Lennox 16K07 Coil Assembly

The Lennox 16K07 Repair Coil Assembly is the factory replacement evaporator coil for the Lennox CBA25UH and CBA25UHV upflow/horizontal air handlers in the CBA25UH/V-060 size. Reading the Lennox model number, CB is the air handler, A is the aluminum coil on R-410A, and 060 is the nominal 5 ton size. The 16K07 catalog number is also listed under manufacturer number 618394-07, so keep both numbers handy when searching older parts records or an existing coil's paperwork.

The coil in this series is Lennox's own Quantum coil, built from enhanced aluminum alloy tube and an enhanced fin surface. On the 048 and 060 sizes it is a twin coil assembled in an "A" configuration, which puts a lot of surface area in a compact cabinet while keeping air resistance low. The refrigerant connections are copper sweat fittings on both the liquid line and suction line for brazing, and the series is designed for R-410A systems that meter refrigerant with an expansion valve (TXV), on both air conditioner and heat pump matches. Every CBA25UH size has its own repair coil: 16K01 for the CBA25UH/V-018, 16K02 for the CBA25UH/V-024, 16K03 for the CBA25UH/V-030, 16K04 for the CBA25UH/V-036, 16K05 for the CBA25UH/V-042 and 16K06 for the CBA25UH/V-048. Those are separate parts and will not substitute for the 16K07.

Before condemning a coil, confirm the leak. A low-charge system with oil staining at the tube joints or hairpin bends usually points to the coil, but verify it with nitrogen pressure, bubble solution and an electronic leak detector, and rule out a frozen coil caused by a dirty air filter, weak blower airflow or a plugged condensate drain. When the replacement goes in, recover the refrigerant, flow dry nitrogen while brazing, shield the expansion valve and cabinet from heat, and install a new filter drier. Pressure test, pull a deep vacuum, then weigh in the charge with a scale to the outdoor unit's data plate. Reseat the drain pan, drip shields and seal plates so condensate drains cleanly and no air bypasses the coil.

Key Benefits

• Exact-Size Match: Built for the CBA25UH/V-060 5 ton air handler, so the coil geometry and refrigerant connections line up with the original.
• OEM Quantum Coil Design: Enhanced aluminum alloy tube and enhanced fin construction in the twin "A" configuration used by Lennox on the 060 size.
• Brazed Copper Connections: Sweat fittings on the liquid and suction lines make for a standard R-410A field installation.
• Easy Cross-Reference: Catalog number 16K07 and manufacturer number 618394-07 let you match the part to Lennox records and service literature.

Common Questions

• What is the Lennox 16K07 used for? It replaces a leaking or damaged evaporator coil in a CBA25UH/V-060 5 ton air handler.
• Will the 16K07 fit every CBA25UH air handler? No. Each size has its own repair coil, from 16K01 through 16K06 for the smaller sizes, so confirm the full model number and serial number on the data plate before ordering.
• What is the manufacturer number for the 16K07? The associated number is 618394-07.

This item is not eligible for free shipping and must be shipped via trucking. Please contact us for a freight quote.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.