Wacker Neuson 5200020190 Washer — Genuine OEM for APT4S & APT4T Pumps

The Wacker Neuson Washer is a genuine OEM replacement designed for APT4S and APT4T series water pumps. Sourced directly from Wacker Neuson, this washer meets the same dimensional and material standards as the original component installed at the factory. It fits across the full APT4S and APT4T lineup, including surge brake, electric brake, and cold weather variants. When it's time to service your pump, choosing the correct OEM washer means the assembly goes back together the way it was built.

Key Features

• OEM-Matched Material Spec — Manufactured to the same hardness and dimensional tolerances as the original, ensuring correct load distribution and seating in the assembly.
• Drop-In Replacement — Matches the original bore, outer diameter, and thickness so it installs without adjustment or rework.
• Broad APT Series Coverage — Fits APT4S Pump with Skid and APT4T Pump configurations, including surge brake, electric brake, and cold weather variants across both model families.
• Protects Mating Surfaces — A correctly spec'd washer prevents fastener pull-through and distributes clamping load evenly, protecting the components it contacts from premature wear.
• Genuine Wacker Neuson Part — Part number 5200020190 is an authorized OEM component, backed by Wacker Neuson's parts program for consistent quality and availability.

A washer serves as a load-spreading interface between a fastener and the surface it bears against. By distributing clamping force across a wider area, it prevents the fastener head or nut from pulling into or damaging the material beneath it, and helps maintain consistent joint tension over time. When a washer wears thin, deforms, or goes missing entirely, fasteners can loosen under vibration, leading to misalignment, leaks, or component damage that is far more costly to address than a simple washer replacement.

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.