The Multiquip EE54821 Thermostat QSM11-G4 NR3 is a genuine OEM thermostat designed for QSM11-G4 series equipment. Sourced directly from Multiquip, this thermostat is built to the exact specification required by the QSM11-G4, ensuring the cooling system operates within its correct temperature range. Trust DHS Equipment to supply the right part the first time — verified by model and part number against QSM11-G4 applications.
Key Features
- Genuine OEM Temperature Calibration — Manufactured to the precise opening temperature and flow characteristics required by the QSM11-G4 engine cooling system, not an approximation.
- Direct OEM Replacement — Installs into the existing thermostat housing on QSM11-G4 equipment with no adaptation, matching the original seating dimensions and valve geometry.
- QSM11-G4 Fitment Confirmed — Verified for QSM11-G4 series equipment; cross-reference EE54821 with your unit before ordering to confirm application.
- Cooling System Integrity — A correctly functioning thermostat keeps the engine at its optimal operating temperature, protecting against both overheating and under-temperature running that can cause premature wear and inefficient combustion.
- Fuel System and Engine Safety — In generator and power equipment applications, an out-of-spec thermostat can mask cooling faults or allow sustained over-temperature conditions; using a genuine OEM unit maintains the system's designed thermal safety margin.
The thermostat regulates coolant flow between the engine and the radiator, opening and closing in response to coolant temperature to hold the engine within its designed operating range. When the thermostat sticks open, the engine runs too cool, reducing efficiency and increasing wear; when it sticks closed, coolant cannot circulate through the radiator, causing rapid overheating and potential engine damage. Replacing a failed thermostat promptly with the correct OEM unit — EE54821 — restores proper thermal regulation and protects the engine from both failure modes.
Part Details
| Part Number | EE54821 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Thermostat QSM11-G4 NR3 |
Compatibility & Fitment
| Name | Model |
|---|---|
| QSM11-G4 | QSM11-G4 |
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.
