Eaton RT-11710B 1302092 60-tooth 10-speed Gearbox Auxiliary Box Main Shaft Deceleration Low Gear K4302092
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Eaton RT-11710B 1302092 60-tooth 10-speed Gearbox Auxiliary Box Main Shaft Deceleration Low Gear K4302092

1302092 (also referenced as K4302092) is the 60-tooth mainshaft low-speed reduction gear for Eaton Fuller RT-11710B 10-speed heavy-duty manual Roadranger transmissions. It is installed in the auxiliary box main shaft assembly, responsible for low-range reduction power delivery, providing high torque for climbing, heavy-load start and low-speed operation. It endures heavy low-range torque loads, ensures stable low gear meshing, reduces abnormal noise, vibration and premature tooth wear, widely used on heavy-duty semi-trailer tractors and long haul trucks with Eaton RT-11710B 10-speed transmissions.
Availability:
Quantity:
  • K4302092

  • Eaton

Product parameters

Basic Info

      • OE Part No.: 1302092 / K4302092

      • Brand: Eaton Fuller

      • Product Type: Auxiliary Box Main Shaft Low Speed Reduction Gear (60 Teeth)

      • Compatible Gearbox: Eaton Fuller RT-11710B 10-speed heavy-duty manual Roadranger transmission

      • Material: High-alloy carburized quenched steel, precision machined helical/spur gear

      • Product Weight: Net weight approx 5.8kg; gross weight approx 6.2kg (with simple packaging) (reference value)

      • Function: Low range reduction gearing, deliver high torque for heavy load start-up, climbing and low speed operation

      • Applicable Vehicles: Heavy-duty semi-trailer tractors, long haul trucks fitted with Eaton RT-11710B 10-speed Roadranger transmissions

      • Category: Eaton Fuller 10-Speed Heavy Truck Transmission Auxiliary Box Core Gear Parts



  • Material & Advantages


  1. Deep carburized alloy steel construction, high surface hardness, wear resistance and heavy-load impact resistance for frequent low-range heavy-duty operation

  2. Precision tooth processing, stable meshing, reduce low-speed vibration, abnormal noise and tooth pitting/chipping damage

  3. Standard OEM dimensions, direct fit replacement for RT-11710B gearbox overhaul and repair

  4. Ensures reliable low-speed high-torque transmission, protects bearings, synchronizers and other auxiliary box components

  5. Genuine aftermarket replacement part for Eaton Roadranger 10-speed heavy-duty transmissions



Application


For Eaton RT-11710B heavy-duty transmission auxiliary box overhaul and maintenance. Replace when gear teeth show pitting, chipping, excessive wear, cracking, or abnormal noise/jitter in low range mode. Check bearings, mainshaft, synchronizer and seals during assembly; ensure proper lubrication with specified heavy-duty transmission oil; test low-range operation after installation; avoid prolonged overload low-speed driving to reduce gear fatigue damage.



Origin & Lead Time

In stock, delivery within 1–3 working days; bulk orders: 4–7 days; sea freight: 10–24 days


MOQ & Packing

MOQ: 1 piece
Warranty: 6 months, not covered for improper programming, water damage, overvoltage and unauthorized circuit modification
Packing: Anti-static bag + shockproof foam + reinforced export carton

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