The Bomag 05813229 Gear Pump is a genuine OEM component designed for the BW 177 D-4 single drum roller. Sourced directly through Bomag's authorized parts network, this gear pump matches the original unit's displacement, port configuration, and pressure rating — no guesswork on compatibility. It is the correct service replacement for BW 177 D-4 machines requiring hydraulic pump restoration, and it installs directly into the existing hydraulic circuit without modification to lines or fittings.
Key Features
- OEM-Matched Displacement and Porting — manufactured to the same volumetric displacement and port dimensions as the original, ensuring correct hydraulic flow and pressure output for the BW 177 D-4's drive and vibratory circuits.
- Direct-Fit Replacement — mounts to the original pump drive and hydraulic connections on the BW 177 D-4 single drum roller, allowing a straightforward swap during scheduled service or unplanned repair.
- Confirmed Fitment — verified for the Bomag BW 177 D-4 single drum roller using Bomag's OEM parts catalog under part number 05813229.
- Sustained Hydraulic Output — a correctly functioning gear pump maintains consistent flow to the drum drive and vibration system; a worn or failing pump causes sluggish drum response, vibration loss, and overheating of hydraulic fluid.
- Genuine Bomag OEM Quality — produced to Bomag's own tolerances for gear mesh clearance and seal material, supporting the pressure demands of heavy compaction work over the full service life of the pump.
A gear pump is the hydraulic heart of the BW 177 D-4 single drum roller, converting mechanical power from the engine into pressurized hydraulic flow that drives the drum propulsion, steering, and vibratory systems. It works by meshing rotating gears to trap and move fluid from the inlet to the outlet at a consistent, high-pressure rate. When a gear pump wears — through internal gear erosion, seal degradation, or contamination — flow volume drops, the machine loses drum drive force and vibration intensity, and the added heat generated by internal slippage accelerates wear throughout the entire hydraulic system.
Part Details
| Part Number | 05813229 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Gear Pump |
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.
