
48J72 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.99 | Condition is New, 48J72 Lennox 175-205F Autolimitsw 7"Insert OEM 48J72 48J7201 205 Degree Yellow, FREE SHIPPING | 99.9% |
![]() | $43.95 | Top Pick! Condition is New, 48J72 Lennox 175-205F Autolimitsw 7"Insert OEM 48J72, shipping cost = $7.96 | 99.7% |
![]() | $50.96 | Top Pick! Condition is New, Lennox 48J72 175-205f AutoLimitSw 7 Inch Insert Manual Reset Switch, FREE SHIPPING | ![]() |
![]() | $47.02 | Top Pick! Condition is New, LENNOX 48J72 / 48J72 (BRAND NEW), shipping cost = $35.98 | 99.4% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $30.00 | Condition is Used, 48J7201 Lennox Autolimitsw 7"Insert OEM 48J72 42367 A0803 205F High Limit, FREE SHIPPING | 99.5% |

The Lennox 48J72 Autolimit Gas Valve, model number 48J7201, is a critical component of Lennox heating systems, designed to ensure safe and efficient gas supply to the furnace or boiler. This automotive-grade valve is specifically engineered for use with Lennox residential and light commercial heating equipment.
The Lennox 48J72 Autolimit Gas Valve is a high limit/low limit valve, which means it can automatically adjust the gas flow rate to maintain the desired temperature in the combustion chamber. This feature helps prevent overheating, ensuring the longevity and optimal performance of the heating system. The valve comes with factory-installed high and low limit settings, but these can be easily adjusted if needed.
This valve, part number A0803, is designed with a rugged, corrosion-resistant construction to withstand the harsh conditions found in heating systems. The valve body is made of brass, a durable material that resists corrosion, while the internal components are made of stainless steel, providing superior resistance to wear and tear.
The Lennox 48J72 Autolimit Gas Valve is compatible with various Lennox heating systems, including those using natural gas or propane as fuel. It features a 3/4-inch NPT (National Pipe Thread) connection, making it easy to install in existing systems. The valve also comes with a gasket and an adjusting tool, ensuring a secure and leak-free installation.
In summary, the Lennox 48J72 Autolimit Gas Valve is a high-performance, reliable component for Lennox heating systems. Its automotive-grade design, adjustable high and low limit settings, and rugged construction make it an ideal choice for maintaining the safety and efficiency of your Lennox heating equipment.
A Detailed Analysis of the Lennox 48J72 Autolimit Switch 42367 A0803 205F High Limit
Introduction:The Lennox 48J72 Autolimit Switch 42367 A0803 205F High Limit is a crucial component in the heating and cooling system of Lennox furnaces. It's essential to understand the pros and cons of this part before making a purchasing decision.
Pros:1. Enhanced Safety: This part is designed to prevent the furnace from overheating, enhancing safety for the home and its occupants.
2. Improved Efficiency: By preventing the furnace from running at excessive temperatures, the autolimit switch helps maintain optimal efficiency.
3. Long-lasting: Lennox is a well-known brand, and their parts are typically of high quality, ensuring durability and reliability.
4. Easy Installation: The autolimit switch is a straightforward component to install, making it a convenient solution for homeowners.
Cons:1. Potential for False Alarms: The autolimit switch may sometimes trigger a false alarm, causing unnecessary inconvenience and confusion.
2. Expense: Replacing a faulty autolimit switch can be costly, especially for homeowners on a tight budget.
3. Limited Availability: It may be challenging to find this specific part in local hardware stores, making online purchases necessary.
Conclusion:The Lennox 48J72 Autolimit Switch 42367 A0803 205F High Limit is an essential component for maintaining the safety and efficiency of Lennox furnaces. While it may have some downsides, such as potential false alarms and cost, the benefits of enhanced safety and improved efficiency outweigh these cons. Should your furnace's autolimit switch fail, it's recommended to invest in a replacement to ensure the continued proper functioning of your heating system.
Recommendation:When purchasing the Lennox 48J72 Autolimit Switch 42367 A0803 205F High Limit, consider buying from a trusted supplier to ensure authenticity and quality. It's also recommended to check for any available warranties or guarantees, which could provide added peace of mind and potential cost savings.
Details:
This is a high-quality, oem replacement part. Each component is inspected and tested by a technician to ensure it meets original performance standards.
specifications maxohvac:
- brand: Lennox
- mpn: 48j72
- type: Appliance Part
- california prop 65 warning: Warning
- location: Rc2a
seller maxohvac:
- rating: 97.9%
- city: sun prairie, wisconsin
- # reviews: 609
returns maxohvac:
- policy: no returns
payments maxohvac:
- credit card: mastercard
- other
- wallet: paypal
offer maxohvac:
- started: february 4, 2026
- in stock #: 5
- sold #: 8
- prices: $30.00–$50.96
- item condition:
- New
- Used
- availability: in stock
- options: ship-to-home
shipping maxohvac:
- carrier: usps
- type: calculated
- transit: 3-8 days
- class: standard
- service: usps ground advantage
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
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