
37123 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $19.87 | Condition is New – Open box, LENNOX 37123 M.2551 Kit P-8-872, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $55.99 | Condition is New, Lennox 66436P8-872 relay General Electric 3ARR4BL32 new, shipping cost = $9.00 | 100.0% |

The Lennox M.2551 P-8-872 Kit, part number 37123, is a comprehensive solution designed for heating and cooling system repair or replacement projects. This kit is specifically engineered for use with Lennox P-8-872 Gas Furnaces.
The heart of this kit is the Inducer Motor, model number P-8-872, which is a robust and efficient unit designed to facilitate proper combustion and airflow within the furnace. It features a heavy-duty squirrel cage design, sealed bearings, and a robust construction to ensure reliable operation and long service life.
Additionally, the kit includes a set of eight 0.5-inch (12.7 mm) diameter, 15-inch (381 mm) long, and 3-inch (76.2 mm) high perforated heat exchanger panels (model number 132134). These panels play a crucial role in the furnace's heat exchange process, allowing for efficient transfer of heat from the combustion process to the surrounding air.
The kit also includes two 12 x 24 x 2.5 inch (30.5 x 61 x 6.4 cm) low-profile inducer blower wheels (model number 132121). These wheels are designed to work seamlessly with the inducer motor and help ensure proper airflow within the furnace.
Furthermore, the Lennox M.2551 P-8-872 Kit includes a 1-inch (2.5 cm) diameter, 12-inch (30.5 cm) long bypass stack (model number 132115) and a 1-inch (2.5 cm) diameter, 24-inch (61 cm) long flexible vent pipe (model number 132133). These components facilitate the safe and efficient exhaust of combustion gases from the furnace.
Lastly, the kit includes various mounting hardware and gaskets, ensuring a secure and airtight installation of the components within the furnace. With this comprehensive kit, installers and homeowners can confidently repair or replace their Lennox P-8-872 Gas Furnace with the necessary parts on hand.
The Lennox 37123 M.2551 Kit P-8-872 is a replacement heating and cooling system for Lennox furnaces and air handlers. This kit includes two Merv 8 filter cabinets and two filters, designed to improve indoor air quality. Here are some pros and cons that may help you make an informed decision about purchasing this product:
Pros:1. Enhanced Indoor Air Quality: The Merv 8 filters in this kit are designed to capture larger airborne particles and allergens, making it an excellent choice for people with respiratory issues or allergies.
2. Easy Installation: The kit includes pre-installed filters, making the installation process relatively straightforward for homeowners or HVAC professionals.
3. Durability: Lennox is a well-known brand with a reputation for producing high-quality heating and cooling products. This kit is no exception, as it is built to last and designed to fit seamlessly into Lennox furnaces and air handlers.
Cons:1. Limited Compatibility: This kit is specifically designed for use with Lennox furnaces and air handlers, so it may not be a viable option for those with different HVAC systems.
2. Cost: Compared to standard filters, the Merv 8 filters in this kit are more expensive. However, the increased cost may be worth it for those who prioritize improved indoor air quality.
3. Replacement Costs: Since these filters are more expensive, homeowners will need to budget for regular filter replacements.
Conclusion:The Lennox 37123 M.2551 Kit P-8-872 is an excellent choice for those with Lennox heating and cooling systems who prioritize indoor air quality. The kit's easy installation process and durability make it a worthwhile investment, despite the higher cost compared to standard filters. Ultimately, the decision to purchase this kit depends on individual priorities and budget considerations.
Recommendation:If you own a Lennox heating and cooling system and are looking to improve indoor air quality, the Lennox 37123 M.2551 Kit P-8-872 is an excellent option to consider. The benefits of using high-quality, Merv 8 filters far outweigh the costs, making this a wise investment for those who prioritize their health and comfort. However, for those with different HVAC systems or budget constraints, alternative filter options may be more suitable.
Details:
Packed and ready to ship. Unused.please see all photos.
specifications maxohvac:
- brand: Lennox
- mpn: 37123
- model: P-8-872
- part type: Kit
- location: Aaa
offer maxohvac:
- in stock #: 2
- started: december 4, 2025
- availability: in stock
- sold #: 10
- options: ship-to-home
- prices: $19.87–$55.99
- item condition:
- New – Open box
- New
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
shipping maxohvac:
- transit: 2-6 days
- type: calculated
- service: usps first class
- class: standard
- carrier: usps
returns maxohvac:
- method: money back
- paid by: seller
- policy: returns accepted
- time: 30 days
seller maxohvac:
- city: billings, montana
- rating: 100.0%
- # reviews: 13152
payments maxohvac:
- credit card: discover
- wallet: apple-pay
- other


