The Bomag 78220201 Spray Bar is a genuine OEM component designed for BW 120 AD-3, BW 120 AD-4, and BW 125 AD-4 tandem rollers. Sourced directly from Bomag, this spray bar delivers an exact fit with no guesswork on installation or compatibility. It is confirmed for the full range of BW 120 and BW 125 AD-series tandem rollers covered by this part, giving contractors confidence when ordering. When it comes to the water distribution system on your roller, using a genuine OEM replacement ensures the drum wetting performance your machine was engineered to deliver.
Key Features
- Genuine OEM Water Distribution — manufactured to Bomag's original design specifications, ensuring consistent water flow and even drum coverage across the full working width
- Direct-Fit Replacement — engineered to match the original mounting points and spray nozzle layout of the BW 120 and BW 125 AD-series tandem rollers for a straightforward swap
- Confirmed Fitment — compatible with BW 120 AD-3, BW 120 AD-4, and BW 125 AD-4 tandem rollers, including multiple variant designations within those series
- Protects Surface Quality — a fully functioning spray bar keeps drums properly wetted, preventing asphalt from sticking and protecting the integrity of the mat during compaction passes
- Authentic Bomag Part — part number 78220201 is an authorized Bomag component, backed by DHS Equipment's genuine OEM sourcing for trusted replacement quality
The spray bar is part of the drum wetting system on a tandem roller, distributing water evenly across the drum surface during asphalt compaction. This continuous water film prevents hot mix asphalt from adhering to the drum, which would otherwise cause tearing, surface defects, and uneven mat density. When the spray bar becomes clogged, cracked, or damaged, water distribution becomes uneven or stops entirely — leading to asphalt pickup on the drum and compromised compaction results. Keeping this component in good working order is essential to maintaining mat quality and consistent roller performance on every pass.
Part Details
| Part Number | 78220201 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Spray Bar |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 120 AD-3 | 00817463, 00817831, 00817833 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 120 AD-4 | 00817689, 00818377, 00818469, 00818477, 00818593, 00818733, 00824173 |
| Tandem Roller | BW120 AD-3 | 00817849 |
| Tandem Roller | BW 125 AD-4 | 00817937, 00818473 |
| Tandem Roller | BW120AD 4 | 00818595, 00818871 |
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.
