The Bomag 05722129 Governor Spring is a genuine OEM component designed for a range of Bomag vibratory plates, reversible vibratory plates, and walk-behind light rollers. Sourced directly through authorized Bomag supply channels, this governor spring meets the exact engineering tolerances specified for the original application. This part fits the BP 20/48 D and BP 23/48 D vibratory plates, the BPR 30/38 D reversible vibratory plate, and the BW 71 E walk-behind light roller. Choosing a genuine OEM replacement ensures the engine governor system operates exactly as intended, preserving throttle response and engine protection across every compaction cycle.
Key Features
- Genuine OEM Spring Rate — manufactured to the exact tension and load specification required for correct governor operation, ensuring the engine responds accurately under varying compaction loads
- Direct Drop-In Replacement — engineered to the original hook geometry and coil dimensions, this governor spring installs directly into the existing governor linkage assembly without alteration
- Broad Bomag Fitment — compatible with the BP 20/48 D and BP 23/48 D vibratory plates, the BPR 30/38 D reversible vibratory plate, and the BW 71 E walk-behind light roller
- Engine Speed Stability — a correctly tensioned governor spring maintains steady RPM under load, supporting consistent compaction output and preventing engine over-speed or under-speed conditions
- Fuel System Integrity — as a direct part of the fuel governor linkage, a worn or broken governor spring can cause uncontrolled throttle behavior; replacing it with part number 05722129 restores safe, predictable engine control
The governor spring is a critical component within the engine's mechanical governor assembly, responsible for applying the return tension that balances centrifugal flyweight force against the throttle linkage. This balance is what holds engine speed steady as compaction loads fluctuate. When the spring fatigues, stretches, or breaks, the governor loses the ability to regulate RPM accurately — resulting in erratic engine speed, loss of compaction power, or in some cases an uncontrolled surge in engine output. Replacing a worn governor spring promptly with a genuine OEM part restores stable, predictable engine behavior and keeps the machine performing at its rated capacity.
Part Details
| Part Number | 05722129 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Governor Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Plate | BP 20/48 D | 00817422, 00819915 |
| Vibratory Plate | BP 23/48 D | 00817424, 00819922 |
| Reversible Vibratory Plate | BPR 30/38 D | 00855721, 00813345, 00813343 |
| Walk-Behind / Light Roller | BW 71 E | 00817561 |
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.
