The Bomag 05548021 Union is a genuine OEM component designed for Bomag BW 1050 T, BW 650 T, BW 850 T, BW 850 TR, and BW 85 T trench compactors. Sourced directly from Bomag, this union delivers the exact fit and material spec required for these machines. If you're servicing any of the BW T-series trench compactors listed above, part number 05548021 is the correct, catalog-verified replacement. Trust the OEM part to restore the connection as originally engineered.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Bomag's original thread and bore specifications, ensuring a leak-free, pressure-rated connection on your trench compactor's fluid or hydraulic circuit
- Direct Drop-In Replacement — matches the original union's dimensions and thread form exactly, so installation requires no reworking of fittings or adjacent lines
- Verified BW T-Series Coverage — confirmed fitment across the BW 85 T, BW 650 T, BW 850 T, BW 850 TR, and BW 1050 T trench compactors
- Fluid System Reliability — a correctly functioning union maintains consistent flow and pressure in the connected circuit; a worn or damaged union risks leaks that degrade compaction performance and can cause component damage
- Leak-Free Fluid Safety — proper sealing at every union point protects operators and the surrounding environment from uncontrolled fluid release — making OEM specification critical for hydraulic and fuel system fittings
A union is a threaded fitting used to join two sections of pipe or hose within a machine's fluid circuit, allowing the connection to be made and broken without disturbing the rest of the line. On Bomag trench compactors, unions like this one are typically found in hydraulic or fuel delivery systems where serviceability is required. When a union corrodes, cracks, or develops thread damage, it can allow fluid to escape under pressure, leading to system pressure loss, overheating, or contamination — all of which compromise the machine's compaction output and can accelerate wear on downstream components.
Part Details
| Part Number | 05548021 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Union |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Trench Compactor | BW 1050 T | 00815203 |
| Trench Compactor | BW 650 T | 00815202 |
| Trench Compactor | BW 850 T | 00811652 |
| Trench Compactor | BW 850 TR | 00815210 |
| Trench Compactor | BW 85 T | 00815204 |
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.
