Wacker Neuson 5200016799 Plug Hex Drive 3-8 NPTM Brass

The Wacker Neuson Plug Hex Drive 3-8 NPTM Brass is a genuine OEM component designed for the HI260 and HI1000 indirect air heater series. Sourced directly from Wacker Neuson, this brass plug delivers an exact match to the original part installed at the factory — no guesswork on thread spec or sizing. It is confirmed to fit multiple HI1000 configurations including the standard diesel, DGM Electric Break, and DGM Surge Brake variants, as well as the HI260 Oil Heater with Tank.

Key Features

• Corrosion-Resistant Brass Construction — Brass material resists fuel and fluid corrosion, maintaining a leak-free seal in demanding heater environments.
• Correct 3-8 NPTM Thread Spec — Matches the original National Pipe Taper Male thread specification exactly, threading in cleanly without recutting or chasing.
• Genuine OEM Part — Manufactured to Wacker Neuson's own standards, ensuring consistent wall thickness, thread form, and hex drive engagement with no tolerance variance.
• Broad HI-Series Heater Compatibility — Fits the HI260 Oil Heater with Tank and the full HI1000 indirect air heater range, including standard and DGM variants.
• Fuel System Integrity — A properly seated plug prevents fluid weeping at ported connections, protecting the heater's fuel circuit from air intrusion or pressure loss.

A hex drive plug seals an unused or access port in the heater's fluid circuit, preventing leaks and keeping system pressure contained. In indirect air heaters like the HI260 and HI1000 series, maintaining a tight seal at every threaded port is critical to consistent fuel delivery and safe combustion operation. When this plug is damaged, cross-threaded, or missing, fluid can seep from the port, introducing air into the fuel circuit and causing unreliable burner performance or heater shutdown.

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.

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