Heavy Duty Workhorse Travel Final Drive Gearbox With Brushless Motor 161303A1 Built Different Replacement Kit For Case 9020 9020B And Sumitomo SH120 SH135 Excavators

Single Pack Travel Final Drive Gearbox Kit For Excavator Shops
✔️ 161303A1 Direct Replacement Travel Motor Assembly Unit

This gear assembly swaps out worn drive components right back into place on digging rigs. Builders run these units on active sites where constant track rotation stresses transmission parts. They bolt straight onto CASE and Sumitomo frames to bring back smooth movement fast.

✅ Direct drop in fitment matches OEM mounting patterns exactly
✅ Sealed internal bearings resist dust and mud buildup over time
✅ Rebuilds lost track tension and restores full hydraulic flow
✅ Fits CASE 9020 9020B and Sumitomo SH120 SH135 excavator frames

💡 How does a rebuilt travel final drive improve track traction on construction rigs Operators pull this handy fix when tracks slip or slow rotation kills digging speed. Swapping in the unit clears debris from the drive path and locks torque back into the undercarriage. - Matched splines engage input shafts without stripping threads - Heat treated housings absorb heavy shock loads during trench work - Grease packed gears reduce friction and lower fluid change intervals - Tight seals keep abrasive grit out while keeping pressure stable

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