Wacker Neuson 5000174000 1 NPT Strain Relief Nut

The Wacker Neuson is a genuine OEM 1 NPT Strain Relief Nut designed for the HI-series indirect-fired air heaters and E-series ground heaters. This hardware fitting is sourced directly from Wacker Neuson, ensuring it meets the exact specifications of the original component installed at the factory. Fitment covers a broad range of units including the HI260, HI750, HI900DGM, HI1000, HI1000DGM, E3000, and E5000 series. When you need a direct, part-for-part replacement, the delivers the correct thread form and engagement depth to restore your heater's electrical cable management system.

Key Features

• Correct 1 NPT Thread Form — Machined to the standard 1-inch NPT taper thread specification, ensuring full engagement and a secure, rattle-free installation in the heater housing.
• Genuine OEM Component — Supplied as an authorized Wacker Neuson replacement, manufactured to the same material and dimensional tolerances as the original part installed on the production line.
• Broad Heater Series Compatibility — Fits HI260, HI750, HI900DGM, HI1000, HI1000DGM, E3000, and E5000 series units, covering both indirect-fired air heaters and ground heater configurations including diesel, gas, and DGM variants.
• Cable and Conduit Protection — Properly securing the strain relief nut prevents cable pull-through and abrasion at the entry point, protecting wiring integrity inside the heater enclosure.
• Electrical Safety Relevance — A loose or missing strain relief nut can allow cable movement at the entry gland, creating a risk of insulation damage and potential electrical fault in a fuel-burning heater environment. Replacement restores the designed level of protection.

A strain relief nut secures the fitting or gland that clamps an electrical cable or conduit where it enters a housing or enclosure. By locking the gland in place, it prevents the cable from being pulled, twisted, or chafed at the point of entry — a particularly important function on fuel-burning heaters where vibration and thermal cycling are constant stresses. When this nut is missing, damaged, or cross-threaded, the cable entry point becomes unsecured, which can allow moisture ingress, insulation wear, and loose connections that compromise heater operation and create electrical hazards in the field.

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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