The Multiquip M3331402604 is a genuine OEM DEF Tank Hose designed for the DCA-series super-silent and diesel-powered generator lineup, including DCA180SSJU4F, DCA220SSJU4F2, DCA300SSJU4F2, and DCA150SSJU4F2 models. As a direct Multiquip OEM part, M3331402604 is manufactured to the exact material and dimensional standards required for proper DEF (Diesel Exhaust Fluid) routing on these Tier 4 diesel generators. Sourcing the correct hose matters on Tier 4-compliant machines — an ill-fitting or incompatible hose can disrupt the selective catalytic reduction (SCR) system and compromise emissions compliance. DHS Equipment stocks this part to help you get your generator back in service with confidence.
Key Features
- DEF-Resistant Hose Material — Constructed to withstand continuous contact with Diesel Exhaust Fluid, which is highly corrosive to standard rubber and incompatible materials.
- Genuine OEM Sourcing — Supplied directly by Multiquip, this hose matches the original routing path, end fittings, and length specified for the DCA-series generator DEF system.
- Broad DCA-Series Compatibility — Confirmed fitment across DCA150SSJU4F2, DCA180SSJU4F, DCA220SSJU4F2, and DCA300SSJU4F2, covering both 50Hz and 60Hz configurations.
- SCR System Integrity — A correctly functioning DEF hose maintains uninterrupted fluid delivery to the aftertreatment system, keeping the generator operating within Tier 4 Final emissions standards.
- Emissions Compliance Critical — On Tier 4 diesel generators, a cracked, kinked, or leaking DEF hose can trigger fault codes, derate engine output, or force a machine shutdown — making prompt replacement essential.
The DEF Tank Hose carries Diesel Exhaust Fluid from the onboard DEF storage tank to the selective catalytic reduction (SCR) aftertreatment system. On Tier 4 Final diesel generators like the DCA-series, DEF injection is required to reduce nitrogen oxide (NOx) emissions to legally compliant levels. When this hose degrades, leaks, or loses its seal, DEF flow is interrupted — which can cause the engine control system to derate power output or initiate a protective shutdown until the fault is resolved. Replacing a worn or damaged DEF Tank Hose promptly restores full generator output and keeps the machine in compliance.
Part Details
| Part Number | M3331402604 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | DEF Tank Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA300SSJU4F2 |
| Diesel Powered Generators | DCA150SSJU4F2 |
| Diesel Powered Generators | DCA180SSJU4F |
| Diesel Powered Generators | DCA220SSJU4F2 |
| Diesel Powered Generators | DCA220SSJU4F2 (60Hz) |
| Diesel Powered Generators | DCA180SSJU4F (60HZ) |
| Diesel Powered Generators | DCA300SSJU4F2 60Hz |
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.
