The Multiquip 1J80818942 Catalyst Kit 1 Doc DCA40SSKU4F is a genuine OEM catalyst kit designed for the DCA40SSKU4F ultra-silent diesel generator. As a factory-sourced component, it ensures the exhaust aftertreatment system on the DCA40SSKU4F performs exactly as engineered. DHS Equipment supplies this part direct, so you can be confident you're getting the right fit for your machine. Verify your model against the DCA40SSKU4F fitment before ordering to confirm compatibility.
Key Features
- Genuine OEM Catalyst Assembly — Sourced directly from Multiquip, this kit meets the exact material and chemical-conversion specifications required for the DCA40SSKU4F exhaust aftertreatment system.
- Direct-Fit Replacement — Engineered to mount and connect to the existing exhaust pathway on the DCA40SSKU4F with no reworking of the surrounding hardware.
- Confirmed DCA40SSKU4F Fitment — Designed and validated specifically for the DCA40SSKU4F ultra-silent Tier 4 Final diesel generator in the DCA ultra-silent series.
- Maintains Emissions Compliance — A functioning catalyst is essential for the DCA40SSKU4F to meet Tier 4 Final exhaust emissions standards; replacing a degraded catalyst restores compliant operation on regulated worksites.
- Protects Downstream Exhaust Components — A correctly seated catalyst kit prevents unburned exhaust byproducts from fouling or damaging other components in the aftertreatment circuit.
The diesel oxidation catalyst (DOC) is a core component of the exhaust aftertreatment system on Tier 4 Final generators such as the DCA40SSKU4F. It works by converting harmful exhaust gases — primarily carbon monoxide and unburned hydrocarbons — into less harmful carbon dioxide and water vapor as exhaust passes through its coated substrate. When the catalyst degrades or becomes contaminated, the generator may fail emissions requirements, trigger fault codes, or cause the engine management system to derate output — making timely replacement critical to keeping the unit operational and compliant.
For fitment questions or help confirming this part is correct for your DCA40SSKU4F, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 1J80818942 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Catalyst Kit 1 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.
