is a high-precision, OEM-grade component designed for real-time monitoring of nitrogen oxide (NOx) emissions in modern diesel and gasoline engines. Engineered to meet stringent automotive emission standards (e.g., Euro 6, Tier 4 Final, and China 6), this sensor plays a critical role in Selective Catalytic Reduction (SCR) systems, exhaust aftertreatment, and onboard diagnostics (OBD).

Key Features & Benefits:

Robust Design for Harsh Environments

Stainless steel housing with a ceramic substrate resists thermal shock, vibration, and corrosion.

Integrated heater element for rapid cold-start activation (<10 seconds to operating temperature).

CAN/LIN Communication & Diagnostics

Supports CAN 2.0B or PWM signaling for seamless integration with Engine Control Units (ECUs).

Built-in self-diagnostics (e.g., heater malfunction, signal drift) to comply with OBD-II/EOBD regulations.

Plug-and-Play Compatibility

Direct replacement for OEM part numbers in heavy-duty trucks, buses, passenger cars, and off-highway vehicles.

Pre-calibrated for hassle-free installation, reducing maintenance downtime.

Applications:

SCR systems for NOx reduction (e.g., AdBlue/DEF injection control).

Exhaust gas recirculation (EGR) efficiency monitoring.

Compliance with emissions regulations in commercial vehicles, construction machinery, and marine engines.

Why Choose the 5WK9 7331A?

Reliability: Proven in millions of kilometers of field testing.

Cost-Efficiency: Reduces SCR system downtime and maintenance costs.

Compliance: Ensures adherence to global emissions legislation.

For OEMs, aftermarket distributors, and fleet operators, the 5WK9 7331A NOx Sensor offers a trusted solution to optimize engine performance while minimizing environmental impact.

Product Specification

Nox Detection Range	0～2500ppm O2：-12%～21%
Nox Accuracy	0～100ppm: ±10ppm;100～500ppm: ±10%; 500～1500ppm: ±15%;1500～2500ppm: ±30%
O2 Accuracy	0%～5%: ±0.25%;5%～21%: ±5%
Light-off Time	Can reach detection state in 160s
Response Time	T(10-90%):Nox<5300ms T(10-90%):O2-4900ms
Supply Voltage	12V,24V in universal version
Design Life	6000h or 350000km

Nitrogen Oxide – NOx Sensor

1. Quality: We have strict quality standards and good reputation.
2. Low MOQ: It can meet your business needs.

NOx Sensor-5WK9 7331A

NOx Sensor-5WK9 7331A

ABOUT US

QUICK LINKS

PRODUCT CATEGORY

CONTACT US