The Bomag 31780176 V-Belt Tightener is a genuine OEM component designed for Bomag BW 184 AD tandem rollers and a broad range of BW-series single drum rollers including the BW 177 D-3, BW 177 DH-3, BW 178 D-3, BW 212 D-3, BW 213 D-3, BW 213 PDH-3, and BW 211-40. As a direct Bomag OEM part, this V-Belt Tightener is manufactured to the same specification as the original, ensuring it seats and tensions correctly without modification. Sourced directly through DHS Equipment, part number 31780176 is the verified replacement for any BW-series roller showing belt slip, improper tension, or tightener wear.
Key Features
- Genuine OEM Tensioning Precision — engineered to maintain the exact belt tension required for consistent drive performance on Bomag rollers, preventing the under- or over-tensioning that leads to premature belt wear
- Direct-Fit Replacement — matches the original mounting configuration, allowing straightforward installation on compatible BW-series tandem and single drum rollers
- Broad BW-Series Coverage — fits the BW 184 AD tandem roller and single drum rollers 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 PDH-3, and BW 211-40
- Drive System Protection — a properly functioning tightener keeps the V-belt engaged under load, protecting the drive system from slippage that can cause overheating or loss of compaction force
- Verified Part Number Fit — Bomag part number 31780176 cross-references directly to these machine models, giving you confidence you are ordering the correct tightener before the part ships
The V-Belt Tightener maintains the correct tension on the drive belt that transfers power from the engine to the compaction or propulsion system. When tension is too loose, the belt slips under load, reducing drum speed and compaction output; when it is too tight, it accelerates bearing and belt wear. A worn or seized tightener allows tension to fluctuate, leading to unpredictable performance, belt damage, and eventual drivetrain strain. Replacing a failed tightener with a genuine OEM part restores consistent belt engagement and keeps the roller operating at its rated output.
Part Details
| Part Number | 31780176 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | V-Belt Tightener |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 184 AD | 00810713, 00810715 |
| 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 |
| 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 |
| Single Drum Roller | BW 213 PDH-3 | 00817529 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | BW177D-3 | 00817586 |
| 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.
