Bitzer Compressor Serial Number Check

When you perform a Bitzer compressor serial number check, always write down the following three things together:

If you call Bitzer tech support with these three numbers, they can pull up the "Birth Certificate" of the compressor in under 60 seconds.

Different serial number ranges require different gasket kits, oil pumps, and even bolt torque settings. bitzer compressor serial number check

| Serial Number Prefix (Year/Week) | Service Kit Part Number | | :--- | :--- | | 00-05 (pre-2010) | Kit A (Original gaskets – asbestos free) | | 06-12 (2010-2012) | Kit B (Updated PTFE coating) | | 13-20 (2013-2020) | Kit C (High-temperature Viton) | | 21-24 (2021-2024) | Kit D (ECO2 compatible for CO2) |

Without a serial number check, you would order Kit D for a 2010 compressor, and the gaskets would leak immediately due to different flange surface finishes. When you perform a Bitzer compressor serial number


If you have a compressor from the 1980s or 1990s with a faded plate:


Bitzer serial numbers are 10 to 12 alphanumeric characters. A typical example: S2309B12345 If you call Bitzer tech support with these

Do not confuse the serial number with the model number. The model number (e.g., 4NCS-12.2Y) describes design configuration; the serial number identifies that exact physical unit.


You enter the serial number. It fails. Before you panic, consider these scenarios: