The Wacker Neuson is a genuine OEM Valve Extension designed for a wide range of RD-series tandem rollers, including the RD18-100 C, RD24-100 C, RD27-120 C, RD28-120 C, RD40-130, RD40-130 C, RD40-130 O, RD45-140, RD45-140 C, and RD45-140 O series machines. Sourced directly from Wacker Neuson, this part is manufactured to the same specification as the original component installed at the factory, ensuring a correct, drop-in fit without guesswork. Compatibility extends across multiple generation variants — including DPF,.3, and US-spec models — making one of the most widely applicable valve extension parts in the Wacker Neuson RD tandem roller lineup. When it's time to service or restore proper valve access on your roller, this is the part built for the job.
Key Features
- Genuine OEM Construction — Manufactured by Wacker Neuson to original design tolerances, ensuring consistent thread engagement and dimensional accuracy for a valve extension used in demanding compaction applications.
- Direct-Fit Replacement — Threads directly onto the existing valve stem as a like-for-like swap, with no machining, adapters, or workarounds needed to complete the installation.
- Broad RD-Series Compatibility — Fits RD18-100, RD24-100, RD27-120, RD28-120, RD40-130, and RD45-140 tandem roller families, including standard, C, O, DPF, .3-generation, and US-spec variants.
- Maintains Correct Valve Access — A properly fitted valve extension keeps inflation and pressure check points accessible at the correct reach, preventing improvised workarounds that can damage the valve core or stem over time.
- Verified OEM Part Number — Carries Wacker Neuson part number 5100012401, cross-referenced against a broad range of RD-series model and serial number ranges for confident fitment verification before ordering.
A valve extension is a small but functionally important component that lengthens a valve stem to make it reachable for inflation, deflation, or pressure checks — particularly where wheel well depth, drum clearance, or guard geometry limits direct access to the original stem. On tandem rollers like the Wacker Neuson RD series, maintaining easy, undamaged access to valve points is essential for keeping drum tire pressure or pneumatic circuit pressures correctly set. When a valve extension is missing, damaged, or cross-threaded, correct pressure maintenance becomes difficult or impossible, which can directly affect compaction consistency and machine performance on site.
Part Details
| Part Number | 5100012401 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Extension |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD40-130 Tandem Roller | RD40-130 | 5100011391 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| 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 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RD 18-100 C | RD18-100c | 5100047362, 5100055776 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD24-100c | RD24-100c | 5100047376 |
| RD28-120c | RD28-120c | 5100047377 |
| RD40-130c | RD40-130c | 5100047384 |
| RD45-140c | RD45-140c | 5100047385 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
| RD28-120c DPF | RD28-120c DPF | 5100047392 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RD28e-120c | RD28-120ce | 5100066734 |
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.
