The Bomag 05546823 O-Ring is a genuine OEM sealing component designed for BW 190 AD-4 AM and BW 203 AD-4 AM tandem rollers, including the BW 203 AD-4 AM EU-Flex variant. Sourced directly from Bomag, this O-Ring matches the original material grade, durometer, and dimensional tolerances required for a proper seal. It is a direct replacement for the factory-installed component, ensuring correct fit in the intended sealing groove without modification. Operators running any of these tandem roller variants can order with confidence that part number 05546823 is the correct specification for their machine.
Key Features
- OEM-Grade Sealing Material — manufactured to Bomag's original compound and durometer specification, delivering the compression and chemical resistance required for this application
- Exact Dimensional Match — cross-section diameter and inner diameter conform to the original sealing groove geometry, ensuring correct installation without stretching or gap
- Broad Variant Coverage — fits the BW 190 AD-4 AM, BW 203 AD-4 AM, and BW 203 AD-4 AM EU-Flex tandem rollers
- Leak Prevention — a correctly seated O-Ring maintains system pressure and prevents fluid ingress or egress, keeping hydraulic or fluid circuits functioning as designed
- Genuine Bomag Part — supplied as an authentic OEM component, backed by Bomag's part number 05546823 for straightforward verification against your machine's service documentation
An O-Ring is a circular elastomeric seal fitted into a groove between two mating surfaces or along a shaft to prevent fluid or air from passing between them. In tandem rollers like the BW 190 AD-4 AM and BW 203 AD-4 AM series, O-Rings appear throughout hydraulic circuits, drum drive assemblies, and fluid reservoirs, where they maintain pressure integrity and prevent contamination. When an O-Ring degrades, flattens, or is cut during installation, the result is a leak that can lead to hydraulic fluid loss, system pressure drop, or accelerated wear on surrounding components — making prompt replacement with the correct-specification part essential.
Part Details
| Part Number | 05546823 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 190 AD-4 AM | 00817825, 00818309, 00824021 |
| Tandem Roller | BW 203 AD-4 AM | 00817837, 00818591, 00824019 |
| 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.
