The Wacker Neuson Reducing Piece is a genuine OEM component designed for the RD40-130 and RD45-140 series tandem rollers, including C and O variants. As a direct OEM part sourced through Wacker Neuson's authorized supply chain, it is manufactured to the same specification as the original fitted at the factory. Confirmed fitment covers the full RD40-130 and RD45-140 tandem roller family, giving operators and service technicians confidence that is the correct part before ordering.
Key Features
- OEM-Grade Dimensional Accuracy — Manufactured to the original bore and thread tolerances required for a reducing piece, ensuring a secure, leak-free transition between mismatched fittings or line sizes.
- Drop-In Connection — Engineered to connect directly to the existing ports or lines without reworking adjacent fittings, keeping installation straightforward for service technicians.
- Broad RD Series Fitment — Confirmed for the full RD40-130 and RD45-140 tandem roller family, including standard, C, and O configurations across all six listed model variants.
- System Integrity Under Pressure — A correctly seated reducing piece maintains consistent flow and pressure through the circuit it serves; a worn or improperly sized piece risks flow restriction, pressure loss, or fluid leakage that can affect roller operation.
- Genuine Wacker Neuson OEM Part — Part number 5100024938 is an authentic Wacker Neuson component, not a generic substitute, so fit and material grade match what the machine was built with.
A reducing piece is a transition fitting used to connect two ports, hoses, or lines of different sizes within a fluid or hydraulic circuit. It allows the system to route flow between components that do not share the same thread size or bore diameter without requiring custom adapters or line modifications. When a reducing piece fails — through cracking, thread damage, or seal degradation — it can cause fluid leaks, pressure imbalances, or circuit failures that interrupt normal machine operation and may lead to broader system damage if left unaddressed.
Part Details
| Part Number | 5100024938 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Reducing Piece |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
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.
