Description
Overview:
This Genuine Kawasaki thermostat (OEM 490542056) regulates coolant flow in liquid‐cooled V‐twin engines to keep operating temperature stable. Built from durable, corrosion‐resistant metal, it opens and closes at the correct threshold so the engine warms up promptly and avoids overheating under load. Designed as a direct‐fit replacement for Kawasaki FD620D and FD661D engines, it is also used across various Kawasaki powerplants found in garden tractors, professional mowers, and compact construction machinery. The correct thermostat helps maintain smooth running, protects internal components, and supports consistent performance over long service hours. If your engine is running cold, overheating, or taking too long to reach temperature, replacing a worn thermostat with this genuine part restores proper temperature control with minimal downtime.
Key Features:
- Genuine Kawasaki part for assured fit, function, and calibration (OEM 490542056)
- Robust metal construction for long service life in demanding conditions
- Precise temperature regulation for stable running and engine protection
- Helps the engine reach operating temperature quickly for consistent performance
- Direct replacement with no modifications required
- Compatible with a wide range of Kawasaki V‐twin engines used in turf and light plant equipment
- Supports fuel efficiency by preventing over‐cooling and excessive idling
- Reliable operation reduces risk of overheating‐related damage
Typical Applications:
Used in Kawasaki engines powering ride‐on mowers, garden tractors, turf maintenance machines, utility vehicles, and compact construction equipment. Ideal for routine servicing when diagnosing overheating, running cold, or irregular temperature behaviour. Suitable for preventative maintenance to keep cooling systems performing correctly in professional and domestic environments.
Also known as:
Kawasaki engine thermostat, coolant thermostat, water thermostat valve, temperature regulator, thermostat cartridge for Kawasaki V‐twin engines.
Fits Models:
FD440V, FD501D, FD501V, FD590V, FD611V, FD620D, FD661D, FD731V
Alternate Part Numbers:
490542056
Product Specifications
| L&S Part No. | 490542056 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kawasaki |
| OEM No. | 490542056 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Kawasaki |
| Key Features | - Genuine Kawasaki part ensures correct fit and function - Durable metal construction resists corrosion - Direct replacement for FD620D and FD661D engines - Compatible with various Kawasaki V-twin engines - Regulates temperature to prevent overheating and over-cooling |
| Fits Models | FD440V | FD501D | FD501V | FD590V | FD611V | FD620D | FD661D | FD731V |
