Stellar Industries 38198 Rotation Worm for 14528 Crane

If you’re unsure whether this part is compatible with your truck or equipment, please contact us to confirm fitment before purchasing.

The Stellar Industries 38198 Worm is a replacement rotation-drive component for compatible Stellar 14528 telescopic service cranes equipped with a Gear Products rotation assembly. It corresponds to Gear Products component number 170-10072-1.

This precision-machined worm transfers power from the hydraulic swing motor to the crane’s rotation gear. Replacing a worn or damaged worm helps restore smooth crane rotation, reduce excessive backlash, and protect the remaining rotation-system components.

What This Part Is Used For

The Stellar 38198 worm drives the rotation gear on compatible Stellar 14528 cranes. It converts the swing motor’s output into controlled clockwise and counterclockwise crane rotation for accurate boom and load positioning.

Common Reasons For Replacement

Crane rotation is jerky or uneven
Excessive backlash in the rotation system
Worm teeth are worn, chipped, or broken
Grinding or clicking occurs during rotation
Crane binds at certain rotation positions
Boom rotates slowly despite proper hydraulic pressure
Worm damaged by bearing failure
Rotation assembly operated without adequate lubrication

Key Features

Stellar Industries part number 38198
Gear Products part number 170-10072-1
Rotation-drive worm for Stellar 14528 cranes
Transfers swing-motor power to the rotation gear
Supports clockwise and counterclockwise crane movement
Precision-machined heavy-duty gear component
Helps restore smooth and controlled crane rotation
Use Stellar grease part number 4460 for required lubrication