The Bomag 05804406 Flush Charge Pressure Valve is a genuine OEM component designed for BW 145 DH-3, BW 145 PDH-3, and C 825 C single drum rollers. Sourced directly from Bomag, this valve delivers an exact match to the original part — correct dimensions, pressure ratings, and connection points with no adaptation needed. It also fits the BW 145 DH 40, BW 145 PDH 40, BW145DH 40, and BW145PDH 40 single drum roller variants, making it a versatile hydraulic system service part across the BW 145 family and compatible HYPAC C-series machines. When it is time to restore your hydraulic circuit to proper operating condition, part number 05804406 is the correct OEM replacement to specify.
Key Features
- Genuine OEM Hydraulic Specification — manufactured to Bomag's exact pressure and flow tolerances for the flush charge circuit, ensuring the valve opens and closes at the correct set point every time
- Direct Drop-In Replacement — matches the original port sizing, thread pitch, and mounting configuration so this valve installs straight into the hydraulic circuit without reworking fittings or lines
- Broad BW 145 Family Coverage — confirmed fit for BW 145 DH-3, BW 145 PDH-3, BW 145-DH-3, BW 145 DH 40, BW 145 PDH 40, BW145DH 40, BW145PDH 40, BW145DH 3, BW145PDH 3, and C 825 C single drum rollers
- Protects the Hydrostatic Drive System — a correctly functioning flush charge pressure valve regulates loop flushing flow, keeping the hydrostatic transmission cool and clean; a failed or out-of-spec valve can allow heat and contamination to build up, accelerating wear on the pump and motor
- Hydraulic System Integrity — using the correct OEM-spec pressure valve prevents uncontrolled bypass flow that could compromise drum drive response and overall compaction performance on the job
The flush charge pressure valve is a critical component within the hydrostatic drive circuit of a single drum roller. Its job is to regulate the pressure at which excess hydraulic fluid is flushed from the closed loop, removing heat and particulates that would otherwise degrade the pump, motor, and internal seals over time. When this valve wears, sticks, or loses its calibrated set point, the transmission loop runs hotter than designed, compaction force becomes inconsistent, and internal drive components are put at risk of accelerated failure.
Part Details
| Part Number | 05804406 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Flush Charge Pressure Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 145 DH-3 | 00817481, 00817638 |
| Single Drum Roller | BW 145 PDH-3 | 00817483, 00817639 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Single Drum Roller | BW145DH 40 | 00818939, 00818941 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
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.
