The Wacker Neuson 5200021814 Muffler is a genuine OEM component designed for the APT6S, APT6T, APT8S, and APT8T series self-priming trash pumps. As a direct OEM replacement, this muffler is built to the same specifications as the original part, ensuring correct fitment across both skid-mount and trailer-mount configurations — including surge brake, electric brake, and cold weather variants. Compatibility spans the full APT6 and APT8 pump families, making this the correct part for a wide range of Wacker Neuson pump fleet configurations. Verify your model number against the fitment list before ordering to confirm this is the right muffler for your unit.
Key Features
- Genuine OEM Exhaust Specification — Manufactured to the same heat tolerance and backpressure ratings as the original factory muffler, ensuring the engine runs at its intended exhaust efficiency.
- Direct Drop-In Replacement — Matches the original mounting points and outlet dimensions for the APT-series pump engines, allowing straightforward installation without modification to the exhaust system.
- Broad APT-Series Compatibility — Fits APT6S, APT6T, APT8S, and APT8T pump models across skid, surge brake, electric brake, and cold weather configurations.
- Sustained Engine Performance — A correctly functioning muffler maintains proper exhaust flow and back pressure; a cracked or failed muffler can cause rough running, increased noise, and premature engine wear.
- Operator Safety — A sound, sealed muffler is critical for directing exhaust gases away from the operator and surrounding work areas, particularly important during extended pump operation in confined or semi-enclosed environments.
The muffler on a pump engine performs two essential jobs: it reduces the noise produced by exhaust gases exiting the combustion chamber, and it manages exhaust backpressure to keep the engine running efficiently. When a muffler cracks, corrodes, or loses its seal, exhaust gases can escape before they are properly channeled away — resulting in excessive noise, power loss, and a potential safety hazard from hot gases near fuel lines or the operator. Replacing a worn muffler with a genuine OEM part like the Wacker Neuson 5200021814 restores proper exhaust routing and keeps the pump engine performing as intended through demanding pumping cycles.
Part Details
| Part Number | 5200021814 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Muffler |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6T Pump, Electric Brake | APT6T | 5200019647, 5200019646 |
| APT6T Pump, Electric Brake, Cold Weather | APT6T CW | 5200019795, 5200019794 |
| APT6S Pump w/Skid | APT6S | 5200018982 |
| APT8T Pump, Electric Brake | APT8T | 5200019649, 5200019648 |
| APT6S Pump w/Skid, Cold Weather | APT6S CW | 5200019799 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
| APT8T Pump, Surge Brake, Cold Weather | APT8T CW | 5200019796, 5200019797 |
| APT8S Pump w/Skid | APT8S | 5200018987 |
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.
