Mack DEF Urea Pump 21577507 For Volvo Truck
1.OEM Part No.: 21577507/21577511
2.Material: Aluminum Alloy/Copper/Steel
3.Condition: 100% New genuine/OEM/ODM/ready stock
4.Shipping Time: Worldwide delivery within 3–5 business days
5.Payment Methods: T/T, PayPal, Western Union
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
The DEF Supply Module Pump is a critical component of the Selective Catalytic Reduction (SCR) system in modern Volvo and Mack trucks. Its primary function is to deliver pressurized urea solution (AdBlue/DEF) to the dosing valve, enabling the reduction of harmful NOx emissions into harmless nitrogen and water vapor. IT is engineered to meet Euro 4, Euro 5, and EPA standards for heavy-duty commercial vehicles.
Identification & Cross-Numbers
Common OE：21577507/21577511
Identification & Cross-Numbers：21332704, 21332711, 23387866,0444042002,85003661, 85003961,0444042003, 0444042004, 0444042009, 0444042013
Products Paramter
| Parameter | Specification |
|---|---|
| Product No. | DEF Supply Module / Urea Pump |
| Voltage | 12V / 24V (Specific to Application) |
| Operating Pressure | 5.0 - 9.0 Bar |
| Flow Rate | 5.0 - 7.5 L/h |
| System Compatibility | SCR Emissions System |
| Weight | Around3.2 - 4.5 kg |
| OEM Standard | Meets or exceeds EPA/Euro 5 Standards |
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Advantages and highlights:
Precision Dosing: Advanced sensors ensure exact DEF delivery, preventing "crystal blockages" in the SCR system.
OEM Compatibility: Manufactured to 1:1 original specifications for a "plug-and-play" installation on Volvo/Mack chassis.
Extreme Durability: Tested to operate in temperatures ranging from -40°C (with internal heaters) to +85°C.
Cost-Efficient: Provides a high-performance alternative to expensive dealer parts without compromising system life.
Low Noise Operation: Optimized motor design reduces vibration and noise during the injection cycle.
Basic Information about the Company
Onode company is one of the leading exporter of truck parts and engineering machinery and equipment in China, petrochemical manufacturer,based on 3 families' factories, and over 50 cooperated factories. We can provide about 7000 varieties of spare parts for European & Chinese Trucks ; Onode company was found in 2007, originally to dealing with truck parts and engineering machinery & equipment and petrochemical. Meanwhile we invest to develop spare parts for European truck together with ourfamilies" factories. With the powerful product development department, professional quality control department andenthusiastic service team, our company growth very fast inthe past 20 years.
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FAQ
Q: Will this pump throw an "Emission Fault" code after installation?
A: No. the pump is designed to match the original communication protocol (CAN-bus) of the Volvo/Mack ECU. to recommend clearing existing codes after installation.
Q: Does the pump have an integrated heater?
A: Yes, our DEF pump includes an internal heating element to prevent the urea from freezing in cold climates, ensuring reliable winter operation.
Q: How do you prevent urea crystallization inside the pump during storage or shipping?
A: All units are tested and then purged/sealed with protective caps. please keeping the caps on until installation.
Q: What is the warranty period?
A: We provide a 12-month quality warranty.
CONTACT
location
Moblie/whatsapp/wechat:
Ms. Laura Chou +86 18192615871
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