Wacker Neuson 5100012321 Signal Horn

The Wacker Neuson Signal Horn is a genuine OEM signal horn designed for the full RD-series tandem roller lineup, including RD18, RD24, RD27, RD28, RD40, and RD45 models in standard, canopy, open ROPS, DPF, and electric configurations. As a factory-authorized component, this part is manufactured to the exact specifications of the original horn fitted at the time of production, ensuring correct electrical connection, sound output, and mounting compatibility right out of the box. The covers an extensive range of RD-series machines across multiple build generations and regional variants, making it the go-to replacement for fleet operators and service technicians working across mixed roller inventories. Order with confidence knowing you are installing the same part Wacker Neuson engineers specified for these machines.

Key Features

• OEM-Matched Electrical Output — Manufactured to the exact voltage and sound-level specification of the original signal horn, so audible output and circuit draw match what the machine was designed for.
• Direct Plug-In Replacement — Matches the original connector type and mounting configuration, allowing a straightforward swap with no bracket modification or wiring adaptation.
• Broad RD-Series Coverage — Fits RD18, RD24, RD27, RD28, RD40, and RD45 tandem rollers across standard, canopy, open ROPS, DPF, and electric variants, including US and SE regional builds.
• Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, carrying the same part number (5100012321) used in the OEM parts system for accurate identification and procurement.
• Site Safety Compliance — A functioning signal horn is required for safe machine operation on regulated worksites; replacing a failed unit with a genuine OEM component ensures the roller meets operator alert and safety standards.
• Multi-Generation Fitment — Compatible across numerous production series and build suffixes, making this a single reliable part number for workshops servicing a wide variety of RD-series roller configurations.

The signal horn on a tandem roller serves as the machine's primary audible warning device, alerting ground workers and pedestrians to the roller's presence and movements — particularly important during reversing or operation in congested paving environments. A failed or weak horn is not just an inconvenience; on many regulated construction and roadwork sites, a functioning audible warning device is a mandatory safety requirement. Replacing a faulty horn promptly with a genuine OEM unit like the Wacker Neuson 5100012321 restores the machine to full operational and compliance status.

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.