Wacker Neuson 5100078832 Def Line

The Wacker Neuson Def Line is a genuine OEM component designed for the RC110 ROPS, RC110 CAB, RC110p ROPS, and RC110p CAB compact track loaders. As a direct OEM part, it is manufactured to the exact specifications required by Wacker Neuson, ensuring a correct, hassle-free installation. Sourced straight from the Wacker Neuson parts network, the delivers the fit and function your machine demands to keep its DEF system operating properly.

Key Features

• OEM-Spec DEF Compatibility — Manufactured from materials rated to handle diesel exhaust fluid without degradation, swelling, or contamination of the DEF system.
• Direct-Fit Replacement — Engineered to match the original routing, connection points, and line diameter of the factory DEF line for a clean, secure swap.
• Broad RC110 Series Coverage — Confirmed fitment across RC110 ROPS, RC110 CAB, RC110p ROPS, and RC110p CAB models, covering both standard and cab-equipped configurations.
• Protects DEF Dosing Accuracy — A correctly functioning DEF line maintains consistent fluid delivery to the SCR system, preventing fault codes, derate conditions, and failed emissions compliance.
• Emissions System Integrity — The DEF line is a critical link in the aftertreatment system; using a genuine OEM replacement helps maintain correct SCR function and keeps the machine within emissions compliance requirements.

The DEF (Diesel Exhaust Fluid) line carries urea solution from the DEF tank to the selective catalytic reduction (SCR) system, where it is injected into the exhaust stream to break down harmful nitrogen oxide emissions. A cracked, kinked, or failed DEF line disrupts fluid flow, which can trigger warning lights, power derate, or a full machine shutdown to protect the aftertreatment system. Replacing a worn or damaged line promptly restores proper DEF delivery and keeps the machine running at full capacity without emissions-related interruptions.

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.