Thermostat Kit 6653948 for Bobcat 553 753 763 S185 T190

Thermostat with Gasket & O-Ring Kit – Part #6653948 for Bobcat Loaders & Excavators

Keep your Bobcat machine's engine cooling system running at peak efficiency with this complete Thermostat Kit (Part #6653948). Designed as a direct-fit replacement, this kit includes every sealing component you need for a clean, leak-free installation — no hunting down separate parts required.

What's in the Box

• 1 × Thermostat body
• 1 × Paper gasket
• 1 × Rubber O-ring

Key Features

• Complete kit: Includes the thermostat body, paper gasket, and rubber O-ring — everything needed for a full installation in one package.
• Cooling circuit control: Regulates coolant circulation within the engine cooling circuit to help maintain stable operating temperatures.
• Easy inspection & replacement: If abnormal temperature fluctuations occur, this component can be inspected, disassembled, and swapped out quickly.
• Durable materials: Constructed from metal and rubber for lasting performance under demanding working conditions.
• Broad compatibility: Fits a wide range of Bobcat loaders and excavators (see full list below).

Installation Tips

1. Ensure gaskets and O-rings lie completely flat during assembly — replace any that appear crushed or cracked.
2. Tighten bolts diagonally in stages to distribute clamping force evenly and protect housing threads.
3. After assembly, add the appropriate coolant, purge air from the piping, start the machine, and check all connection points for leaks while monitoring temperature.

Specifications

Compatible Models

Loaders: 463, 553, 753, 763, 773, 7753, S150, S160, S175, S185, T190

Excavators: 225, 231, 325, 328, 331, 334, 337, 341, 425, 428

Additional Models: 5600, 6KW, B100, B250, B300, BL275, L370, BL470, BL475, BL570, BL575, E25, E26, 463, 645, 743, 751, 753, 763, 773, 7753, 1600, MT52, MT55, S70, S100, S150, S160, S175, S185, T190

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Frequently Asked Questions

Q: What does the Thermostat Kit 6653948 include for Bobcat machines?

A: The kit includes one thermostat body, one paper gasket, and one rubber O-ring — all the components needed for a complete, leak-free installation in your Bobcat loader or excavator's cooling system.

Q: Is Part #6653948 compatible with the Bobcat S185 and T190?

A: Yes. This thermostat kit is compatible with the Bobcat S185, T190, and many other Bobcat loader and excavator models, including the 553, 753, 763, 773, 7753, S160, and S175.

Q: How do I know if my Bobcat thermostat needs to be replaced?

A: Signs that the thermostat may need replacement include abnormal engine temperature fluctuations, the engine running hotter or cooler than normal, or visible coolant leaks around the thermostat housing. Inspect the thermostat, gasket, and O-ring as a set and replace if any components appear worn or damaged.

Q: Can I install this thermostat kit myself?

A: Yes. The kit is designed for straightforward installation. Ensure the gaskets and O-ring are seated flat, tighten bolts diagonally in stages to avoid thread damage, then add coolant, purge air, and check for leaks once the machine is running.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.