The Wacker Neuson Throttle Valve Returning Spring is a genuine OEM component designed for a wide range of Wacker Neuson equipment including the MFS14 and MFS12 Floor Saws, MG3 and MG3sd Portable Generators, MP15 and MP70 Single Direction Plates, MD3.5 Modular Internal Vibrators, and MFP1.5 and MFP2 Fire Pumps. Sourced directly from Wacker Neuson, this part is manufactured to the same standards as the original component fitted at the factory. Choosing a genuine OEM part means you get the correct spring tension and dimensional spec for your machine every time. Cross-reference part number before ordering to confirm compatibility with your specific model and serial number.
Key Features
- Correct Spring Tension for Throttle Control — Engineered to the exact load rating of the original, ensuring the throttle valve snaps back consistently and does not stick or lag under operating conditions.
- Genuine OEM Part — Supplied by Wacker Neuson as part number 5000404050, this is the same component used in original assembly — not an approximation.
- Drop-In Replacement — Matches the original mounting points and spring geometry, so installation requires no modification to surrounding throttle valve components.
- Broad Model Coverage — A single part number fits across Wacker Neuson Floor Saws, Portable Generators, Single Direction Plates, Modular Internal Vibrators, and Fire Pumps, making it a practical stock item for mixed fleets.
- Fuel System Integrity — A properly tensioned throttle valve returning spring keeps fuel delivery responsive and consistent; a worn or broken spring can cause erratic throttle behavior, over-fueling, or failure to return to idle — a genuine safety concern on any engine-powered machine.
The throttle valve returning spring is a small but critical part of the engine's fuel control system. Its job is to pull the throttle valve back to the idle or closed position as soon as operator input is released, ensuring the engine does not remain at elevated RPM unintentionally. When this spring weakens, breaks, or loses tension, the throttle may stick open or respond sluggishly — leading to loss of engine speed control, increased fuel consumption, and a potential safety hazard on the worksite. Replacing a worn 5000404050 Throttle Valve Returning Spring restores the crisp, predictable throttle response your Wacker Neuson equipment was built to deliver.
Part Details
| Part Number | 5000404050 |
|---|---|
| Old Part Number | 0404050 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Throttle Valve Returning Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| MP15 | MP15 | 5000630131, 5000630227 |
| Modular Internal Vibrators | MD3.5 | 5000630242 |
| Single Direction Plate | MP70 | 5000630243 |
| Floor Saw | MFS14 | 5000630186, 5000630221 |
| Floor Saw | MFSX14 | 5000630246 |
| Floor Saw | MFS12 | 5000630187, 5000630220 |
| Portable Generators | MG3sd | 5000630201, 5000630215, 5000630235 |
| Fire Pump | MFP1.5 | 5000630258 |
| Fire Pump | MFP2 | 5000630259 |
| Portable Generators | MG3 | 5000630335 |
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.
Wacker Neuson
Wacker Neuson 5000404214 Throttle Valve Returning Spring
