York Parts S1-7142-3091 Limit SwitchYork Parts S1 7142 3091 is a high quality limit switch designed for reliable performance in York equipment. This OEM replacement delivers precise actuation and long service life, making it a smart choice for maintenance, spare parts stocking, and streamlined industrial automation. As a durable replacement part, the S1 7142 3091 supports consistent travel, robust sealing, and easy integration into control panels. Whether upgrading existing systems or

Its Viton seats and robust construction ensure compatibility with common fuel oil formulations while delivering consistent performance across varying electrical voltages

Compatibility: PPO

this York part withstands temperature variations and routine vibration typical of HVAC and industrial controls

20-29 V DC — supports both AC and DC power sources

and FM standards for safe operation in demanding environments

MIL-V-18634B Type I Class 3A Style B compliant and suitable for hot water heating boilers with a capacity of 925

and smaller particulates

Ideal for technicians performing HVAC maintenance or upgrades

and refrigeration

Thermostat Tolerance: ±5%

Ideal for gas-fired furnaces and boilers

For compatibility with modern control boards