The Wacker Neuson Governor Spring is a genuine OEM component designed for a wide range of Wacker Neuson equipment, including PT3 trash pumps, GP4000 portable generators, PDT and PDI diaphragm pumps, PG dewatering pumps, and BFS floor saws. As a direct OEM replacement, the is manufactured to the same specifications as the original part, ensuring correct tension, travel, and response characteristics right out of the box. This spring serves critical engine speed regulation across multiple product families, making it one of the more versatile service parts in the Wacker Neuson lineup. Keep a spare on hand if you run multiple machines from these series on the same jobsite.
Key Features
- Correct Spring Rate for Precise Speed Regulation — Engineered to the exact tension specification required for stable engine governing across all compatible Wacker Neuson models.
- Genuine OEM Part — Sourced directly from Wacker Neuson; identical in material, form, and function to the spring installed at the factory.
- Broad Cross-Family Fitment — Confirmed fit across PT3 trash pumps, GP4000 portable generators, PDT2/PDT3 and PDI2/PDI3 diaphragm pumps, PG2/PG3 dewatering pumps, and BFS 935B, BFS 914B, BFS 914W, BFS 940W, BFS 90R, BFSX 90R, BFS16, and BFSX16 floor saws.
- Drop-In Installation — Matches the hook geometry and free length of the original spring, connecting directly to the existing governor linkage without any adjustment or rework.
- Protects Engine Output and Fuel Efficiency — A correctly tensioned governor spring keeps engine RPM stable under load, protecting both the engine and driven equipment from the effects of speed fluctuation.
- Fuel System Safety Relevance — Because the governor spring directly influences throttle and fuel delivery response, using a correctly rated OEM spring helps prevent over-speed and uncontrolled RPM conditions.
The governor spring is a small but critical component in the engine's mechanical speed-control system. It works in tension against the governor flyweights, setting the point at which the throttle is held open or closed to maintain a target engine speed under varying load conditions. If the spring stretches, weakens, or breaks, the engine may hunt (surge repeatedly), run at incorrect RPM, or lose the ability to hold a steady speed under load — all of which directly affect the output quality of a pump, generator, or saw blade. Replacing a worn governor spring with the correct OEM part restores stable, consistent engine behavior and protects downstream equipment from the stress of speed variation.
Part Details
| Part Number | 5000205315 |
|---|---|
| Old Part Number | 0205315 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Governor Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT3 Pump | PT3 | 5000009321 |
| Premium Portable Generator | GP4000 | 5000620090, 5000620380, 5000620977, 5000620978, 5000620089 |
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000620770 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495, 5000620774 |
| PG2 Dewatering Pump | PG2 | 5000009496, 5000009497 |
| PG3 Dewatering Pump | PG3 | 5000009498, 5000009499 |
| BFS 935 SAW,BASIC | BFS 935B | 5000008911 |
| Floor Saw | BFS16 | 5000630098 |
| Floor Saw | BFS 90R | 5000009522 |
| Floor Saw | BFSX 90R | 5000009525 |
| BFS 914B SAW | BFS 914B | 5000610093 |
| Petrol Floor Saw BFS 940W | BFS 940W | 5000610328, 5100004005 |
| Floor Saw | BFSX16 | 5000630248 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
| 75mm/3in Diaphragm Trash Pump | PDI3 | 5000009491, 5000009492 |
| Floor Saw | BFS 914W | 5100004003 |
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.
