The Bomag 05741809 Governor Spring is a genuine OEM component designed for Bomag BW 170 AP AM, BW 174 AP, BW 174 ACP, BW 174 ACP-AM, BW 174 AP-AM, BW 174 AP-4, BW 174 AP-4 AM, BW 174 AP-4 AM PB, and BW 174 AP-4 PB tandem rollers. Sourced directly from Bomag, this governor spring meets the same specifications as the original part installed at the factory, ensuring consistent engine speed regulation across the full range of covered machines. As a genuine OEM replacement, it drops in without modification, restoring your machine's throttle response and speed control to proper working order. When the original spring weakens or fails, this part is the correct, direct replacement to get your tandem roller back running as intended.
Key Features
- OEM-Grade Spring Tension — manufactured to the original tension specification critical for precise governor operation, so engine speed holds steady under varying load conditions
- Direct Replacement Fit — engineered to the same geometry and hook configuration as the original, allowing straightforward installation in the governor assembly
- Broad Tandem Roller Coverage — fits BW 170 AP AM, BW 174 AP, BW 174 ACP, BW 174 ACP-AM, BW 174 AP-AM, BW 174 AP-4, BW 174 AP-4 AM, BW 174 AP-4 AM PB, and BW 174 AP-4 PB tandem rollers
- Consistent Engine Speed Control — a correctly tensioned governor spring maintains the set RPM during compaction passes, protecting asphalt mat quality and machine efficiency
- Genuine Bomag OEM Part — carries the Bomag part number 05741809, ensuring you receive the exact component specified for these machines, not a generic substitute
The governor spring is a small but essential component within the engine's mechanical governor assembly. It applies a calibrated return force that works against centrifugal flyweights to regulate engine RPM — when the engine speeds up or slows under load, the governor spring helps bring it back to the operator-set speed. A worn, stretched, or broken governor spring causes erratic engine speed, hunting at idle, or an inability to hold steady RPM under load, all of which directly affect compaction consistency and machine control on asphalt paving and finishing work.
Part Details
| Part Number | 05741809 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Governor Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 170 AP AM | 00818515 |
| Tandem Roller | BW 174 AP | 00818517 |
| Tandem Roller | BW 174 ACP | 00818519 |
| Tandem Roller | BW 174 ACP-AM | 00818535 |
| Tandem Roller | BW 174 AP-AM | 00818537 |
| Tandem Roller | BW 174 AP-4 AM | 00818655, 00818845, 00824543 |
| Tandem Roller | BW 174 AP-4 | 00818657, 00818847, 00824545 |
| Tandem Roller | BW 174 AP-4 AM PB | 00818971 |
| Tandem Roller | BW 174 AP-4 PB | 00818973 |
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.
