Wacker Neuson 1000290784 Coolant Fitting

The Wacker Neuson Coolant Fitting is a genuine OEM component designed for the TH627 hydronic surface heater. Sourced directly from Wacker Neuson, this fitting carries the same part number and specification as the original, ensuring a direct, hassle-free installation. If your TH627 is showing signs of coolant leaks or restricted flow at the fitting connection, the is the correct OEM replacement to restore proper operation.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to the original pressure and temperature tolerances required for hydronic heating system coolant circuits, eliminating the guesswork of aftermarket sizing.
• Direct Connector Match — The 1000290784 installs directly into the existing coolant port on the TH627, replicating the original thread form and barb geometry for a leak-free connection.
• Confirmed TH627 Fitment — Verified against Wacker Neuson spare parts list 418-02 for the TH627 hydronic surface heater, so you can order with confidence.
• Sustained Heat Output — A correctly seated coolant fitting maintains the closed-loop flow needed for consistent surface heating performance; a cracked or loose fitting compromises heat distribution across the heating blanket.
• Fuel and Fluid System Safety — On a hydronic heater, coolant circuit integrity is essential to safe operation; using a genuine OEM fitting rated for the system's operating pressure helps prevent uncontrolled fluid loss and potential heat system shutdown.

The coolant fitting is a critical connection point within the TH627's closed-loop hydronic heating circuit. It routes heated coolant between the heater unit and the surface heating blanket or mat, maintaining the continuous fluid flow that delivers even, controlled warmth to concrete slabs, soil, or other surfaces during cold-weather work. When this fitting cracks, strips, or begins to weep coolant, the system loses pressure and heating efficiency drops — in severe cases the heater may shut down entirely to prevent damage. Replacing a worn fitting promptly with the correct OEM part keeps the heating circuit sealed and the system performing 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.