Multiquip RE560893 DEF Suction Line

The Multiquip RE560893 DEF Suction Line is a genuine OEM component designed for the DCA150SSJU4F, DCA180SSJU4F, and DCA220SSJU4F series ultra-silent diesel generators. As a direct OEM replacement, this line is built to the same specifications as the original, ensuring a correct, trouble-free installation on compatible Tier 4 John Deere-powered DCA super-silent units. DHS Equipment supplies this part direct, so you can be confident you are getting the exact component called out in the Multiquip parts manual for your machine.

Key Features

• Genuine OEM Material Integrity — Constructed to resist DEF fluid corrosion and maintain flexibility across the operating temperature range of diesel exhaust aftertreatment systems.
• Direct-Fit Replacement — Matches the original routing, port dimensions, and connection ends for a clean swap with no rework to surrounding hardware.
• Broad DCA Series Compatibility — Fits DCA150SSJU4F, DCA180SSJU4F, and DCA220SSJU4F Tier 4 super-silent generator models, covering the full upper end of the DCA ultra-silent lineup.
• Protects SCR System Performance — A fully sealed, intact suction line delivers consistent DEF flow to the dosing system, keeping the selective catalytic reduction (SCR) circuit operating at the correct injection rate.
• Emissions Compliance Support — The DEF delivery circuit is a regulated component of the Tier 4 aftertreatment system; using a correctly rated OEM line helps maintain the emissions compliance status of the generator.

The DEF suction line draws diesel exhaust fluid from the onboard DEF tank and delivers it to the dosing module, which injects a precise amount of DEF into the exhaust stream ahead of the selective catalytic reduction (SCR) catalyst. This process converts nitrogen oxide emissions into harmless nitrogen and water vapor, keeping the generator within Tier 4 Final emissions standards. A cracked, blocked, or degraded suction line disrupts DEF flow, which can trigger fault codes, force the generator into a derate condition, and ultimately bring it to a controlled shutdown until the aftertreatment system is restored.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.