Multiquip 825064 Vanguard Thermostat

The Multiquip 825064 Vanguard Thermostat is a genuine OEM thermostat designed for AR13D rollers and HHXD5, HHXG5, and HHXD5-ES Whiteman ride-on power trowels. As a direct OEM replacement, it is built to the exact specification of the original component, ensuring correct operating temperature regulation across these machine families. Sourced directly through Multiquip's authorized parts network, the 825064 is the correct part to specify when servicing the cooling system on compatible equipment. Confirm your model code against the fitment list before ordering to ensure an accurate match.

Key Features

• OEM-Spec Temperature Regulation — Engineered to open and close at the precise temperature thresholds required by the Vanguard engine, preventing both overheating and under-temperature operation.
• Drop-In Cooling System Fit — Matches the original thermostat housing seat dimensions for a direct installation with no machining or adapter work.
• Broad Model Coverage — Compatible with AR13D, HHXD5, HHXG5, and HHXD5-ES equipment, covering both roller and ride-on trowel applications sharing the Vanguard engine platform.
• Protects Engine Longevity — A correctly functioning thermostat keeps the Vanguard engine within its designed thermal window; a failed or stuck thermostat accelerates wear and risks warped cylinder heads or coolant boilover.
• Genuine OEM Sourcing — Supplied as an authentic Multiquip OEM part, carrying the full part number traceability expected for professional equipment maintenance records.

A thermostat is a temperature-sensitive valve located within the engine's cooling circuit. When the engine is cold, the thermostat remains closed, allowing the engine to reach its optimal operating temperature quickly. Once that threshold is reached, the valve opens to circulate coolant through the radiator and regulate heat. A thermostat that sticks open causes the engine to run too cold and lose efficiency, while one that sticks closed allows dangerous heat buildup that can cause severe engine damage in a short period of time.

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.