This national Crane swing drive gearbox is found on National stiff. Boom cranes and stand up boom trucks. In 1990s and 2000 year models. This is used to turn the Turret rotation gearbox to rotate a National stiff boom truck crane and swing the crane boom left and right .
good condition
This 1993 Peterbilt crane truck stiff boom crane with a 17 ton national crane is for sale for $65000 USD
Fits these National crane models:
500E 500E2
600E 600E2
800D
900A 900H
National crane part # 954400
Serial number # 8201900001586
With Hydraulic pump drive motor
attached and brakes system