BOCK FKX50/980K Bus AC Compressor
MultiStar Parts – Your Source for Bus Air Conditioner Parts
The BOCK FKX50/980 K is a high-capacity 6-cylinder open-drive reciprocating compressor from the FKX series, designed specifically for large bus and rail air conditioning applications. With a swept volume of 976 cm³ and a W-cylinder arrangement, it is the largest displacement model in the BOCK FK50 series, delivering powerful cooling performance for the most demanding passenger transport environments .
CROSS-REFERENCE PART NUMBERS:
- 33277/980
- FKX50/980K
Parameter
Specification
Model
FKX50/980 K
Cylinders
6 (W-cylinder arrangement)
Bore x Stroke
65 mm x 49 mm
Swept Volume
976 cm³
Displacement (1450 rpm)
84.9 m³/h
Displacement (3500 rpm)
204.9 m³/h
Weight (without clutch)
42.3 kg
Oil Charge
2.5 L (BOCKlub E55)
Speed Range
500 – 3500 rpm
Suction Connection
2 x 35 mm (1 3/8″)
Discharge Connection
35 mm (1 3/8″)
Max. Pressure (LP/HP)
19 / 28 bar
Refrigerants
R134a, R407C, R513A
The FKX50/980 K is specifically designed for air-conditioning (K-design) in large passenger transport applications :
| Application Area | Specific Use Cases |
|---|---|
| Large City Buses | Over 12 meters, high passenger capacity |
| Intercity & Coach Buses | Long-distance transport requiring continuous, reliable cooling |
| Double-Decker Buses | High-capacity applications with demanding cooling requirements |
| Rail Vehicles | Train and railcar air conditioning systems |
Recommended Magnetic Clutches
Bock FK50 Compressor Clutch
Bock Compressor FK50 Clutch mainly used for — (Bock FKX50 660K, FKX50 775K, FKX50 830K, FKX50 980K)
→ 2A2B 280 220
→ 2A2B 280/230
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