The Bomag 31780157 Starter is a genuine OEM component designed for a wide range of Bomag tandem rollers, single drum rollers, and pneumatic tyred rollers. Sourced directly from Bomag, this starter delivers the exact fit and electrical compatibility your machine requires — no guesswork, no adaptation. Compatible models include the BW 184 AD and BW 180 AD tandem rollers, BW 177 D-3, BW 177 DH-3, BW 178 D-3, BW 212 D-3, BW 213 D-3, BW 213 PDH-3, BW 177 PDH-3 single drum rollers, BW 24 R pneumatic tyred roller, and C 850 C and C 560 B rollers, among others. As a genuine OEM part, it meets the original engineering specifications of the machines it serves, giving you confidence in every cold crank.
Key Features
- OEM Electrical Specification — built to the correct voltage, torque output, and pinion engagement spec for Bomag roller engines, ensuring clean, reliable cranking from the first turn of the key
- Direct Bolt-On Replacement — matches the original mounting configuration and connector interface, allowing straightforward installation without reworking brackets or wiring
- Broad Roller Coverage — fits Bomag BW-series tandem rollers, single drum rollers, and pneumatic tyred rollers, including the BW 184 AD, BW 213 D-3, BW 177 PDH-3, BW 24 R, and C 850 C, among others
- Genuine OEM Quality — manufactured to Bomag's own standards with the correct armature windings, solenoid rating, and drive gear geometry for long service life in demanding compaction environments
- Ignition System Integrity — a failing starter can cause hard starts, excessive battery drain, and unexpected downtime on the job; replacing with part number 31780157 restores proper engine start function and protects the surrounding electrical system
The starter is the electric motor responsible for cranking the engine to initiate combustion at startup. When the operator turns the ignition key, the starter solenoid engages the drive pinion with the engine's ring gear and draws high current from the battery to spin the engine over until it fires. A worn or failed starter typically presents as slow cranking, a single click with no engine movement, or complete failure to engage — any of which will take a roller out of service immediately. Replacing a degraded starter with a correct OEM unit restores full cranking torque and protects the battery and flywheel ring gear from the additional strain caused by a struggling motor.
Part Details
| Part Number | 31780157 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Starter |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 184 AD | 00810713, 00810715, 00817514 |
| 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 |
| 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 |
| 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 |
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.
