Oil Pressure Switch 121252-39450 for Yanmar 2610 2620 2820 3110 3220 4300 4220
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Compatible Models
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Oil Pressure Switch for Yanmar
This oil pressure switch 121252-39450 for Yanmar 2610 2620 2820 3110 3220 4300 4220 monitors engine oil pressure and triggers a warning light when pressure drops below safe levels, protecting your tractor's engine from damage.
Overview
This oil pressure switch 121252-39450 is a direct replacement component designed to detect low oil pressure in Yanmar tractors. It sends a signal to the dashboard warning system, alerting the operator to potential lubrication issues before serious engine damage occurs. This switch is essential for maintaining the reliability and longevity of your Yanmar equipment.
Built For Performance
- Precision-threaded fitting for a secure, leak-free seal
- Rugged construction withstands high heat and vibration
- Reliable electrical contact ensures accurate pressure signaling
- Direct replacement for OEM part number 121252-39450
- Tested for consistent performance across demanding conditions
Fits These Machines
- for Yanmar 2610
- for Yanmar 2620
- for Yanmar 2820
- for Yanmar 3110
- for Yanmar 3220
- for Yanmar 4300
- for Yanmar 4220
On-The-Job Use
- Monitors oil pressure during heavy field operations
- Provides early warning during prolonged PTO work
- Ensures safe operation in loader and backhoe applications
- Helps prevent costly engine failure during tillage or mowing
Specs At A Glance
| Part Number(s) | 121252-39450 |
| Type | Oil Pressure Switch |
| Connection | Threaded |
| Function | Low oil pressure warning |
Good To Know
Q: How does this oil pressure switch work? A: The switch uses a diaphragm or piston that reacts to engine oil pressure, opening or closing an electrical circuit to turn the warning light on or off. It is a normally closed switch that opens when pressure is present.
Q: What happens if this switch fails? A: A failed switch may cause the warning light to stay on constantly, stay off even with low pressure, or leak oil. Replacing it promptly is important to avoid engine damage.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.