The Wacker Neuson Spray Bar is a genuine OEM component designed for the RD12-90, RD12A-90, RD16-90, and RD16-100 series tandem vibratory rollers. As a direct factory replacement, it restores the drum wetting system to original operating condition, ensuring consistent water distribution across both drums during asphalt compaction passes. This part is confirmed to fit multiple machine configurations across the RD12 and RD16 families, including standard, foldable ROPS, hydrostatic, and double-drum variants.
Key Features
- Genuine OEM Water Distribution Spec — Engineered to Wacker Neuson's original flow and spray pattern specifications, ensuring even drum coverage without hot spots or dry zones.
- Drop-In Replacement — Matches original mounting points and connection fittings on RD12 and RD16 series rollers for a straightforward swap during scheduled maintenance or field repair.
- Broad RD-Series Fitment — Verified compatible with RD12-90, RD12A-90, RD16-90, and RD16-100 tandem rollers across standard, hydrostatic, solid ROPS, and foldable ROPS configurations.
- Protects Asphalt Mat Quality — A functioning spray bar prevents material pickup on the drums, keeping compaction passes clean and the finished mat surface uniform and defect-free.
- Corrosion-Resistant Construction — Built to handle continuous water flow exposure in outdoor compaction environments, resisting the scale buildup and corrosion that degrade aftermarket alternatives over time.
The spray bar on a tandem vibratory roller delivers a continuous mist of water across the surface of each compaction drum. This water film prevents hot asphalt from sticking to the drum during paving and compaction work, which would otherwise cause tearing, material buildup, and an uneven mat finish. When the spray bar becomes clogged, cracked, or worn, uneven or absent water coverage leads directly to drum pickup and surface defects that can compromise the integrity of the finished pavement.
Part Details
| Part Number | 5000177458 |
|---|---|
| Old Part Number | 0177458 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Spray Bar |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD16-90 Vibratory Roller | RD16-90 | 5000620060, 5000620127, 5000620799 |
| RD 16-100 | RD16-100 | 5000620402, 5000620798 |
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| RD12-90 ROLLER, DOUBLE DRUM, SOLID ROPS | RD12-90 | 5000620059, 5000620321 |
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.
