The Wacker Neuson 5100078823 DEF Dosing Unit Pump is a genuine OEM component designed for RC110 and RC110p single-drum soil compactors, covering both ROPS and CAB configurations. As a direct OEM replacement, this part is sourced from Wacker Neuson and built to the exact specifications of the original unit — ensuring proper integration with the machine's diesel exhaust fluid delivery system. Confirmed fitment spans the RC110 ROPS, RC110 CAB, RC110p ROPS, and RC110p CAB variants, making part number 5100078823 the correct choice across the full RC110 family.
Key Features
- Precise DEF Delivery Specification — manufactured to OEM flow-rate and pressure tolerances, ensuring accurate dosing of diesel exhaust fluid into the aftertreatment system.
- Genuine OEM Sourcing — supplied directly through Wacker Neuson's parts network, identical in form and function to the pump installed at the factory.
- Direct Plug-In Replacement — engineered to connect directly to the existing DEF lines and harness on RC110-series machines without adaptation.
- Full RC110 Family Coverage — fits RC110 ROPS, RC110 CAB, RC110p ROPS, and RC110p CAB single-drum soil compactors in a single part number.
The DEF Dosing Unit Pump is the heart of the selective catalytic reduction (SCR) emissions system on diesel-powered compaction equipment. It draws diesel exhaust fluid from the onboard tank and delivers a precisely metered quantity into the exhaust stream, where it reacts with exhaust gases to reduce nitrogen oxide emissions in line with regulatory standards.
Part Details
| Part Number | 5100078823 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | DEF Dosing Unit Pump |
Compatibility & Fitment
| Name | Models | Machine Number |
|---|---|---|
| RC110 CAB | RC110 CAB | 5100067705 |
| RC110 ROPS | RC110 ROPS | 5100067704 |
| RC110p CAB | RC110p CAB | 5100067707 |
| RC110p ROPS | RC110p ROPS | 5100067706 |
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.
