Lennox 51M16 - (LB-86986) Nylon Elbow, 1/4" Barb x 0.42" Snap-In, Black
The Lennox 51M16 Nylon Elbow is a high-quality OEM HVAC component engineered to provide a secure and efficient connection between tubing lines in air handling systems. Designed with a 90-degree bend, this elbow fitting helps streamline fluid or air routing in confined or compact areas without kinking or stressing the line.
Manufactured from rugged black nylon, this fitting is both lightweight and corrosion-resistant, making it ideal for long-term use in residential or commercial HVAC applications. The nylon material provides excellent resistance to oils, chemicals, and temperature fluctuations, ensuring consistent reliability in a variety of operating conditions.
This elbow features a 1/4-inch barbed end, which offers a tight grip on flexible tubing, minimizing the risk of leaks or disconnections. The opposite end uses a 0.42-inch snap-in design for quick installation into compatible panel holes or housings, enabling fast, tool-free mounting and removal.
Technical Specifications:
- Lennox Part Number: 51M16
- Manufacturer Part Number: LB-86986
- Material: Black nylon (thermoplastic)
- Connection A: 1/4" barb (tube side)
- Connection B: 0.42" snap-in (panel mount)
- Angle: 90° elbow
- Color: Black
- Function: Directs tubing at a right angle while providing a secure mechanical and fluid seal
- Installation Method: Push-in/snap-in with barbed retention
Common Applications:
- Condensate drain routing
- Pressure switch tubing
- Evaporator coil and blower compartment connections
- General fluid or air tubing used in Lennox HVAC systems
This genuine Lennox elbow is used in a range of systems to ensure optimized flow and tight system integration, especially where space-saving and reliability are critical. Whether replacing a worn component or completing a new installation, the 51M16 offers dependable performance and OEM quality.
Why Buy from Beenimax:
Beenimax carries only original Lennox components to ensure the highest standard of system compatibility and performance. We offer quick delivery, competitive pricing, and knowledgeable customer support to serve HVAC professionals and contractors with confidence.