DEF Pump | Volvo / Mack | Volvo 21577507 / 85003865 / 23753845 | FleetRun FR-AFTR484


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6 Month / 50,000 Mile Warranty

 Part Number

  • FleetRun: FR-AFTR484

Cross Reference Part Number

  • Volvo: 21577507 / 23753845 / 85002754 / 85003865 / 21577511 / 21266765 / 21332695
  • Bosch: A444606305 / 0444042204 / 0444042256 / 0444042210


  • 10 Pin Rectangular Electrical Connection
  • 3 Mounting Bolt Holes
  • 1 Inlet / DEF Supply Fitting
  • 1 Outlet / DEF Return Fitting
  • 1 Backflow DEF Fitting
  • 1 Coolant Supply Fitting
  • 1 Coolant Return Fitting

Please note: this is an aftermarket part, the use of other manufacturer's names, part numbers or trademarks is for informational purposes only.

Please verify OEM part numbers before purchasing, FleetRun assumes no liability related to product use and fitment.

  • DEF Filter
  • Lubricant Tube

Introducing the FleetRun FR-AFTR484 DEF Pump - the ultimate solution for your Volvo and Mack commercial vehicles. Whether you're a truck owner/operator, or mechanic, this pump is an essential part of your vehicle's emissions system and will ensure that your truck runs smoothly and efficiently.

Our FleetRun FR-AFTR484 replaces your genuine volvo truck part DEF pump 21577507 and is guaranteed to be compatible with other part numbers like: 85003865 and 23753845. This DEF pump is also compatible with the Bosch A444606305 part number.

This DEF pump is compatible with a wide range of engines, including Volvo D11, Volvo D13, and Mack MP7 and MP8. It's also compatible with popular truck models, making it an easy choice for your truck repair or maintenance needs.

The FleetRun FR-AFTR484 DEF Pump features a 10-pin rectangular electrical connection, three mounting bolt holes, and multiple fittings including an inlet/DEF supply fitting, outlet/DEF return fitting, backflow DEF fitting, coolant supply fitting, and coolant return fitting. The kit also includes a DEF filter and lubricant tube, ensuring that you have everything you need for a successful installation.

At FleetRun, we understand the importance of timely repairs and maintenance for your commercial vehicle, which is why we offer competitive pricing on all of our parts. We believe that purchasing high-quality parts should not break the bank, and that is why we offer the best prices in the market.

This DEF pump is designed to withstand the toughest of conditions and manufactured to meet or exceed OEM standards. It's an essential part of your vehicle's emissions system and will ensure that your truck runs at peak performance.

Our website resources are available 24/7 for you to use, and our knowledgeable team is always available to answer any questions or concerns you may have. If you're looking for other aftertreatment and emissions parts, be sure to check out our related products.

Choose the FleetRun FR-AFTR484 DEF Pump for reliable and efficient emissions system performance in your Volvo or Mack semi truck. 

Here at FleetRun we look to improve our customers image with quality items we keep in stock, so all you have to do is verify the details, make sure its compatible with your current volvo truck def pump 21577507, add the item to your cart, make your purchase and we will ship it out soon after.

Want to verify details, stock or item info? call (872) 240-4144!


  • Volvo D13
  • Volvo D11
  • Mack MP7
  • Mack MP8


  • 2013-2023+ Volvo VNL, VNM, VN Series
  • 2013-2023+ Mack Granite
  • 2013-2017 Mack Pinnacle
  • 2017-2023+ Mack Anthem
  • 6 Month or 50,000 Miles From Purchase (whichever comes first)