Holset Air Compressors

Fleet Products stocks Holset air compressors engineered for high-output performance in truck brake systems. Ideal for Cummins-powered applications, Holset compressors are built for durability, pressure efficiency, and serviceability. ALL QE MODEL COMPRESSORS REQUIRE A 4 LINE DRYER 065647WL-G EXTRA LINE BY ITSELF PART 500457.

Suffixes like D, M, and C identify the engine platform—Detroit Diesel, Mack, and Cummins—and when followed by E, they indicate an E-Type unloader configuration for that engine series. Meanwhile, prefixes such as SS (Super Single), ST (Super Twin), and QT (Quiet Economy) define the compressor family before the model number.

Model Number Description CFM
SS191 Single Cylinder (Midland EL-850 equivalent) 8.5 CFM
QE296 Single Cylinder 9.8 CFM
QE296/SS296 Single Cylinder (High output varient) 13.2 CFM
QE338/SS338 Single Cylinder 15 CFM
ST676 Twin Cylinder 30 CFM
ST773 Twin Cylinder 34 CFM

 

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