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- Filter Element Adblue BS4
- Filter Cartridge BS4
- Filter Element Adblue BS6
- Filter Cartridge BS6
- Pump Module BS4
- Supply Unit / Urea LO W/O EDU D4 MHF
- Metering Equipment BS4
- Soot Filter
- AdBlue Filter Tank Level
- Additive Line / HI.PR/28TC/Polyhose
- Additive Line / AdBlue Suction Line/P
- AdBlue Cap Latest
- AdBlue Cap
- LU Fill-Level Sensor / Urea Level
Supply Unit / Urea LO W/O EDU D4 MHF
This supply module maintains steady suction and delivery pressure to ensure reliable AdBlue/urea flow toward the metering system. Built with corrosion-resistant components and advanced filtration, it prevents crystallization, contamination, and flow disruptions. Designed without the EDU (Electronic Dosing Unit) for this configuration, it integrates smoothly with the vehicle’s SCR architecture to support emission compliance under BS4/BS6 conditions.
By ensuring a stable urea supply, this unit helps maintain proper NOx reduction, reduces engine emission levels, and prevents system faults. It improves overall SCR efficiency, supports consistent vehicle performance, and enables long-term reliability for commercial diesel engines operating under heavy load cycles.
Key Features
- Urea/AdBlue supply module without EDU
- Ensures consistent urea flow to the dosing system
- Corrosion-resistant, crystallization-proof construction
- Supports SCR functionality and emission compliance
- Ideal for heavy-duty commercial diesel vehicles
Product Specifications
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 17.006 | 3128, 2523, 2528 | A0001407678 | Supply Unit – Urea LO, Without EDU (D4 MHF Type) |
Process Steps
- Disconnect electrical and urea lines from old supply unit
- Remove module from mounting location
- Install new supply unit and secure all fittings
- Reconnect lines and electrical connectors
- Prime system to remove air and ensure steady flow
- Run SCR diagnostic to check system pressure and dosing readiness
FAQ
What does this supply unit do?
It pumps urea from the tank to the dosing unit, ensuring continuous flow for SCR operation.
When should it be replaced?
When pressure drops, flow faults appear, crystallization occurs, or SCR warnings are triggered.
