Wacker Neuson 1000306221 Pressure Accumulator

The Wacker Neuson Pressure Accumulator is a genuine OEM component designed for the TH627 hydronic surface heater. As a direct OEM part, the is manufactured to the same specifications as the original, ensuring proper system pressure regulation within the hydronic circuit. This part is sourced directly from Wacker Neuson and carries the full OEM designation for the TH627 series.

Key Features

• Genuine OEM Pressure Rating: — Built to OEM-specified pressure capacity, ensuring the accumulator absorbs and moderates hydraulic pressure fluctuations within the heating circuit exactly as the original component does.
• Direct OEM Replacement: — Mounts and connects using the same fittings and orientation as the original, allowing straightforward installation without system modification.
• Verified TH627 Fitment: — Confirmed for the TH627 hydronic surface heater, giving you confidence that this is the correct part for your machine before you order.
• Sustained System Pressure Stability: — A functioning pressure accumulator keeps the hydronic loop operating within its design pressure range; a failed or degraded unit can cause pressure spikes, erratic heating output, or pump strain.
• OEM Part Number Accuracy: — Part number 1000306221 is the factory-assigned reference, eliminating guesswork when sourcing a replacement for the TH627 heating system.

A pressure accumulator in a hydronic surface heater stores a small volume of pressurized fluid within a sealed chamber, absorbing pressure surges and maintaining consistent flow pressure throughout the heating loop. This protects the pump, valves, and hose connections from stress caused by sudden pressure changes during start-up or system cycling. When the accumulator fails — typically through a ruptured internal membrane or loss of pre-charge pressure — the system may experience pressure fluctuations, reduced heating efficiency, or premature wear on other hydronic components.

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.