4817931 Genuine Cummins DEF Pump For Diesel Emissions System

Description

The 4817931 DEF pump is a genuine Cummins component designed for diesel exhaust fluid supply in SCR aftertreatment systems. It delivers DEF at the required operating pressure to ensure proper catalytic reduction of NOx emissions.

General Specifications

Product Features

The 4817931 DEF pump is built to match factory performance and installation requirements:

• Develops the fluid supply needed for operation of the DEF delivery circuit.
• Moves DEF through dedicated lines toward the downstream emissions equipment.
• Provides an active pumping stage between the fluid source and delivery side of the system.
• Maintains directed fluid movement through the established DEF plumbing.
• Works with the existing hydraulic connections used by the emissions circuit.
• Keeps the pump function integrated with the original DEF system arrangement.

Application Notes

The 4817931 DEF pump is intended for engines equipped with the factory Cummins SCR aftertreatment system. After installation, the DEF circuit must be properly primed and checked to confirm correct system performance.

Always verify part number, engine model, and emissions system configuration before installation.