The Wacker Neuson Intake Valve is a genuine OEM intake valve designed for a wide range of Wacker Neuson equipment including MG3 portable generators, MFS12 and MFS14 floor saws, ML225, ML240, and ML425 light towers, MD3.5 modular internal vibrators, MP15 and MP70 single direction plates, MFP fire pumps, and MG3sd and MG3d generator variants. As a factory-authorized OEM component, part is manufactured to the exact tolerances and material specifications required by Wacker Neuson, ensuring a direct, drop-in fit with no guesswork at installation. This intake valve is the correct service replacement to restore proper engine breathing and maintain full power output across every compatible model in the lineup.
Key Features
- OEM Valve Sealing Integrity — Manufactured to Wacker Neuson's exact seat geometry and material spec, ensuring a consistent, gas-tight seal on every cycle.
- Direct-Fit Replacement — Engineered to the same dimensions as the original, so the valve drops into the cylinder head without machining or shimming.
- Broad Equipment Compatibility — A single part number covers MG3 portable generators, MFS floor saws, ML light towers, MP direction plates, MD vibrators, and MFP fire pumps.
- Restored Engine Airflow — A fresh intake valve re-establishes proper air-fuel charge entry, recovering lost compression and bringing engine output back to spec.
- Fuel System Safety Compliance — A correctly seating intake valve prevents backfire and uncontrolled combustion events, which is critical on fuel-system-adjacent components in generators and pumps.
- Genuine OEM Part — Supplied directly through the Wacker Neuson parts network, so you receive the same component installed at the factory — not a generic substitute.
The intake valve sits inside the engine's cylinder head and opens on each intake stroke to allow the air-fuel mixture into the combustion chamber. It must open and close with precise timing and seal completely when closed to maintain compression. When an intake valve wears, burns, or fails to seat properly, the engine loses compression, runs rough, produces less power, and may be difficult or impossible to start — problems that worsen quickly under the sustained loads typical of generators, saws, and light towers.
Part Details
| Part Number | 5000403988 |
|---|---|
| Old Part Number | 0403988 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Intake Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| MP15 | MP15 | 5000630131, 5000630227 |
| Light Towers | ML240 | 5000630118, 5000630205, 5000630326 |
| Light Towers | ML425 | 5000630119, 5000630206 |
| Light Towers | ML225 | 5000630120, 5000630207 |
| Modular Internal Vibrators | MD3.5 | 5000630242 |
| Single Direction Plate | MP70 | 5000630243 |
| Floor Saw | MFS14 | 5000630186, 5000630221 |
| Floor Saw | MFSX14 | 5000630246 |
| Portable Generators | MG3 | 5000630142, 5000630135, 5000630256, 5000630225, 5000630230, 5000630234, 5000630238, 5000630240, 5000630253, 5000630309, 5000630311 |
| Floor Saw | MFS12 | 5000630187, 5000630220 |
| Portable Generators | MG3sd | 5000630201, 5000630215, 5000630235 |
| MG3 Generator | MG3d | 5000630213 |
| Fire Pump | MFP1.5 | 5000630258 |
| Fire Pump | MFP2 | 5000630259 |
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.
