FITMENT:
Compatible with DAF Euro 6 trucks equipped with SCR (AdBlue/DEF) systems, including:

• DAF XF Euro 6 (MX-11 / MX-13 engines)
• DAF CF Euro 6
• DAF LF Euro 6 (select applications)
• DAF XF / CF newer generation SCR systems

OEM / Cross reference numbers:

• 1973525
• 1973527
• 1904788
• 2236408
• 1936256 / 1936258 / 2006243 / 2006245 (related OE family references)
• 5WK97344B / 5WK96661D (Continental platform equivalents depending on engine version)

📌 These sensors belong to DAF’s Euro 6 SCR NOx sensor family, commonly used on MX engines and aftertreatment systems.

FUNCTION:

• Measures nitrogen oxide (NOx) concentration in diesel exhaust
• Sends real-time data to ECU via CAN (J1939 communication)
• Controls AdBlue (DEF) dosing for SCR efficiency
• Monitors catalyst performance and emissions compliance
• Helps prevent engine derate and SCR system faults

INSTALLATION POSITION:

• SCR inlet or outlet NOx sensor (depends on configuration)
• Mounted on exhaust line before or after SCR catalyst
• Often used in dual-sensor setup (upstream + downstream system)

IMPORTANT NOTE:
DAF NOx sensors in this family are highly cross-referenced, meaning:

• Same sensor platform used across XF / CF Euro 6 models
• Inlet and outlet sensors are NOT interchangeable
• Compatibility depends on engine type (MX-11 vs MX-13) and build date
• ECU software defines correct sensor position

Incorrect selection may cause SCR faults, AdBlue errors, or engine derate.

FAQ:

Q1: What vehicles does it fit?
A1: DAF XF, CF, LF Euro 6 trucks with MX-11 / MX-13 engines.

Q2: Is this inlet or outlet sensor?
A2: It can be inlet or outlet depending on SCR system configuration.

Q3: What are failure symptoms?
A3: SCR warning light, AdBlue system fault, NOx sensor error codes, engine derate.

Q4: Are 1973525 and 1904788 interchangeable?
A4: Yes, they belong to the same DAF Euro 6 NOx sensor family.

Q5: Does installation require programming?
A5: Some DAF models require SCR reset or ECU adaptation after replacement.