Volvo 23381562 DEF Pump Filter – D13 / Mack MP8

Description The Volvo 23381562 filter is designed for the DEF (Diesel Exhaust Fluid) pump system used in Volvo D13 and Mack MP8 engines. Its main function is to clean DEF fluid by trapping dirt, dust, and other impurities before they reach sensitive components of the SCR (Selective Catalytic Reduction) system. Clean DEF fluid is critical for maintaining compliance with emission standards, extending the life of your DEF pump, and keeping your truck on the road without costly breakdowns. This filter replaces and cross-references several part numbers, including Bosch 5303604 and Volvo 21516229. By using the Volvo 23381562 filter, you ensure proper fit, reliable sealing, and long-term durability, unlike generic alternatives. In addition, the corrosion-resistant design helps prevent clogging, which supports consistent DEF flow even under demanding operating conditions. For fleet operators and independent truck owners, keeping the DEF system protected means lower maintenance costs and less downtime. The Volvo 23381562 filter safeguards dosing valves, injectors, and sensors, which are expensive to repair if contaminated DEF enters the system. Therefore, installing this filter is not just a routine replacement but an investment in long-term performance and efficiency. To achieve the best results, Volvo recommends pairing the 23381562 filter with genuine DEF fluid and following regular service intervals. You can also check our Volvo filters catalog for additional products to keep your truck in top shape. For more technical information, visit the official Volvo Trucks website or consult Bosch documentation for cross-referenced parts. When you choose the Volvo 23381562 filter, you are protecting your DEF pump, ensuring compliance with emission regulations, and improving overall reliability. This small yet essential part plays a big role in keeping your Volvo or Mack truck running smoothly, mile after mile.