Emissions Control Starts Here – Cummins DEF Head Unit OEM ASPFL-2336
What is it?
The Cummins DEF Head Unit (OEM ASPFL-2336) is a genuine OEM component designed to monitor and manage Diesel Exhaust Fluid (DEF) levels in the DEF tank. It accurately measures DEF temperature, level, and quality, transmitting critical data to the engine control module (ECM) to maintain optimal emissions control in Cummins engines.
Why Choose Cummins DEF Head Unit – OEM ASPFL-2336
Engineered to Cummins’ original specifications, the OEM ASPFL-2336 DEF Head Unit ensures accurate DEF level monitoring and reliable communication with the ECM. Replacing a faulty DEF head unit with this OEM part helps prevent emission-related faults, engine derates, and excessive DEF consumption.
Key Benefits:
✅ Accurate DEF Monitoring – Measures DEF level, temperature, and quality for optimal emissions control
✅ OEM-Grade Reliability – Built to Cummins standards for precise fitment and long service life
✅ Prevents Fault Codes and Derates – Helps avoid ECM errors and performance limitations
✅ Resistant to DEF Crystallization – Designed to handle exposure to DEF and prevent sensor contamination
✅ Supports Emissions Compliance – Ensures accurate DEF dosing to meet EPA standards
Applications
The OEM ASPFL-2336 DEF Head Unit is compatible with various Cummins engines equipped with DEF systems. It is commonly found in heavy-duty trucks, buses, and industrial machinery, where precise DEF monitoring is crucial for emissions compliance and engine performance.
Installation Notes
Before installation, disconnect the battery and relieve pressure in the DEF system. Remove the old DEF head unit carefully, inspecting connectors and hoses for contamination. Install the new unit with fresh seals and torque to Cummins specifications. Once installed, clear any fault codes using diagnostic tools and verify DEF level readings.
Final Thoughts
A malfunctioning DEF head unit can lead to inaccurate DEF readings and potential engine derates. Restore accurate DEF monitoring and emissions compliance with the Cummins DEF Head Unit OEM ASPFL-2336. Available now at Tamerx—your source for trusted OEM diesel parts.