
67K66 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $45.00 | Condition is New, New Lennox 69J5801 69J58 Relay, DPDT, 24 Volt Coil 23483-71, FREE SHIPPING | 99.5% |
![]() | $58.63 | Condition is New, Lennox 67K66- Genuine OEM Replacement Part, FREE SHIPPING | 99.9% |
![]() | $69.27 | Condition is New, Lennox 67K66 24V 3PDT HEAT RELAY 24V 3PDT HEAT RELAY, FREE SHIPPING | 98.6% |
![]() | $74.79 | Top Pick! Condition is New, Lennox 67K66 Heat Relay 24V 3PDT, FREE SHIPPING | ![]() |
![]() | $74.95 | Top Pick! Condition is New, 67K66 Lennox 24V 3Pdt Heat Relay OEM 67K66, shipping cost = $10.25 | 99.6% |
![]() | $92.64 | Top Pick! Condition is New, LENNOX 67K66 Appliance 67K6601 Relay, FREE SHIPPING | ![]() |
![]() | $100.21 | Condition is New, LENNOX 67K66 67K6601 RELAY, FREE SHIPPING | 98.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $66.50 | Condition is New – Open box, LENNOX 67K66 67K6601 RELAY, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $80.98 | Condition is Unspecified, Lennox 67K66 24V 3PDT HEAT RELAY 24V 3PDT HEAT RELAY, FREE SHIPPING | 97.8% |

The Lennox 67K66 67K6601 relay is a vital component in Lennox brand HVAC (Heating, Ventilation, and Air Conditioning) systems. This particular model is designed to handle the electrical switching requirements of these systems, ensuring efficient and reliable operation.
The 67K6601 relay is a single-pole, double-throw (SPDT) relay, which means it can switch a single circuit between two states. It is rated for a current capacity of 6 amps at 240 volts, making it suitable for handling the electrical loads commonly found in HVAC applications.
This relay features a robust and durable design, with a silver-plated contact surface that ensures long-lasting performance. It also includes a built-in coil that allows for external control, enabling the relay to be activated or deactivated based on specific conditions or user input.
The Lennox 67K66 67K6601 relay is designed to operate reliably in various environments, including those with high temperatures and humidity levels. It is constructed with high-quality materials, ensuring it can withstand the rigors of continuous use in HVAC applications.
Installation of the 67K6601 relay is straightforward, with clear markings on the relay to indicate the proper connection points for the common, normally open, and normally closed terminals. Proper installation and wiring according to the provided instructions will ensure the relay functions optimally within your HVAC system.
In summary, the Lennox 67K66 67K6601 relay is a reliable and essential component for Lennox HVAC systems, designed to handle the electrical switching requirements while ensuring efficient and dependable operation. With its robust design and high current capacity, it is built to last and perform optimally in various environments.
Lennox 67K66/67K6601 Relay: A Comprehensive Analysis
The Lennox 67K66/67K6601 is a commonly used relay in Lennox heating and cooling systems. Replacing a faulty relay can help restore the functionality of your HVAC system. In this analysis, we'll discuss the potential advantages and disadvantages of purchasing this specific relay.
Pros:1. OEM Compatibility: The Lennox 67K66/67K6601 is an original equipment manufacturer (OEM) part, which means it is designed and manufactured to meet the exact specifications of Lennox systems. This can ensure optimal performance and compatibility.
2. Reliability: OEM parts are typically engineered to have a longer lifespan compared to aftermarket alternatives. As the relay is a crucial component of the HVAC system, investing in a reliable OEM part can help minimize the chances of future failures.
3. Easy Installation: Since the Lennox 67K66/67K6601 is designed specifically for Lennox systems, installation is generally a straightforward process. This can save time and effort for homeowners or HVAC professionals.
Cons:1. Cost: OEM parts, including the Lennox 67K66/67K6601 relay, tend to be more expensive than aftermarket alternatives. This can be a significant disadvantage for budget-conscious consumers.
2. Limited Availability: In some cases, OEM parts might be harder to find compared to aftermarket parts, especially for older or less common systems. This can make it more challenging for homeowners or HVAC professionals to source the part when it's needed.
3. Longer Lead Times: Due to the manufacturing process and supply chain, OEM parts may take longer to be delivered compared to aftermarket alternatives. This can result in increased downtime for the HVAC system.
Conclusion:The Lennox 67K66/67K6601 relay offers several advantages, such as OEM compatibility, reliability, and easy installation. However, it also comes with disadvantages, including higher cost, limited availability, and longer lead times. Ultimately, the decision to purchase the Lennox 67K66/67K6601 relay depends on your specific needs, budget, and the urgency of the situation. If you prioritize system compatibility, reliability, and ease of installation, the OEM part may be the best choice for you. Alternatively, if you're on a tight budget or need a part quickly, an aftermarket alternative may be a more suitable option.
Details:
Lennox 67K66 67K6601 relay, never been used been in storage box has shelf wear as seen pictures, USA continental shipping only.
specifications maxohvac:
- brand: Lennox
- mpn: 67k66
- type: Hardware
offer maxohvac:
- best offers: true
- prices: $45.00–$100.21
- item condition:
- New
- New – Open box
- Unspecified
- availability: in stock
- sold #: 9
- options: ship-to-home
- started: december 18, 2025
- in stock #: 5
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- wallet: google-pay
- credit card: discover
- other
returns maxohvac:
- policy: no returns
seller maxohvac:
- city: patterson, louisiana
- rating: 100.0%
- # reviews: 1304
shipping maxohvac:
- class: standard
- type: calculated
- service: usps ground advantage
- transit: 5-12 days
- carrier: usps
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