York S1-373-27956-419 Indoor Coil

The York S1-373-27956-419 Indoor A-Flex Coil is a 3-row York Source 1 indoor coil, 24 in. high by 21 in. wide, built as an A-coil: two slabs leaned together in an A shape over a cream-colored drain pan with black end blocks. The data label on the coil prints the part number run together without dashes, S1-37327956419, and the photo shows a green sticker and a brass fitting with a red cap. Older cross-references may show this coil under S1-373-27956-019, so either number leads to the same place.

Three numbers match a replacement coil: rows, height and width. Rows is how many tube rows the air passes through, and height and width describe the face of the coil. This coil is 3 rows, 24 in. high and 21 in. wide. The extra row gives it more heat-transfer surface than a 2-row coil of similar size, at the cost of more air-side resistance, so it belongs with a blower and duct system that was designed for a three-row coil. Our carried S1-373-27956-417 is also 3 rows, but it is 22 in. high by 24 in. wide, which makes the S1-373-27956-419 2 in. taller and 3 in. narrower.

An A-coil sits like a peaked roof over its drain pan, and the seal between the coil and the plenum or casing matters. Air that slips around the coil instead of through it is lost capacity, so seal the edges and make sure the drain pan and condensate line are clear and pitched to drain. Leave the cap on the brass fitting until you are ready to connect, pressure test and evacuate the system, and replace the filter drier while the system is open. Use the refrigerant and metering device the system was designed for. This coil ships by truck, so inspect it for bent fins before you sign. Send us the model and serial number from your equipment and we will confirm the match before you buy.

Key Benefits

• Three-Row A-Coil: 3 rows with a 24 in. by 21 in. face from the York Source 1 Indoor A-Flex line.
• Searchable Both Ways: The part number shows up as S1-373-27956-419 and, on the coil's data label, as S1-37327956419, so either spelling finds it.
• Older Number Covered: References to S1-373-27956-019 lead to S1-373-27956-419, so the number on old paperwork still finds the part.
• Drain Pan Included As Pictured: A cream-colored drain pan with black end blocks is on the coil, so condensate handling comes with the assembly.

Common Questions

• What size is the S1-373-27956-419? It is 3 rows, 24 in. high and 21 in. wide, a York Source 1 Indoor A-Flex A-coil.
• Why does the label read S1-37327956419? That is the same part number printed without dashes. The label on the coil reads S1-37327956419, which is S1-373-27956-419 written as one string.
• How does this coil ship? It ships by truck freight. Have someone on hand to receive it and inspect the fins and tubing before signing for it.

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.