The Wacker Neuson Thermostat Seal is a genuine OEM component designed for the G40, G50, G60, G70, G95, and G110 series portable generators. Sourced directly from Wacker Neuson, this seal ensures the thermostat housing maintains a proper, leak-free fit within the engine cooling circuit. It is a direct replacement part that installs exactly as the original, with no adaptation needed. Whether you are servicing a mobile generator on a North American worksite or a 50Hz LATAM or Brazil-market unit, part number covers an exceptionally wide range of configurations across the GP generator lineup.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's exact material and compression specifications, ensuring the thermostat housing seals completely against coolant leaks.
- Direct Thermostat Housing Fit — Seats precisely in the thermostat housing bore, restoring the original sealing surface without machining or shimming.
- Broad Generator Series Coverage — Compatible with G40, G50, G60, G70, G95, and G110 portable generators, including North American, Brazil, and 50Hz LATAM variants.
- Protects Engine Cooling Performance — A sound thermostat seal keeps coolant routed correctly through the engine, preventing overheating and temperature fluctuation during continuous generator operation.
- Fuel and Coolant System Safety — A failed or deteriorated seal can allow coolant to escape near hot engine components; replacing it promptly with the correct OEM part maintains safe operating conditions.
The thermostat seal forms a fluid-tight barrier between the thermostat and its housing in the engine's cooling circuit. Its job is to prevent coolant from bypassing or leaking at the thermostat junction, which keeps the engine operating within its designed temperature range. When this seal deteriorates — through heat cycling, age, or chemical breakdown — coolant can seep past the housing, leading to overheating, unplanned shutdowns, or visible coolant loss that can leave a generator unable to sustain load on the jobsite.
Part Details
| Part Number | 5200021352 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermostat Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator | G95 | 5200016642, 5200020677, 5100029186 |
| Mobile Generator | G60 | 5200015951, 5200016641, 5100029185 |
| G70 | G70 | 5200015952, 5100022041, 5100022040 |
| Generator | G40 | 5200015906, 5200016640, 5100029184, 5200015907 |
| Generator | G50 | 5200015909, 5100022009, 5100022008 |
| G110 Generator, Brazil, Value | G110 | 5100022042, 5100022043 |
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.
