The Wacker Neuson 5200020009 Gear Complete is a genuine OEM component designed for the APT4S and APT4T pump series, including standard, cold weather, surge brake, and electric brake configurations. As a factory-sourced assembly, this Gear Complete is manufactured to the same specifications as the original unit installed at the factory, ensuring a direct, reliable fit across all covered variants. The 5200020009 is the correct replacement for both the APT4S Pump with Skid and the APT4T Pump configurations, making it a versatile solution for fleets running multiple variants of these Wacker Neuson pumps.
Key Features
- OEM Gear Mesh Accuracy — Manufactured to exact tooth profile and hardness specifications, maintaining proper gear engagement and torque transfer within the pump drive system.
- Complete Assembly — Supplied as a fully assembled Gear Complete unit, simplifying installation and eliminating the need to source individual gear components separately.
- Broad APT4 Series Coverage — Fits APT4S (standard and cold weather) and APT4T (surge brake and electric brake, standard and cold weather) pump configurations under a single part number.
- Drive System Integrity — A correctly functioning gear assembly ensures consistent pump output and smooth power transmission; a worn or damaged gear can cause pump inefficiency, slippage, or complete drive failure.
- Genuine Wacker Neuson OEM Part — Sourced directly through the Wacker Neuson parts network, this component carries the confidence of factory-verified material and dimensional standards specific to the APT4 pump family.
The Gear Complete in the APT4S and APT4T pump series transmits rotational power through the pump's drive train, converting engine or motor output into the mechanical force needed to move fluid efficiently. When the gear assembly wears or fails, the pump may lose prime, deliver reduced flow, or stop functioning altogether — directly impacting site dewatering or fluid transfer operations. Replacing the gear assembly as a complete unit restores proper mesh and drive efficiency, getting the pump back to full operational capacity.
Part Details
| Part Number | 5200020009 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gear Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
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.
