The Wacker Neuson 5200019849 Gear Case Complete is a genuine OEM component designed for the APT4T and APT4S series self-priming trash pumps, including Electric Brake, Surge Brake, and Cold Weather configurations. As a direct factory replacement, this gear case assembly ensures the internal drive components remain correctly housed, aligned, and protected under demanding pumping conditions. This part fits a broad range of APT4T and APT4S variants, making it the correct choice whether you're servicing a standard skid-mount unit or a cold weather-configured model. Verify your machine number against the fitment list to confirm compatibility before ordering.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original engineering tolerances, ensuring the housing geometry and bearing seat dimensions match the original gear case exactly.
- Complete Assembly — Supplied as a full gear case assembly, simplifying the replacement process and eliminating the guesswork of sourcing individual housing components separately.
- Broad APT4T and APT4S Fitment — Confirmed for multiple APT4T and APT4S variants, including Electric Brake, Surge Brake, standard, and Cold Weather configurations across both skid-mount and towed pump setups.
- Protects Drive Integrity — A correctly seated gear case keeps the pump's drive components in proper alignment, maintaining consistent impeller engagement and preventing premature wear on internal shaft and gear surfaces.
- Part Number Confidence — Part number 5200019849 cross-references directly to all listed APT4 pump configurations, so you can order with accuracy against your machine's service records.
The gear case on a self-priming trash pump serves as the structural housing that encloses and supports the pump's drive gears and shaft components, keeping them in correct alignment relative to the impeller and motor. It absorbs operational loads, shields internal components from contamination, and maintains the precise positioning needed for efficient power transfer from the engine or motor to the pump end. When a gear case becomes cracked, warped, or worn at its bearing surfaces, it allows misalignment that accelerates wear on shafts and gears, leads to seal failures, and can ultimately cause a complete loss of pump performance.
Part Details
| Part Number | 5200019849 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gear Case Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
