JEENDA Thermostat for Bobcat Loaders & Excavators — Part 6653948, Direct-Fit OE Replacement

JEENDA Thermostat 6653948 is a direct-fit cooling-system replacement engineered to restore correct engine temperature control on a wide range of Bobcat loaders, excavators and work machines.

This thermostat (also referenced as part numbers 6653948 and 6674172) is manufactured to match OE fit and function so your machine maintains proper operating temperature under load. It’s compatible with many Bobcat models — from compact loaders to mid-size excavators — and designed for straightforward installation by technicians or experienced owners. The component helps the cooling system open and close at the correct set point to protect engine performance and efficiency.

Which Bobcat models will this thermostat fit?

This JEENDA thermostat supports an extensive list of Bobcat equipment, including multiple loaders, excavators and utility machines. Confirm the part number against your machine’s service manual or parts diagram before ordering to ensure compatibility.

• Loaders: 463, 553, 753, 763, 773, 7753, S150, S160, S175, S185, T190
• Excavators: 225, 231, 325, 328, 331, 334, 337, 341, 425, 428
• Other fits: 5600 series, MT52/MT55 and several BL/L-series models (verify with part numbers 6653948/6674172)

How does this thermostat affect engine performance on heavy workdays?

By cycling coolant flow at the designed temperature, the thermostat helps the engine reach and maintain its optimal thermal range quickly and consistently. Proper temperature control reduces heat-related wear, supports fuel efficiency and helps the cooling system operate as intended during long shifts or heavy loads.

• Opens and closes at manufacturer-specified temperature for stable operation
• Helps avoid frequent overheating or prolonged cold-running conditions
• Supports consistent coolant circulation under variable workloads

Is installation straightforward and what should I check during replacement?

Installation is typically straightforward for a trained technician and manageable for an experienced owner with basic tools. When replacing the thermostat, inspect gaskets, hoses and the housing for wear, and bleed the cooling system per the machine’s service procedure to prevent air pockets.

• Replace sealing gasket or O-ring with every installation
• Check surrounding hoses and clamps for damage or leaks
• Refill and properly bleed the cooling system after installation

What warranty, returns or quality assurances come with this JEENDA part?

JEENDA provides return and exchange options if you’re not satisfied, giving you 30 days from receipt to request a refund or replacement. The product is supplied to meet compatibility with the listed part numbers; always verify the number on your existing thermostat before replacement.

• 30-day return/exchange window from date of delivery
• Ships as part number 6653948 (also referenced 6674172) for fit confirmation
• Sold as an aftermarket replacement designed for OE-style fitment

Who is this for: Owners, fleet managers and maintenance technicians operating Bobcat compact loaders, excavators and related work machines who need a reliable, OE-form thermostat replacement. If you service machines from the models listed above and need a straightforward, compatible cooling-system part, this JEENDA thermostat is built to restore correct temperature regulation and get equipment back to work quickly.