
18L19-18L1901-105982-01 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $31.99 | Condition is New, ClimaTek Pressure Switch Fits Lennox Ducane 18L19 18L1901 105982-01, FREE SHIPPING | ![]() |
![]() | $42.95 | Condition is New, OEM Lennox Armstrong Ducane Pressure Switch Replaces MPL 18L19 18L1901 105982-01, FREE SHIPPING | ![]() |

The Lennox Armstrong Air Conditioning Pressure Switch, model number MPL 18L19 18L1901 105982-01, is a crucial component in ensuring the efficient and effective operation of your Lennox Air Conditioning system. This pressure switch is specifically designed for use with Lennox Armstrong air conditioning units and is engineered to provide reliable pressure control.
This pressure switch is a pneumatic switch that senses the pressure difference between the high-pressure side and the low-pressure side of the air conditioning system. It is designed to activate the compressor clutch when the refrigerant pressure reaches the required level, allowing the compressor to start and cool your home. When the desired pressure is reached, the switch turns off the compressor, protecting the system from damage caused by overpressure.
The MPL 18L19 18L1901 105982-01 pressure switch is made of high-quality materials, including a durable cast aluminum housing, which provides excellent resistance to corrosion and wear. The switch features a diaphragm that separates the high and low-pressure sides of the system, ensuring that no refrigerant or oil can come into contact with the electrical components, thus preventing damage and extending the life of the switch.
The pressure switch is easy to install and can be mounted in various orientations, making it a versatile solution for different installation configurations. The switch also features a test port, which allows for easy testing and diagnosis of any issues, ensuring that you can quickly identify and address any potential problems.
In summary, the Lennox Armstrong Air Conditioning Pressure Switch, model number MPL 18L19 18L1901 105982-01, is an essential component in ensuring the proper functioning of your Lennox Air Conditioning system. Its durable design, reliable pressure control, and easy installation make it an excellent choice for maintaining the efficiency and effectiveness of your air conditioning system.
Lennox Armstrong Ducane MPL 18L19 Pressure Switch: A Comprehensive Analysis
The Lennox Armstrong Ducane MPL 18L19 pressure switch is a crucial component in the efficient operation of Lennox heating systems. Here's an in-depth analysis of this pressure switch, including its pros, cons, and an ultimate recommendation.
Pros:1. High-quality construction: The Lennox Armstrong Ducane MPL 18L19 pressure switch is built to last, featuring robust materials and durable design.
2. Accurate pressure regulation: This pressure switch ensures precise pressure control within the heating system, ensuring optimal performance and efficient energy use.
3. Easy installation: The pressure switch can be easily installed in most Lennox heating systems, saving time and effort for homeowners or HVAC professionals.
4. Reliable: With its proven track record and high-quality construction, the Lennox Armstrong Ducane MPL 18L19 pressure switch is a reliable choice for maintaining the proper functioning of your heating system.
Cons:1. Cost: Compared to some aftermarket alternatives, the Lennox Armstrong Ducane MPL 18L19 pressure switch may be more expensive.
2. Limited compatibility: This pressure switch is specifically designed for use with Lennox heating systems, limiting its versatility for use with other brands.
In conclusion, the Lennox Armstrong Ducane MPL 18L19 pressure switch is a high-quality, reliable component designed to ensure the optimal performance of Lennox heating systems. While it may carry a higher price tag and have limited compatibility, its robust construction, accurate pressure regulation, and easy installation make it a worthwhile investment for Lennox system owners.
Recommendation: If you own a Lennox heating system and are in need of a reliable pressure switch, the Lennox Armstrong Ducane MPL 18L19 pressure switch is a solid choice. Its proven performance, durability, and ease of installation outweigh the potential drawbacks, making it a recommended option for Lennox system owners.
Details:
Function: an air switch is safety designed to ensure that your inducer motor running at the proper rpm, and creating vacuum for furnace flue safely. Repair difficulty level: partial list of units that use this item. Replaces old part #s: 18L19 18L1901 105982-01. It is a direct replacement for Mpl.
Replaces old part #s an air switch is safety designed to ensure that your inducer motor running at the proper rpm, and creating vacuum for furnace flue safely.
specifications centrafurn:
- brand: Fits Lennox Armstrong Ducane Mpl
- mpn: 18l19
- model: Fits 18l19 18l1901 105982-01
- type: Pressure Switch
offer centrafurn:
- in stock #: 2
- sold #: 34
- options: ship-to-home
- started: june 5, 2025
- availability: in stock
- prices: $31.99–$42.95
- item condition: New
returns centrafurn:
- paid by: seller
- time: 30 days
- method: money back
- policy: returns accepted
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
shipping centrafurn:
- transit: 4-8 days
- class: standard, expedited, one-day
- service: usps ground advantage, usps priority mail, fedex 2day, ups next day air saver
- carrier: usps, fedex, ups
- type: calculated
seller centrafurn:
- city: louisville, kentucky
- rating: 98.5%
- # reviews: 151487
payments centrafurn:
- wallet: google-pay
- credit card: visa
- other
Also Available:
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- 100648-02: FURNACE BLOWER MOTOR, Lennox
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- P-8-965-57703: , Lennox
- -900-8: FURNACE SENSOR, Onetrip Parts
- 97H0301: FAN TIMER, Heat Craft Lennox Ducane Armstrong
- 97L48-97L4801-17W92: CONTROL BOARD, Fits Lennox Armstrong Ducane
- 69W50-69W5001-102703-02: BLOWER WHEEL, Fits Lennox Armstrong Ducane
- 789964514098: FURNACE SENSOR, Appliancemate
- 818742014564: FURNACE SENSOR, Duralight
- 818742014557: FURNACE SENSOR, Duralight


