TM Series Transport Refrigeration Compressors

TM Series Compressors for Transport Refrigeration

TM Series compressor sourcing belongs in transport refrigeration, not in a general truck-cab A/C category. The compressor supports the refrigeration circuit used for temperature-controlled cargo, so the original refrigeration unit, refrigerant and drive configuration must guide the replacement decision.

The category serves importers, refrigeration parts distributors and refrigerated-fleet service buyers comparing aftermarket TM16 and TM21-style compressor configurations. The reviewed supplier range is identified for refrigerated vehicles using R404a and includes both 12V and 24V clutch versions.

Wholesale TM16 and TM21 Compressor Sourcing

The source catalog includes TM16-style units with two-groove V-belt or eight-rib pulley arrangements and recorded pulley diameters of approximately 119 or 135 mm. TM21-style units include one- or two-groove V-belt drives and eight-rib configurations with recorded diameters around 137, 145 or 150 mm.

Mounting also varies. The reviewed TM16 configurations use a hanging-ear style, while the listed TM21 configurations use an inline-ear style. These catalog patterns help organize the range, but the original unit must remain the authority because a compressor may have been replaced or the refrigeration unit may use a different bracket package.

A TM family name does not confirm clutch voltage. The supplier range contains paired 12V and 24V versions with otherwise similar descriptions. A voltage mismatch can prevent correct clutch operation and should be resolved before quotation. A transport refrigeration compressor supplier should therefore review the drive and electrical evidence instead of quoting from the TM number alone.

Keep R404a Refrigeration Separate from Cab A/C

The reviewed TM16 and TM21 source entries are marked for refrigerated vehicles and R404a. That application is different from an R134a or R1234yf cab-comfort system. Do not select a compressor only because it is installed on the same truck chassis.

The refrigerant, oil specification, operating requirements and refrigeration-unit design must be checked as a system. Elecdurauto does not assume that every TM-style compressor is suitable for every refrigerated body, condenser package or temperature range.

Build a Transport Refrigeration RFQ Around the Original Unit

Send the refrigeration-unit brand and model, compressor label, TM16 or TM21 family, every readable part number, refrigerant, clutch voltage and drive details. Record the belt profile, number of grooves, measured pulley diameter and mounting arrangement, then add clear views of the hose ports and connector. If the application uses a Carrier, Thermo King or another refrigeration unit, provide that information as an application reference without assuming interchangeability.

For wholesale projects, separate 12V and 24V quantities and identify each pulley or mounting version. Also state the destination and required quantity so technical review and quotation can follow the same configuration list.

TM Series Transport Refrigeration FAQ

Is a TM Series compressor the same as a truck cab A/C compressor?

No. This category covers transport refrigeration applications. The cargo refrigeration circuit and cab-comfort circuit have different system requirements.

Can a TM16 be replaced directly with a TM21?

Do not assume direct interchange. Confirm the original family, drive arrangement, mount, refrigeration-unit requirement and system specification.

Are TM16 and TM21 compressors available in both 12V and 24V?

The reviewed supplier range contains both voltages. Specify the clutch voltage shown on the original compressor or refrigeration unit.

Does an R404a label confirm the correct compressor?

No. Refrigerant is one checkpoint. Compressor family, pulley, mounting, ports and the refrigeration-unit application must also match.

Why are there several pulley options within one TM family?

Refrigeration units can use different belt layouts and bracket packages. Match belt profile, groove count, pulley diameter and alignment to the original drive.

Is compressor oil included?

Oil type and charge must be confirmed for the specific product and refrigeration system. Do not assume the shipping condition from the category name.

Request a TM Series Configuration Review

For a TM16 or TM21 wholesale inquiry, provide the transport refrigeration unit data plate and the original compressor configuration. Elecdurauto will review the refrigerant, voltage, drive and mounting evidence against the available aftermarket TM Series range, then quote only the configuration that has been identified.