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Types Swept volume ccm Former types
FKX40/390 K 385 FKX30/325 K
FKX40/390 K1 385
FKX40/390 N 385 FKX30/325 N
FK vehicle compressor for bus and train air-conditioning

Bock vehicle compressors in the FK series are the result of decades of experience in mobile refrigeration. Particularly when it comes to bus air-conditioning, they are the standard of all renowned manufacturers.

Unsurpassed lightweight, compact and robust desigh with a large speed range - these are just a few of the outstanding features of this unique product range with 2, 4 and 6 cylinder compressors. Tailor-made to the individual application with many different design versions.

One special innovation constitutes the so-called K version with a unique valve plate system for the toughest demands in mobile air-conditioning.

N version
Compressor with universal valve plate system for all ranges of application.

K version
Compressor with unique valve plate system for the toughest demands in bus air-conditioning.

K1 version
Housing variant with K valve plate system and additional mounting threads for direct attachment to the vehicle engine.