The Bomag 05581020 Impeller is a genuine OEM component designed for the BW 177 D-4 single drum roller. Sourced directly from Bomag, this impeller matches the original part in every dimension and material spec, ensuring it seats and performs exactly as the factory intended. If your BW 177 D-4 is running hot or showing signs of cooling system trouble, replacing a worn impeller with part number 05581020 is the right first step.
Key Features
- Genuine OEM Cooling Precision — manufactured by Bomag to exact blade geometry and material tolerances, ensuring the correct flow rate and coolant pressure for the BW 177 D-4 engine cooling circuit
- Direct-Fit Replacement — engineered to match the original mounting bore, shaft interface, and blade profile so this impeller drops into the cooling housing without modification
- Confirmed Fitment — verified for the Bomag BW 177 D-4 single drum roller; use part number 05581020 to confirm compatibility before ordering
- Sustained Cooling Capacity — a correctly functioning impeller maintains coolant circulation at the volume and pressure the engine demands, protecting against overheating during sustained compaction work
- Long Service Life — OEM construction means the impeller is built from the same materials as the original, resisting cavitation wear and corrosion over extended service intervals
The impeller is the rotating component inside the water pump that draws coolant from the radiator and pushes it through the engine block and cylinder head. Its spinning blades generate the flow that carries heat away from critical engine components, keeping operating temperatures within a safe range during continuous use. When an impeller wears, corrodes, or its blades erode, coolant flow drops — leading to elevated engine temperatures, reduced power output, and the risk of serious heat-related engine damage if left unaddressed.
Part Details
| Part Number | 05581020 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Impeller |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 177 D-4 | 00818451 |
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.
