The Multiquip EE40804 Engine Thermostat John Deere JD4045T is a genuine OEM thermostat designed for equipment powered by the John Deere JD4045T engine. This is a direct OEM replacement sourced through the Multiquip parts network, ensuring it meets the original design requirements for the JD4045T engine application. Verified fitment for JD4045T-powered Multiquip equipment means you can order with confidence and get back to work without guesswork.
Key Features
- Genuine OEM Temperature Regulation: — Built to the exact opening temperature and flow specifications of the original John Deere JD4045T thermostat, so the engine reaches and holds its proper operating temperature range.
- Drop-In Engine Compatibility: — Engineered specifically for the JD4045T engine housing, the EE40804 seats and seals the same way as the original — no adapting or reseating required.
- Confirmed Fitment for JD4045T-Powered Equipment: — Verified for Multiquip machines running the John Deere JD4045T engine; use part number EE40804 to confirm your application before ordering.
- Protects Against Overheating and Overcooling: — A failed thermostat can cause the engine to run too hot or never reach operating temperature, leading to increased wear, poor fuel efficiency, and potential engine damage. This part restores proper thermal control.
- OEM-Sourced Reliability: — As a genuine Multiquip OEM part, this part is held to the same manufacturing standards as the component originally installed on the machine, giving you consistent, predictable performance from the cooling system.
The engine thermostat controls coolant flow between the engine and the radiator by opening and closing in response to coolant temperature. When the engine is cold, the thermostat stays closed to help the engine warm up quickly and evenly. Once the coolant reaches the correct operating temperature, the thermostat opens to allow flow through the radiator and prevent overheating. A worn or stuck thermostat — whether stuck open or closed — disrupts this balance, causing the engine to either overheat under load or run inefficiently at low temperatures, both of which accelerate wear and can lead to costly engine damage over time.
Part Details
| Part Number | EE40804 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Engine Thermostat John Deere JD4045T |
Compatibility & Fitment
| Name | Model |
|---|---|
| JD4045T | JD4045T |
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.
