The Bomag 31780612 Sealing Washer is a genuine OEM sealing washer designed for a wide range of Bomag single drum rollers, tandem rollers, and pneumatic tyred rollers. Sourced directly from Bomag, this component delivers an exact match to the original part it replaces, ensuring a dependable seal wherever it is installed. This sealing washer is confirmed to fit models including the BW 177 D-3, BW 177 DH-3, BW 177 PDH-3, BW 178 D-3, BW 212 D-3, BW 213 D-3, BW 213 DH-3 USA, BW 213 PDH-3, BW 213 PDH-3 USA, BW 211-40, BW 180 AD, BW 184 AD, BW 184 AD-2, BW 184 AD-2 AM, BW 24 R, C 560 B, and C 850 C rollers. When a sealing washer fails, fluid leaks and contamination follow quickly — replacing it with a genuine OEM part keeps joints and fittings properly sealed and the machine operating as intended.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Bomag's original material and dimensional specifications, delivering the compression and fluid-barrier performance this washer type demands
- Drop-In Replacement — matches the original sealing washer in profile and bore, seating correctly against mating surfaces without rework or modification
- Broad Roller Compatibility — fits Bomag single drum rollers including the BW 177 D-3, BW 213 D-3, and BW 211-40; tandem rollers including the BW 184 AD and BW 184 AD-2; and pneumatic tyred rollers including the BW 24 R and C 560 B
- Leak Prevention — a correctly seated sealing washer stops fluid seepage at threaded joints and fittings, protecting hydraulic and fluid systems from contamination and pressure loss
- Fluid System Safety — a failed or improperly rated washer can allow hydraulic fluid or fuel leaks that create fire risk and unsafe operating conditions; using the correct OEM-specification part mitigates that risk
A sealing washer sits between a threaded fastener or fitting and its mating surface, forming a leak-proof barrier that prevents fluid from escaping through the joint. On compaction rollers, these washers are found throughout hydraulic, fuel, and cooling systems, where maintaining a tight, clean seal is critical to keeping system pressure stable and preventing fluid loss. When a sealing washer becomes worn, crushed, or cracked, even a minor leak can escalate into system contamination or pressure drop — making timely replacement with a correct OEM part like part number 31780612 an important part of routine service.
Part Details
| Part Number | 31780612 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Sealing Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Single Drum Roller | BW 212 D-3 | 00815325 |
| Single Drum Roller | BW 213 D-3 | 00815329, 00817522 |
| Single Drum Roller | BW 178 D-3 | 00815515 |
| Single Drum Roller | BW 177 DH-3 | 00817505, 00817751 |
| Single Drum Roller | BW 177 DH 3 | 00817506 |
| Single Drum Roller | BW 177 PDH-3 | 00817508 |
| Tandem Roller | BW 180 AD | 00817513 |
| Tandem Roller | BW 184 AD | 00817514 |
| Single Drum Roller | BW 213 PDH-3 | 00817529 |
| Pneumatic Tyred Roller | BW 24 R | 00817552, 00817854 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | C 850 C | 00817583 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Pneumatic Tyred Roller | C 560 B | 00817598 |
| Tandem Roller | BW 184 AD-2 AM | 00817600 |
| Single Drum Roller | BW 213 DH-3 USA | 00817671 |
| Single Drum Roller | BW 213 PDH-3 USA | 00817673 |
| Tandem Roller | BW 184 AD-2 | 00817841 |
| Single Drum Roller | BW 211-40 | 00826367 |
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.
