Wacker Neuson 5100012658 Steering Unit + Connection Plate

The Wacker Neuson Steering Unit + Connection Plate is a genuine OEM component designed for the RD40-130 and RD45-140 series tandem rollers, including standard, C, O, DPF, and US variants. As a direct OEM part, the is produced to the same specifications as the original unit your machine left the factory with, ensuring proper fit and function across the full range of compatible roller configurations. This assembly covers an extensive fitment range — from early RD40-130 and RD45-140 builds through to DPF-compliant variants — making it a dependable solution for operators maintaining multiple machines in a fleet.

Key Features

• Genuine OEM Hydraulic Integrity — Manufactured by Wacker Neuson to exact original tolerances, maintaining proper steering response and hydraulic circuit integrity critical to this type of steering assembly.
• Direct Assembly Replacement — Supplied as a complete steering unit and connection plate assembly, allowing installation as a single matched unit without sourcing components separately.
• Broad RD-Series Fitment — Compatible with RD40-130 and RD45-140 tandem rollers across standard, C, O, US, .3, and DPF configurations, covering a wide span of production variants.
• Restored Steering Precision — A worn or damaged steering unit causes sluggish, inconsistent drum articulation; replacing it with part 5100012658 restores accurate directional control essential for quality compaction passes.
• Operator Safety Relevance — Steering system integrity directly affects machine control on grade and confined job sites; using the correct OEM assembly ensures the steering circuit performs as engineered and reduces the risk of unintended machine movement.

The steering unit on a tandem roller is the hydraulic-mechanical assembly responsible for translating operator input into controlled articulation or steering movement of the drum chassis. It works in conjunction with the connection plate to link the steering circuit to the machine's hydraulic system, ensuring smooth and responsive directional changes during compaction work. When this assembly wears, leaks, or fails, operators experience reduced steering authority, uneven compaction patterns, and potential loss of machine control — making prompt replacement with a correctly specified OEM part essential to keeping the roller performing safely and accurately.

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.