Wacker Neuson 5100011616 Relay

The Wacker Neuson Relay is a genuine OEM relay designed for the RD18, RD24, RD27, RD28, RD40, and RD45 series tandem rollers, as well as the RC110 and RC110P compactors. Sourced directly through Wacker Neuson's authorized parts program, this is an exact-match component built to the same electrical specifications as the original unit installed at the factory. It covers an extensive range of configurations including standard, C, O, DPF, US, and SE variants across multiple generations of Wacker Neuson compaction equipment. When your relay fails, getting the right part the first time keeps your machine running as designed.

Key Features

• Correct Electrical Specification — Manufactured to match the switching capacity, coil voltage, and contact rating of the original relay, ensuring proper circuit behavior across all supported machines.
• Genuine OEM Component — Supplied as an authorized Wacker Neuson OEM part, identical to the relay installed during original equipment assembly.
• Direct Plug-In Replacement — Designed to seat and connect into the existing relay socket without modification, simplifying installation in the field or workshop.
• Broad Model Coverage — Fits RD18, RD24, RD27, RD28, RD40, and RD45 tandem roller series plus RC110 and RC110P compactors, spanning standard, C, O, DPF, SE, and US configurations.
• Protects Downstream Electrical Systems — A properly functioning relay correctly isolates and switches circuits, preventing voltage spikes or uncontrolled current draw that can damage control modules and wiring harnesses.
• Electrical Safety Assurance — Using the correct OEM-rated relay in compaction equipment electrical circuits reduces the risk of intermittent faults, unintended circuit activation, or relay failure under load.

A relay is an electrically operated switch that uses a low-current control signal to open or close a higher-current circuit within the machine. In compaction equipment like Wacker Neuson tandem rollers, relays are used to control key functions such as engine starting circuits, vibration systems, and auxiliary electrical loads. When a relay fails, the circuit it controls may stop working entirely, behave intermittently, or in some cases remain permanently closed, which can cause components to stay energized when they should be off and lead to further electrical damage.

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.