Wacker Neuson 5200020162 Washer — Genuine OEM Replacement for APT4S & APT4T Pumps

The Wacker Neuson Washer is a genuine OEM Washer designed for the APT4S and APT4T series water pumps, including standard and cold weather configurations. As a direct factory part, the is manufactured to the exact specifications required by Wacker Neuson, ensuring a proper fit within the pump assembly. This Washer is compatible across multiple APT4S and APT4T variants, covering both surge brake and electric brake models as well as cold weather editions. Ordering by part number confirms you're getting the correct component the first time.

Key Features

• Genuine OEM Dimensional Accuracy — Manufactured to Wacker Neuson's exact thickness and bore tolerances, ensuring the washer seats correctly and maintains proper load distribution within the pump assembly.
• Drop-In Installation — Matches the original mounting position and hardware interface exactly, slotting into place without modification during pump service or rebuild.
• Broad APT Series Coverage — Compatible with APT4S Pump with Skid and APT4T Pump models, including surge brake, electric brake, and cold weather variants across both series.
• Protects Mating Surfaces — A correctly functioning washer distributes clamping force evenly, preventing surface wear, fastener pull-through, and premature loosening under pump vibration and load cycles.
• Sourced Direct from Wacker Neuson — Genuine OEM parts carry full manufacturer traceability, so you can trust the material grade and geometry match what came out of the pump originally.

A washer serves as a critical interface component between a fastener and the surface it secures, spreading the clamping load across a wider area to prevent damage to softer materials and keep connections tight under vibration. In water pump applications like the APT4S and APT4T, where continuous operation generates significant vibration and thermal cycling, a washer in poor condition can allow fasteners to loosen, leading to fluid leaks, misaligned components, or accelerated wear on adjoining hardware. Replacing a worn or damaged washer with the correct OEM part restores the integrity of the fastened joint and helps the pump perform as intended.

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.