The Multiquip 1J80818590 Catalyst Kit 2 Doc DCA40SSKU4F is a genuine OEM emissions catalyst assembly designed for the DCA40SSKU4F ultra-silent diesel generator. As a direct-from-manufacturer component, this kit meets the original engineering specifications for the DCA40SSKU4F Tier 4 Final emissions system, ensuring the generator stays compliant and operates as intended. DHS Equipment supplies this part as an authorized Multiquip OEM replacement, giving you confidence in both fit and function.
Key Features
- OEM Emissions Certification Match — Engineered to meet the exact catalytic conversion specifications required by the DCA40SSKU4F Tier 4 Final emissions control system.
- Direct-Fit Installation — Designed to integrate directly into the exhaust aftertreatment housing of the DCA40SSKU4F with no adaptation needed to the existing mounting points.
- Confirmed Fitment for DCA40SSKU4F — Validated specifically for the DCA40SSKU4F ultra-silent diesel generator; verify your model code before ordering.
- Sustained Generator Output Performance — A functioning catalyst assembly keeps exhaust backpressure within spec, protecting engine efficiency and preventing power derate conditions common when aftertreatment components degrade.
- Emissions Compliance Critical Component — Tier 4 Final generators are subject to emissions regulations on active job sites; replacing a failed or degraded catalyst with a genuine OEM kit helps maintain regulatory compliance for continued operation.
The catalytic converter assembly in a Tier 4 Final diesel generator is a core part of the exhaust aftertreatment system, responsible for chemically reducing harmful exhaust emissions — including nitrogen oxides and particulate matter — to levels required by EPA Tier 4 Final standards. When the catalyst degrades or becomes damaged, the generator may trigger fault codes, enter a derate mode that limits power output, or fail emissions compliance checks entirely. Replacing the catalyst kit with a genuine OEM component like the Multiquip 1J80818590 restores the aftertreatment system to its original operating condition and keeps the DCA40SSKU4F running at full rated capacity.
Part Details
| Part Number | 1J80818590 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Catalyst Kit 2 Doc DCA40SSKU4F |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA40SSKU4F |
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.
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