The Bomag 31780391 Hexagon Nut is a genuine OEM fastener designed for a wide range of Bomag compaction equipment, including BW-series tandem rollers, single drum rollers, pneumatic tyred rollers, and BC 771 refuse and landfill compactors. As a factory-sourced component, this hexagon nut delivers the exact thread specification, material grade, and dimensional tolerancing required for correct assembly. It is confirmed to fit models including the BW 184 AD, BW 180 AD, BW 212 D-3, BW 213 D-3, BW 178 D-3, BW 177 DH-3, BW 177 PDH-3, BW 213 PDH-3, BW 24 R, BC 771 RB, BC 771 RS, and C 850 C, among others. Order part number 31780391 from DHS Equipment to keep your Bomag machine properly fastened and field-ready.
Key Features
- Genuine OEM Fastener Grade — sourced directly from Bomag, this hexagon nut meets the exact torque rating, thread pitch, and material hardness specified for these assemblies
- Drop-In Replacement — dimensionally identical to the original, this nut installs without modification using standard tooling
- Broad Bomag Fitment — fits BW-series tandem rollers, single drum rollers, and pneumatic tyred rollers, as well as BC 771 RB and BC 771 RS refuse and landfill compactors, and C 850 C and C 560 B rollers
- Structural Integrity Assurance — a correctly torqued, properly spec'd nut prevents joint loosening under vibration loads — critical on compaction equipment subject to continuous dynamic stress
- Safety-Critical Fastener — improperly rated or mismatched fasteners can lead to joint failure in structural and drivetrain assemblies; using the correct OEM part number 31780391 eliminates that risk
A hexagon nut is a standard threaded fastener used throughout heavy equipment assemblies to secure bolted joints, mount components, and maintain structural connections. On compaction machines like Bomag rollers and landfill compactors, fasteners in vibration-exposed locations are subject to constant dynamic loading that can loosen or fatigue an incorrectly rated nut over time. Using the correct OEM-specified nut ensures the joint holds to the required clamp load, preventing component movement, wear at mating surfaces, and potential assembly failure in the field.
Part Details
| Part Number | 31780391 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Hexagon Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 184 AD | 00810713, 00810715, 00817514 |
| 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 |
| Refuse / Landfill Compactor | BC 771 RB | 00816025, 00817403 |
| Refuse / Landfill Compactor | BC 771 RS | 00817405 |
| 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 |
| 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 |
| 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 |
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.
