The Wacker Neuson Water Tank is a genuine OEM Water Tank designed for the RD40-130 and RD45-140 series tandem rollers, including Standard, C, O, and US variants across multiple production generations. As a factory-sourced component, it meets the exact material and dimensional standards used in original production, ensuring a direct, hassle-free installation. This part is confirmed to fit a wide range of RD-series roller configurations, making it the dependable choice when it's time to restore your machine's water system to full working order. Keep your compaction operation running smoothly by replacing a damaged or failed tank with the correct OEM part the first time.
Key Features
- OEM-Grade Construction: — Manufactured to Wacker Neuson's original material and capacity specifications, ensuring the tank holds and supplies water at the volume the drum wetting system demands.
- Drop-In Replacement: — Engineered to match the original mounting points and connection interfaces on RD-series rollers, so installation follows the standard service procedure without modification.
- Broad RD-Series Fitment: — Compatible with RD40-130 and RD45-140 tandem rollers across Standard, C, O, and US configurations, covering multiple production series including .3 variants.
- Sustained Drum Wetting Performance: — A properly functioning water tank keeps the roller drums continuously wetted during asphalt and soil compaction, preventing material sticking and preserving smooth drum surfaces.
- Genuine Wacker Neuson Part: — Sourced directly from Wacker Neuson, part number 5100012662 carries the manufacturer's quality assurance and is traceable to your specific roller model for accurate fitment confidence.
The water tank on a tandem roller serves as the reservoir that feeds the drum wetting system, supplying a controlled flow of water to keep both front and rear drums moist during operation. This moisture barrier prevents hot asphalt from adhering to the drum surface, which protects the mat finish and maintains consistent compaction results. When the tank cracks, leaks, or fails to hold sufficient volume, the drums run dry — leading to material pickup, surface tearing, and costly rework on the finished mat.
Part Details
| Part Number | 5100012662 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Tank |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| 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 |
| 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 |
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.
