Wacker Neuson 1000290783 Coolant Fitting

The Wacker Neuson Coolant Fitting is a genuine OEM component designed for the TH627 hydronic surface heater. As a direct factory replacement, this fitting ensures a secure, leak-free connection within the machine's coolant circuit, maintaining proper fluid flow throughout the heating system. Sourced directly from Wacker Neuson, part is manufactured to the same specifications as the original, so you can install with confidence knowing the fit and function will match what came off the machine.

Key Features

• Genuine OEM Integrity: — Precision-formed to exact material and dimensional tolerances, ensuring a pressure-rated seal that holds up under continuous coolant system demands.
• Drop-In Replacement: — Connects directly to the existing coolant line ports on the TH627, using the same thread pattern and barb profile as the original fitting.
• TH627 Fitment Confirmed: — Verified for the Wacker Neuson TH627 hydronic surface heater (418-02), so you can order with confidence in compatibility.
• Leak-Free Coolant Routing: — A correctly seated coolant fitting keeps the heating circuit sealed and pressurized; a cracked or loose fitting can cause coolant loss and uneven surface heating performance.
• Fuel and Fluid System Safety: — Maintaining an intact coolant circuit prevents overheating of system components and protects the heater's heat exchanger from damage caused by low-flow conditions.

A coolant fitting serves as a connection point within the hydronic heater's closed-loop fluid circuit, directing heated coolant between the heat exchanger, hoses, and surface heating elements. When this fitting cracks, strips, or leaks, the system loses coolant pressure, which can result in reduced heating output, uneven concrete curing temperatures, or damage to other components in the loop. Replacing a failed fitting promptly restores the integrity of the entire coolant circuit and keeps the TH627 operating at its rated heating capacity.

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.