The Red Jacket® CoreDEF™ Submersible Turbine Pumps are a revolutionary solution that sets a higher standard in the optimization of diesel exhaust fluid (DEF) pumping infrastructure. The CoreDEF™ STP is the entirely customizable DEF pump, designed for a complete range of light to heavy duty submersible DEF applications.

Various motor sizes, Quick Set® variable lengths, and the only adjustable pressure relief offering on the market, make the CoreDEF pump a flexible solution that can be tailored to maximize value, while controlling cost.   

With included pre-assembly and factory leak testing, the CoreDEF submersible DEF pump cuts out the stress and time of installation and get you pumping sooner.

Features and Benefits

Model Portfolio for Varying Applications:

  • The CoreDEF Series Portfolio holds the perfect motor size for your site.

Factory Leak Tested – Diesel Exhaust Fluid is extremely hard to contain and even harder to clean up:

  • CoreDEF submersible DEF pumps are factory-tested to prevent any possibility of leaks in the field.

  • Using a competitive pump may allow leaks and crystallization, seriously complicating serviceability.

Adjustable Pressure Relief Option – Enables the user to adjust line pressure between 20-45 PSI, making for painless post-installation flow rate tuning:

  • Optimize operation with any dispenser.

  • Avoid excessive nozzle squeeze.

  • Prevent nozzle spit back.

Product Compatibility:

  • Designed for DEF consisting of 32.5% urea and 67.5% de-ionized water.

  • Liquid Quality Compliance: The submersible pump and supplied components satisfy the ISO 22241 standard for DEF quality.

Motor Construction and STP Design:

  • Durable stainless-steel construction for longevity and DEF compatibility.

  • Capacitor stored in control box for simple installation, easy access and improved operation environment

  • Pressure relief valve allows for continuous running and protects motor when nozzles are idle.

  • Capable of 30 start/stop cycles per hour to prevent motor burnout.

  • Portfolio of motors available to meet global power requirements. 

  • Check Valve available to maintain line pressurization during idle periods.

Adjustable or Fixed Pressure Relief

The Adjustable Pressure Relief Configuration is exclusive to the Red Jacket CoreDEF STP and introduces post-installation flow adjustment to your DEF pump. While the fixed pressure relief option is simple to specify and easy to install and provides exceptional performance and gets you up and running fast.  With either configuration, Red Jacket takes the time to perform advanced factory leak testing on each unit to ensure tightness and reliability before arriving to the field.

Superior Flow


Integrating your site with Veeder-Root’s all-inclusive DEF management system gives operators the power to fight back against erratic leaks, messy cleanups, and temperature induced product degradation, associated with other DEF handling systems.

Learn More


Fuel Compatibility

  • Diesel Exhaust Fluid* (DEF or Adblue)

  • Meets ISO 22241 standard for DEF quality

*consisting of 32.5% urea and 67.5% de-ionized water

Motor Sizing

  • 3/4 HP, 60 HZ, 1-phase

  • 2 HP, 60 HZ, 1-phase

  • 2 HP, 60 HZ, 3-phase

Line Pressure Relief Options

Fixed Pressure Relief (In Tank)

  • Maintains Max Line Pressure of 45-50 PSI

Adjustable Pressure Relief (In Sump)

  • Enables Post-Installation Line Pressure Adjustment range between 25-45 PSI

Hardware Construction

Column Pipe:

  • Schedule 40 Stainless Steel

Impellers and Diffusers:

  • Fiberglass reinforced

Pump and Motor Side Mechanical Seals:

  • Silicon Carbide


  • FKM

Protective Coatings

  • N/A

DEF Fluid - Operating Temperature Range

  • +12°F to +104°F (-11°C to +40°C)

Installation Depth Range

Quick Set (Adjustable Length)

  • D1 = 66" - 97"**

  • D2 = 96" – 157”**

**Assumes 3/4 HP

Check Valve Compatibility

  • CoreDEF Inline Stainless Steel Check Valve: 410881-001


Agency Listings:

  • CSA (2HP Only)