The Wacker Neuson 5200021788 Jack Complete is a genuine OEM component designed for the APT4T, APT6T, and APT8T series submersible pump trailer units. As a direct OEM replacement, this jack assembly is sourced and manufactured to the same standards as the original part installed at the factory, ensuring a proper fit across all covered APT trailer configurations — including electric brake, surge brake, and cold weather variants. Whether you're servicing a standard APT4T or a cold weather APT8T CW unit, part number 5200021788 is the correct replacement to restore full tongue jack functionality.
Key Features
- Genuine OEM Construction — Engineered to match the load capacity and mechanical travel of the original tongue jack assembly, so the trailer sits and stabilizes exactly as intended during pump deployment and retrieval.
- Drop-In Replacement — Mounts to the existing trailer tongue bracket using the original hardware positions, eliminating guesswork during installation across all APT trailer frames.
- Broad APT Series Coverage — Confirmed fitment across APT4T, APT6T, and APT8T trailer configurations, spanning both electric brake and surge brake variants, including cold weather models.
- Stable Pump Deployment — A functional tongue jack holds the trailer level during hitch connection and disconnection; a worn or seized jack creates an unsafe tilt condition and makes coupling the trailer a two-person task.
- Verified by Part Number — OEM part number 5200021788 cross-references directly to all listed APT trailer machine numbers, giving you confidence that this is the correct assembly before it ships.
The tongue jack on an APT pump trailer supports the front of the trailer frame when the unit is unhitched, allowing the trailer to rest level on the ground rather than nose-diving or requiring manual support. It is also used to raise and lower the coupler during hitching to a tow vehicle, which is especially important on a loaded pump trailer where manual lifting is not practical. When the jack mechanism wears, corrodes, or seizes — particularly in cold weather or wet jobsite conditions — the trailer becomes difficult to hitch safely and may sit at an unstable angle that shifts the pump load and stresses the frame.
Part Details
| Part Number | 5200021788 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Jack Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6T Pump, Electric Brake, Cold Weather | APT6T CW | 5200019795, 5200019794 |
| APT6T Pump, Electric Brake | APT6T | 5200019647, 5200019646 |
| APT8T Pump, Surge Brake, Cold Weather | APT8T CW | 5200019796, 5200019797 |
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT8T Pump, Surge Brake | APT8T | 5200019648, 5200019649 |
| 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.
