Bomag 05902157 Pressure Relief Valve

The Bomag 05902157 Pressure Relief Valve is a genuine OEM component designed for a wide range of Bomag tandem rollers, single drum rollers, walk-behind rollers, a pneumatic tyred roller, and recycler/stabilizers. As a direct OEM replacement, this valve is built to the exact tolerances and pressure specifications required by Bomag hydraulic systems, ensuring proper regulation and protection across every compatible machine. This part fits the BW 120 AD tandem roller, BW 213 D and BW 212 D-2 single drum rollers, BW 172 D-2 and BW 142 D-2 single drum rollers, BW 12 R pneumatic tyred roller, BW 75 AD and BW 75 AD-2 walk-behind rollers, and the MPH 121, MPH 122, and MPH 122-2 recycler/stabilizers. When hydraulic system integrity matters, specifying genuine Bomag part number 05902157 eliminates the guesswork of aftermarket sourcing.

Key Features

• OEM-Calibrated Pressure Regulation — manufactured to Bomag's exact cracking-pressure specification, ensuring the hydraulic circuit opens and relieves at precisely the correct threshold for safe, efficient operation.
• Drop-In Hydraulic Replacement — machined to match the original port threads, body dimensions, and sealing surfaces so this valve installs directly without rework or adaptation.
• Broad Bomag Fleet Coverage — fits BW 120 AD tandem rollers, BW 213 D, BW 172 D-2, BW 142 D-2, and BW 212 D-2 single drum rollers, BW 75 AD and BW 75 AD-2 walk-behind rollers, BW 12 R pneumatic tyred roller, and MPH 121, MPH 122, and MPH 122-2 recycler/stabilizers.
• Hydraulic System Protection — a correctly functioning pressure relief valve prevents dangerous over-pressurization events; a failed or stuck valve risks pump cavitation, hose failure, and structural damage to hydraulic actuators.
• Pressure Circuit Safety — this valve is a critical safeguard in the hydraulic circuit; using a genuine OEM unit rated to the correct relief pressure maintains the integrity of the entire system under full working load.

A pressure relief valve is the hydraulic system's primary overpressure safeguard. It sits within the hydraulic circuit and opens automatically when fluid pressure climbs above a set limit, diverting flow back to the reservoir and protecting pumps, hoses, cylinders, and motors from damage caused by pressure spikes. When this valve wears, sticks open, or fails to seat correctly, the hydraulic system either loses working pressure — causing sluggish or non-responsive drum drive, vibration, or steering functions — or fails to relieve excess pressure, putting the entire circuit at risk of a catastrophic failure. Replacing a faulty valve with a genuine Bomag 05902157 restores the precise relief point the system was engineered around.

Part Details

Compatibility & Fitment

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.

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