Multiquip RE552182 NOx Sensor - OEM Replacement Part for Super Silent Generators

The NOx sensor monitors nitrogen oxide emissions in diesel generator exhaust systems, providing critical feedback to the engine control unit for emissions compliance and DOC/SCR system operation. This sensor is essential for maintaining EPA Tier 4 Final compliance in Multiquip Super Silent generator models equipped with advanced emission control systems including the DOC/SCR assembly referenced in the WhisperWatt series technical documentation.

In Super Silent generator applications, the NOx sensor works in conjunction with the diesel oxidation catalyst and selective catalytic reduction system to ensure optimal exhaust aftertreatment performance. Sensor failure can trigger fault codes, derate engine power, or prevent generator operation entirely. Regular inspection and replacement of emission sensors is critical for maintaining compliance and avoiding costly downtime on job sites.

Compatible with the following Multiquip generator models:

• DCA150SSJU4F
• DCA220SSJU4F
• DCA220SSJU4F3
• DCA300SSJU4F
• DCA300SSJU4F3
• DCA70SSJU4F

Genuine Multiquip OEM part, sold by an authorized dealer.