Premium Swing Gearbox 22B-26-01000 Drop Right In For Komatsu Pc128Us-2 Pc138Us-2 Pc138Uslc-2 Pc138Us-2E Heavy Duty Rig Built Tough Top Shelf Quality Straight Fire Durability Kick Up Some Dirt Today

Single Komatsu Excavator Swing Gearbox Dropin Kit
✔️ Heavy Duty 22B-26-01000 fits PC128US and PC138US frames

This single swing drive powers the rotating upper cab on komatsu rigs. Swap it in direct over worn units to restore full turning torque when you need to kick up dirt and handle heavy grading shifts.

✅ Hardened steel internals chew through mud and rock
✅ Quick bolt pattern drops right in without grinding
✅ Greased bearings spin smooth across hot and cold days
✅ One piece per package handles full machine rebuilds solo

💡 What wears out excavator gear reducers fastest?

Constant torque shocks grind teeth down, so stocking a spare handy unit keeps crews moving.

- Abrasive dust eats past seals over time
- Low oil levels starve sliding bushings
- Sudden impacts snap output shaft pins
- Rust buildup grabs rollers in place
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