Wacker Neuson 5200023409 Hydraulic Reservoir Plug

The Wacker Neuson Hydraulic Reservoir Plug is a genuine OEM component designed for the HIF 690 Flameless Air Heater series. As a direct factory replacement, this plug maintains the integrity of the hydraulic reservoir, ensuring the system stays sealed and free from contamination during operation. It is confirmed to fit multiple HIF 690 configurations, including Kubota engine-equipped units.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's original sealing specification, ensuring the reservoir plug seats correctly and holds a leak-free closure under operating pressure.
• Direct Drop-In Replacement — Matches the original thread pitch and plug dimensions for straightforward installation with no reworking of the reservoir port.
• Broad HIF 690 Series Compatibility — Fits multiple HIF 690 Flameless Air Heater variants, including standard and Kubota engine-equipped configurations.
• Protects Hydraulic Fluid Cleanliness — A properly sealed reservoir prevents moisture ingress and airborne debris from entering the hydraulic circuit, which directly affects heater performance and component longevity.
• Sourced Direct from Wacker Neuson — Genuine OEM part backed by the manufacturer, giving you confidence that 5200023409 is the correct, current-production component for your machine.

The hydraulic reservoir plug seals the fill or access port on the machine's hydraulic fluid reservoir, preventing fluid loss and keeping contaminants out of the system. On equipment like the HIF 690 Flameless Air Heater, where hydraulic circuits drive key operational functions, a compromised or missing plug can lead to fluid leakage, pressure loss, and ingestion of dirt or moisture that accelerates wear across the entire hydraulic system. Replacing a damaged or deteriorated plug promptly keeps the hydraulic circuit properly sealed and operating 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.