The Wacker Neuson 5200021643 Sleeve is a genuine OEM component designed for the APT4T and APT4S series pumps. As a direct factory replacement, this sleeve is sourced to the exact specifications of the original part, making it a straightforward swap for worn or damaged units. Compatible models include the APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, APT4S Pump with Skid, and their corresponding Cold Weather variants.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to the same bore and wall tolerances as the original, ensuring proper sealing and mechanical interface within the pump assembly.
- Drop-In Replacement — Engineered to seat and secure identically to the factory sleeve, allowing straightforward installation without reworking surrounding components.
- Broad APT4 Series Coverage — Fits multiple APT4T and APT4S configurations, including standard and Cold Weather variants with either Surge Brake or Electric Brake setups.
- Sustained Pump Integrity — A correctly fitted sleeve maintains the internal fluid path and housing alignment; a worn sleeve can cause leaks, vibration, or loss of pump efficiency.
A sleeve in a pump assembly serves as a precision-fitted liner or bushing that protects critical internal surfaces, guides moving components, or seals fluid passages within the pump housing. It acts as a wear interface, absorbing friction and mechanical stress so that more expensive structural components are not damaged directly. When a sleeve becomes worn, scored, or corroded, it can compromise sealing, allow fluid bypass, or introduce play into the assembly — all of which reduce pump output and can accelerate wear on adjacent parts.
Part Details
| Part Number | 5200021643 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Sleeve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| 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.
