Wacker Neuson 5200019909 Washer — Fits APT4S & APT4T Pump Series

The Wacker Neuson Washer is a genuine OEM Washer designed for the APT4S and APT4T pump series, including standard and Cold Weather configurations with both surge brake and electric brake variants. As a factory-sourced component, part is manufactured to the same specifications as the original part it replaces, ensuring a correct, direct installation with no guesswork. Sourcing OEM means you get the exact material grade and dimensional tolerancing Wacker Neuson specifies for these pumps. Cross-reference your model number before ordering to confirm compatibility across the full APT4S and APT4T lineup.

Key Features

• OEM Material and Dimensional Accuracy — Manufactured to Wacker Neuson's exact thickness, inner diameter, and material grade specifications, so the washer seats and distributes load precisely as the pump assembly requires.
• Drop-In Direct Replacement — Matches the original mounting position and hardware interface on APT4S and APT4T pumps, allowing straightforward installation without rework or adjustment.
• Broad APT Series Coverage — Compatible with APT4S Pump with Skid, APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, and all corresponding Cold Weather variants.
• Correct Load Distribution — A properly functioning washer spreads fastener load evenly across the mating surface, preventing stress concentrations that can damage pump housing components over time.
• Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, part number 5200019909 carries the same quality assurance as every component that ships in a new machine.

A washer serves as a load-spreading interface between a fastener — such as a bolt or nut — and the surface it bears against. By distributing clamping force over a wider area, it protects softer or more fragile mating surfaces from deformation and helps maintain the correct clamping torque over time. When a washer is worn, deformed, or missing, fasteners can work loose under vibration, leading to misalignment, leaks, or damage to surrounding pump components that are far more costly to replace.

Part Details

Compatibility & Fitment

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.