The Wacker Neuson Coolant Fill Cap is a genuine OEM component designed for the HSH700 and HSH650 hydronic surface heaters. As a direct OEM replacement sourced through Wacker Neuson's authorized parts network, this cap is manufactured to the exact specifications of the original, ensuring a proper seal on the coolant reservoir. It is a straightforward drop-in replacement for machines showing a worn, cracked, or missing fill cap, keeping the coolant system properly pressurized and protected.
Key Features
- Pressure-Rated OEM Seal: — Manufactured to the original pressure specification for the HSH coolant system, maintaining the correct operating pressure and preventing coolant loss.
- Direct OEM Fit: — Threads directly onto the coolant reservoir neck of the HSH700 and HSH650, matching the original cap's thread pitch and sealing surface exactly.
- Hydronic Heater Fitment: — Verified for HSH700 and HSH650 hydronic surface heaters, making part selection straightforward for fleet operators and service technicians.
- Protects Coolant System Integrity: — A properly seating fill cap prevents air ingestion and coolant evaporation, both of which can cause overheating or inconsistent heat output during cold-weather concrete curing operations.
- Genuine Wacker Neuson OEM Part: — Supplied as an authentic Wacker Neuson component, built to the same material and dimensional standards as the cap originally installed at the factory.
The coolant fill cap seals the opening of the coolant reservoir on the hydronic surface heater, maintaining the system's pressurized loop that circulates heated fluid through curing blankets and hoses. When the cap is damaged, missing, or no longer sealing correctly, the coolant system can lose pressure, leading to reduced heat transfer efficiency, coolant boilover, or air locks in the circulation loop — all of which compromise curing performance on cold-weather concrete pours. Replacing a worn cap promptly is a simple, low-cost step that protects the entire heating circuit.
Part Details
| Part Number | 5000169162 |
|---|---|
| Old Part Number | 0169162 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Coolant Fill Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| HSH650 | HSH650 | 5000620991 |
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.
