OEM Info & Cross References
• OEM / Equivalent Part Numbers: A0091530028 is the main reference. It is also cross-referenced with 5WK9-6653B/C, A0101539528, etc. 
• Voltage: 24 V, typical for heavy-duty truck / commercial diesel NOx sensors. 
• Vehicle Fit: These sensors are used in Mercedes Actros MP4/MP5 Euro 6, Atego, Axor, Econic (commercial trucks), etc. 
• OEM vs Aftermarket: OEM (or genuine/rebranded OEM) tends to be more reliable, especially for emission sensors. Aftermarket works but quality varies.