The Wacker Neuson Muffler Gasket is a genuine OEM component designed for MDP3, MDP3X, and PT3c series diaphragm and trash pumps. As a factory-sourced part, it is manufactured to the exact material and dimensional specifications required by Wacker Neuson, ensuring a proper seal between the engine and exhaust system every time. This gasket covers a range of pump variants including the MDP3-CE, MDP3X, MDP3-CN, PT3G-c CE, and PT3G-c CN models. When you need a straight swap with no guesswork, the is the correct part for the job.
Key Features
- OEM Sealing Material: — Manufactured to Wacker Neuson's exact gasket compound and thickness spec, delivering the compression and heat resistance this exhaust application demands.
- Drop-In Exhaust Flange Fit: — Matches the muffler mounting flange on compatible pump engines precisely, so bolt holes and sealing surfaces align without trimming or adjustment.
- Broad MDP3 and PT3c Coverage: — Fits MDP3-CE, MDP3X, MDP3-CN, PT3G-c CE, and PT3G-c CN pump variants, making it a versatile stock item for fleets running multiple pump models.
- Exhaust Leak Prevention: — A worn or blown muffler gasket allows hot exhaust gases to escape at the flange joint, causing noise, fume hazards, and potential heat damage to surrounding components. A fresh OEM gasket restores a proper seal.
- Exhaust System Safety: — Containing exhaust gases fully within the designed path is critical on pump equipment operating in confined or semi-enclosed jobsite conditions. This genuine OEM gasket supports correct exhaust routing as intended by the manufacturer.
A muffler gasket forms the sealed joint between the engine's exhaust port and the muffler assembly, preventing hot combustion gases from escaping before they reach the exhaust outlet. On diaphragm and trash pumps like the MDP3 and PT3c series, maintaining this seal keeps the machine running quietly, protects nearby hoses and components from heat exposure, and ensures exhaust is directed safely away from the operator. When the gasket deteriorates or burns through, exhaust leaks at the flange joint — a condition that typically announces itself with increased noise and a noticeable exhaust smell — and the gasket should be replaced promptly to restore safe, proper operation.
Part Details
| Part Number | 5000409399 |
|---|---|
| Old Part Number | 0409399 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Muffler Gasket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| MDP3 | MDP3-CE | 5100056324 |
| 75mm/3in Diaphragm Trash Pumps | MDP3X | 5000630420 |
| Water Pump | MDP3-CN | 5000630438 |
| PT3c | PT3G-c CE | 5100079343 |
| PT3c | PT3G-c CN | 5100079600 |
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.
