The Wacker Neuson 5200021693 is a genuine OEM O-Ring designed for the APT8T and APT8S series submersible pumps. As a factory-sourced component, it is manufactured to the exact material and dimensional specifications required to maintain a reliable fluid seal in demanding pump applications. This O-Ring fits across the APT8T and APT8S model range, including Electric Brake, Surge Brake, and Cold Weather variants. Verify your model number before ordering to confirm compatibility with your specific unit.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's exact material compound and cross-section specifications, ensuring the correct compression and seal performance for this pump family.
- Drop-In Replacement — Matches the original O-Ring profile exactly, seating into the factory groove without modification or resizing.
- Broad APT8 Series Coverage — Compatible with APT8T Electric Brake, APT8T Surge Brake, APT8T Cold Weather, APT8S, and APT8S Cold Weather pump configurations.
- Leak Prevention — A correctly installed O-Ring maintains the pressure boundary within the pump assembly; a worn or damaged O-Ring can allow fluid ingress or bypassing, degrading pump output and risking internal damage.
- Fluid System Safety — In pump applications, a failed seal can result in uncontrolled fluid leakage; replacing this O-Ring with a genuine part helps ensure the system operates within its intended pressure envelope.
An O-Ring is a precision-formed loop of elastomeric material that creates a static or dynamic fluid seal between two mating surfaces or components within the pump assembly. In submersible pump applications, the O-Ring prevents water ingress into protected cavities or stops pumped fluid from bypassing intended flow paths, both of which are critical to maintaining pump efficiency and protecting internal components. When an O-Ring degrades — through compression set, chemical attack, or physical damage — it loses its ability to seal completely, leading to leaks, pressure loss, or contamination that can accelerate wear throughout the pump.
Part Details
| Part Number | 5200021693 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT8T Pump, Electric Brake | APT8T | 5200019649, 5200019648 |
| APT8T Pump, Electric Brake, Cold Weather | APT8T CW | 5200019797, 5200019796 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
| 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.
