The Bomag 92027422 Exciter Unit is a genuine OEM component designed for BW 190 AD-4 AM and BW 203 AD-4 AM tandem rollers. Sourced directly from Bomag, this exciter unit delivers the exact fit and function your machine requires, with no guesswork on compatibility. It is confirmed for use across BW 190 AD-4 AM, BW 203 AD-4 AM, and BW 203 AD-4 AM EU-Flex tandem rollers, covering both standard and EU-Flex configurations. When the original unit wears or fails, replacing it with the correct OEM part keeps your compaction performance exactly where it needs to be.
Key Features
- Genuine OEM Vibration Performance — manufactured to Bomag's original eccentric mass and bearing specifications, so drum amplitude and frequency output match the machine's design intent from day one
- Direct-Mount Replacement — engineered to bolt into the drum assembly of compatible BW-series tandem rollers using the original mounting interface, streamlining installation in the field
- Confirmed Fitment — compatible with BW 190 AD-4 AM, BW 203 AD-4 AM, and BW 203 AD-4 AM EU-Flex tandem rollers, including the EU-Flex variant
- Restored Compaction Output — a correctly functioning exciter unit delivers consistent drum vibration, enabling the machine to reach target density in asphalt and soil without multiple passes
- OEM Part Number Assurance — ordering by part number 92027422 confirms you are receiving the correct Bomag-authorized unit, eliminating the risk of mismatched components
The exciter unit is the core vibration-generating assembly inside a roller drum. It uses a rotating eccentric mass driven by a hydraulic motor to produce the rapid oscillations that transfer compactive force into the material beneath the drum. Without a properly functioning exciter unit, drum vibration drops off or ceases entirely, leaving the machine unable to achieve the density results required on paving and compaction passes. A worn or failed unit typically presents as reduced amplitude, abnormal drum noise, or complete loss of vibration — all of which compromise finished mat quality and job productivity.
Part Details
| Part Number | 92027422 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Exciter Unit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 190 AD-4 AM | 00818309, 00824021 |
| Tandem Roller | BW 203 AD-4 AM | 00818591, 00824019, 00825067 |
| Tandem Roller | BW 203 AD-4 AM EU-Flex | 00824397 |
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.
