by ep | Mar 26, 2026 | Brand & Model Guide
The CAT 320C and 320D swing gearbox — both catalogued under part number 148-4644 — is one of the most frequently sourced aftermarket swing drive components for Caterpillar excavators. The PC200-6 is the Komatsu benchmark; the CAT 320 is the Caterpillar equivalent in... by ep | Mar 26, 2026 | Brand & Model Guide
The Komatsu PC200-6 swing gearbox is one of the most sourced excavator swing drive components in the aftermarket — partly because the PC200-6 is one of the best-selling 20-tonne excavators ever built, and partly because its swing gearbox has a finite service life... by ep | Mar 25, 2026 | Swing Gearbox Blogs
An excavator swing gearbox replacement is one of the highest-priority repairs a fleet owner or repair shop will face. When the swing gearbox fails, the machine cannot rotate its upper structure — cab, boom, and arm stay locked in one position. That means zero...