Multiquip Y0602330457 DEF Line (JP) - OEM Replacement Part

The DEF Line (JP) is a diesel exhaust fluid delivery component designed for Multiquip super silent generators equipped with emissions control systems. This genuine OEM line ensures proper DEF fluid flow from the tank to the injection system, maintaining compliance with EPA Tier 4 Final emissions standards and preventing SCR system faults that can limit generator performance or trigger shutdown modes.

Engineered specifically for Japanese-spec DCA series super silent generators, this DEF line integrates with the selective catalytic reduction (SCR) aftertreatment system to reduce NOx emissions. The line features corrosion-resistant construction to handle the unique properties of diesel exhaust fluid, including its slightly corrosive nature and freezing point of 12°F. Regular inspection of DEF lines is critical during routine maintenance intervals, as degradation, cracking, or blockages can trigger diagnostic trouble codes and reduce power output.

Compatible generator models:

• DCA125SSIU4F

Genuine Multiquip OEM part, sold by an authorized dealer.