VALEO TM55 Bus AC Compressor
MultiStar Parts – Your Source for Bus Air Conditioner Parts
The VALEO TM55 is a 14-cylinder, high-capacity swash plate compressor from Valeo’s heavy-duty TM series, engineered for medium and large bus air conditioning systems. Launched alongside the TM43 and TM65, it represents a significant evolution from traditional V-type reciprocating compressors, offering substantial weight and size reductions .
CROSS-REFERENCE PART NUMBERS:
- CM108008
- 36779706073
- 40430286, 40-430286, 40-4302-86
Parameter
Specification
Model
TM55
Technology
Heavy Duty Swash Plate
Displacement
550 cm³/rev
Number of Cylinders
14 (7 double-headed pistons)
Speed Range
600 – 4000 rpm
Rotation Direction
Clockwise (viewed from clutch)
Bore x Stroke
38.5 mm x 33.7 mm
Weight (without clutch)
18.1 kg
Dimensions (L x W x H)
341 x 194 x 294 mm
Oil Charge
ZXL 100PG PAG Oil – 1500 cc (POE option available)
Refrigerant
HFC-134a
Mounting
Direct (side or base)
🚍 Applications & OEM Fitment
The TM55 is specifically designed for medium and large-sized bus air-conditioning applications :
| Application Area | Specific Use Cases |
|---|---|
| City Buses | Public transit buses requiring continuous, reliable cooling |
| Tourist / Intercity Coaches | Long-distance passenger transport with high cooling capacity demands |
| School Buses | Heavy-duty applications requiring durability and efficiency |
Clutch Options
The TM55 can be fitted with various magnetic clutches to match different drive belt configurations :
| Clutch Type | Pulley Diameter | Grooves | Voltage | Application Note |
|---|---|---|---|---|
| V-groove | 202 mm | 2 | 24V | Traditional V-belt drive |
| Multi-groove | 187 mm | – | 24V | Poly-V / serpentine belt drive |
| Multi-groove | 196 mm | 8 | 24V | 8PK serpentine belt |
The magnetic clutch is housing-mounted rather than shaft-mounted, reducing vibration and the risk of clutch or shaft issues. Valeo’s clutch design also regulates compressor capacity, eliminating the need for unloader valves .
Multistar Parts Co., Ltd. – Your trusted partner for bus air conditioning compressors and complete HVAC spare parts. OEM-grade quality, competitive pricing, global shipping from China.