Multiquip RE560468 DEF Injector

The Multiquip RE560468 DEF Injector is a genuine OEM component designed for the DCA-series Ultra-Silent diesel generators, including DCA70SSJU4F, DCA150SSJU4F, DCA180SSJU4F, DCA220SSJU4F, and DCA300SSJU4F Tier 4 Final models. As an authorized Multiquip OEM part, RE560468 is manufactured to the same specification as the original unit, ensuring correct fitment and consistent emissions system performance across the full range of compatible DCA generator models. This part covers both standard and 60 Hz variants in the DCA SSJU4F series. Keep this part number on hand for planned DEF system maintenance or unscheduled injector replacement.

Key Features

• Genuine OEM Emissions Accuracy — Manufactured to exact Isuzu Tier 4 Final DEF system tolerances, ensuring the correct spray pattern and dosing rate required for proper SCR catalyst function.
• Direct Plug-In Replacement — Matches the original injector connector, mounting thread, and line fittings on DCA SSJU4F-series generators for a straightforward swap with no line modification.
• Broad DCA Series Compatibility — Fits DCA70SSJU4F, DCA150SSJU4F, DCA180SSJU4F, DCA220SSJU4F, and DCA300SSJU4F models, including 60 Hz and multi-suffix variants.
• Protects Tier 4 Final Compliance — A correctly functioning DEF injector is required for the SCR system to neutralize NOx emissions; a failed injector can trigger fault codes, derate engine output, or cause the generator to shut down.
• Emissions System Integrity — Using the correct OEM injector prevents dosing errors that can damage the SCR catalyst or contaminate the exhaust aftertreatment system — a costly repair to avoid.

The DEF injector is responsible for precisely metering and atomizing diesel exhaust fluid into the exhaust stream ahead of the selective catalytic reduction (SCR) catalyst. The SCR system uses that fine DEF mist to convert nitrogen oxides into harmless nitrogen and water vapor, keeping the generator compliant with Tier 4 Final emissions regulations. When the injector becomes clogged, leaks, or fails to open correctly, DEF dosing is disrupted — leading to elevated NOx output, active fault codes, and in many cases an automatic engine derate or shutdown that takes the generator offline until the fault is resolved.

For fitment questions or to confirm compatibility with your specific DCA generator serial number, contact the DHS Equipment parts team directly.

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.