Multiquip 12850153 Thermostat O-Ring

The Multiquip 12850153 Thermostat O-Ring is a genuine OEM component designed for Multiquip Towable Tower equipment. This factory-sourced seal ensures a pressure-tight fit at the thermostat housing, maintaining the integrity of the engine cooling circuit. Sourced directly through Multiquip's OEM supply chain, part 12850153 is the correct specified replacement for this application.

Key Features

• OEM-Grade Sealing Material — Manufactured to the original elastomer compound specification, ensuring correct compression and resistance to engine coolant and operating temperatures.
• Direct Thermostat Housing Fit — Profiles exactly to the thermostat seat on Towable Tower engines, seating cleanly without trimming or shimming.
• Towable Tower Compatibility — Confirmed fitment for Multiquip Towable Tower models; use part number 12850153 to verify the correct application before ordering.
• Coolant Leak Prevention — A failed or compressed O-ring at the thermostat housing allows coolant to escape, risking engine overheating and unplanned shutdowns on the jobsite.
• Fuel and Coolant System Safety — Maintaining a sealed cooling circuit protects the engine from thermal damage and keeps operating temperatures within safe parameters during extended generator run cycles.

The thermostat O-ring forms a fluid-tight seal between the thermostat and its housing in the engine cooling system. It prevents coolant from bypassing or leaking at the thermostat seat, which is critical to keeping the engine operating within its designed temperature range. When this O-ring hardens, cracks, or deforms over time, coolant loss and engine overheating can follow — making it an essential service item during any thermostat replacement or cooling system inspection.

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.