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Slewing reduction gearbox for the Caterpillar 390F and 390F L large excavators. Also referenced under part number 378-9557.
Swing reduction gearbox (slew reducer) for Caterpillar E312D and E313D excavators. Transmits swing motor torque to the upper structure rotation.
Swing reduction gearbox for Caterpillar 315C, 315D, 318D, and 318D2 excavators. Multiple interchangeable part numbers indicate a long supersession chain.
Caterpillar swing reduction gearbox (slew gearbox) for the E306E Mini Excavator, part number 486-1587 (also 4861587).