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SKU:
ZZ3F02117
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82℃ Thermostat 49054-2056 Fit for Kawasaki FD620D FD661D 4 Stroke Engine
$41.59
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$41.59
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
Thermostat for Kawasaki FD620D FD661D 4 Stroke Engine
This 82℃ thermostat, referencing OEM part 49054-2056, fits Kawasaki FD620D and FD661D 4 stroke engines to regulate coolant flow and maintain operating temperature. It opens at 82 degrees Celsius to keep the engine warm during cold starts and prevent overheating under load.
Overview
This 82℃ thermostat for Kawasaki FD620D and FD661D 4 stroke engines is a direct replacement coolant thermostat that controls the engine's temperature by opening when coolant hits 82 degrees Celsius. It is commonly used in commercial mowers, utility vehicles, and generator sets powered by these Kawasaki V-twin engines. The 49054-2056 cross-reference ensures correct sealing and opening characteristics.
Built For Performance
- Opens at 82℃ for efficient warm-up and consistent thermal regulation
- Direct fit for Kawasaki FD620D and FD661D engine cooling systems
- Durable wax-pellet actuator rated for long service life in high-vibration environments
- Precise OEM cross-reference 49054-2056 ensures correct mounting dimensions
- Stainless steel construction resists corrosion from coolant and additives
Fits These Machines
- for Kawasaki FD620D 4 stroke engine
- for Kawasaki FD661D 4 stroke engine
On-The-Job Use
- Install in the engine coolant crossover or housing on commercial zero-turn mowers
- Use in utility vehicles and turf equipment powered by Kawasaki FD series engines
- Replace a stuck-open or stuck-closed thermostat during cooling system rebuilds
- Fit on generator sets or pumps with FD620D or FD661D power units
Specs At A Glance
| Opening Temperature | 82℃ |
| Compatible Engines | Kawasaki FD620D, FD661D |
| Part Number(s) | 49054-2056 |
Good To Know
Q: How do I know if my thermostat is faulty? A: If the engine runs cold or overheats quickly, test the thermostat by heating it in water to see if it opens around 82℃ and fully closes when cooled. A stuck unit should be replaced immediately to avoid engine damage.
Q: Is this thermostat compatible with other Kawasaki engines? A: While designed for FD620D and FD661D, it may physically fit other Kawasaki V-twin engines, but always compare the 49054-2056 part number and housing shape to your original before installation.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.