TYC 20122 A/C Compressor

TYC 20122 A/C Compressor for Mercedes-Benz

The TYC 20122 A/C compressor is built for Mercedes-Benz GL350, ML350, R350, GL320, ML320, and R320 applications from 2007-2012. It is specified for R134a or R1234yf refrigerant systems and uses a 12V coil with a 1-pin connector for direct-fit service on the listed vehicles.

Key Features

• Part number: TYC 20122
• Compatible with Mercedes-Benz GL350, ML350, R350, GL320, ML320, and R320 applications
• Refrigerant type: R134a or R1234yf
• 12V coil voltage with 1-pin connector
• Electronic control valve included
• Pulley wheel grooves: 8
• Oil type: PAG46YF
• Oil quantity: 4 oz
• O-ring quantity: 2
• 2-year warranty

Detailed Description

TYC 20122 is an A/C compressor for Mercedes-Benz SUV and crossover applications that require an 8-groove pulley, electronic control valve, and 12V electrical connection. It is listed for 2007-2009 Mercedes-Benz GL320, ML320, and R320, as well as 2010-2012 Mercedes-Benz GL350, ML350, and R350. This compressor is configured for R134a or R1234yf refrigerant systems and uses PAG46YF oil for service on the specified applications. This part cross-references Four Seasons 68319 for the same application.

What This Compressor Helps Address

• Weak or non-functioning cabin cooling
• Noisy compressor operation
• Refrigerant circulation problems
• Compressor clutch or control issues on the listed Mercedes-Benz models
• Restoring A/C system performance after compressor failure

Installation Notes and Tips

• Verify vehicle refrigerant type before installation: R134a or R1234yf.
• Confirm the 1-pin connector and 12V coil match the original unit.
• Check pulley groove count and belt alignment before final assembly.
• Replace and lubricate seals as needed during A/C service.
• Follow proper evacuation, recharge, and leak-check procedures after installation.

Quality Assurance

TYC 20122 includes a 2-year warranty. The compressor is built to match the listed Mercedes-Benz fitments and service specifications, including electronic control valve operation and PAG46YF oiling requirements.