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KOMATSU PC40-7 PC40R-7 PC40T-7 Final Drive Travel Motor With Gearbox Device 20T-60-78120 20T-60-43100 Excavator Spare Parts
Place of Origin:China
Brand Name:Belparts
Certification:ISO9001 / 2006/42/EC
Model Number:PC40-7 PC40R-7 PC40T-7
Minimum Order Quantity:1 PCS
Price:Negotiation
Payment Terms:L/C,D/A,D/P,T/T,alibab TRADE ASSURANCE,WEST UNION,PAYPAL
Supply Ability:100 PCS / Months
Product Details
Highlight:
Komatsu PC40-7 final drive motor
,excavator travel motor with gearbox
,PC40R-7 final drive spare parts
Part Number:
20T-60-78120 20T-60-43100
Model:
PC40-7 PC40R-7 PC40T-7
Condition:
New
Part Name:
Final Drive / Travel Motor With Gearbox
Appliion:
Excavator
Quality:
Aftermarket High Quality
Warranty:
12 Month
Shipment:
DHL FEDEX TNT EMS UPS / Ses / Air
Product Description
| Pos. | Part No | Qty | Parts name |
|---|---|---|---|
| 20T‑60‑78120 | 2 | TRAVEL MOTOR ASS'Y Komatsu China | |
| 1 | FUMHB‑3‑2‑2313 | 1 | BODY ASS'Y Komatsu China |
| 2 | FUSCJY305210 | 1 | SEAL,OIL Komatsu China |
| 3 | FUMHSH‑3‑2861 | 1 | SHAFT ASS'Y Komatsu China |
| 4 | 06000‑06206 | 1 | BEARING Komatsu |
| 5 | FUMHSW‑31‑2313 | 1 | SWASH PLATE ASS'Y Komatsu China |
| 5 | FUFZS‑26321031 | 1 | SWASH PLATE ASS'Y Komatsu China |
| 6 | FUPP‑M6‑8‑15 | 1 | PIN Komatsu China |
| 7 | FUMHCB‑3‑2313 | 1 | CYLINDER BARREL A. Komatsu China |
| 8 | FUPS66‑102100 | 1 | HOLDER,SHOE Komatsu China |
| 9 | FUPS66‑102000 | 1 | HOLDER,BARREL Komatsu China |
| 10 | FUFZS‑2313‑15 | 1 | SPRING Komatsu China |
| 11 | FUFZS‑2620‑22 | 2 | RETAINER Komatsu China |
| 12 | 04065‑03515 | 1 | RING,SNAP Komatsu |
| 13 | FUFZS‑2313‑05 | 1 | PLATE,VALVE Komatsu China |
| 14 | FUMHB‑3‑1‑2313 | 1 | BODY ASS'Y Komatsu China |
| 15 | 06000‑06302 | 1 | BEARING Komatsu China |
| 16 | FUPPS‑W‑6‑16 | 1 | PIN,SPRING Komatsu China |
| 17 | FUPP‑H7‑8‑15 | 1 | PIN Komatsu China |
| 18 | FUG125‑90 | 1 | O‑RING Komatsu China |
| 19 | FUTH12‑10‑30 | 5 | SCREW Komatsu China |
1.Basic Info
- Product: Final Drive Travel Motor With Gearbox Assembly
- OEM Numbers: 20T‑60‑78120, 20T‑60‑43100
- Compatible Models: KOMATSU PC40‑7, PC40R‑7, PC40T‑7 Mini Excavator
- Application: Excavator Crawler Travel System Spare Parts
- Condition: Original New
- Note: Integrated assembly combining travel motor and planetary reduction gearbox
2.Core Advantages
- OEM specification matched unit, provides reliable tractive force for different undercarriage variants
- Optimized floating seal design blocks mud and water penetration during wet site operation
- Integrated counterbalance valve delivers stable downhill travel and avoids uncontrolled track sliding
- Direct replacement for original unit, keeps machine’s factory travel performance after overhaul
3.Technical Data
- Assembly Type: Integrated final drive, axial piston travel motor + multi‑stage planetary reducer
- Function: Generate driving torque for crawler travelling, pivot turn and slope holding
- Internal Components: Piston motor parts, planetary gear sets, carrier assembly, spring‑applied wet multi‑disc parking brake, built‑in counterbalance valve
- Hydraulic Fluid: Anti‑wear hydraulic oil ISO VG46
- Gearbox Lubricant: Industrial gear oil ISO VG150
- Rated Working Pressure: 24.5 MPa
- Max Instant Peak Pressure: 27.5 MPa
- Max Output Torque: OEM standard torque for 4‑ton class mini excavator
- Brake Mode: Spring‑engaged, hydraulic‑released parking brake
- Mounting Interface: Original bolt circle, spigot dimension and oil port arrangement
- Sprocket Fitting: Matches original sprocket for crawler power transmission
- Bench Validation: Travel torque test, brake holding test, pressure holding, internal leakage and noise inspection
- Weight: 47kg approx
4.FAQ
Q1: Can this final drive fit PC40‑7, PC40R‑7 and PC40T‑7 all at once?
A1: It fits listed models, confirm old part number and undercarriage configuration prior to purchase.
Q2: What will happen if gear oil is insufficient in final drive?
A2: It will cause gear abrasion, overheating and premature failure of internal planetary components.
Q3: How to judge parking brake failure?
A3: Excavator slides on slope without load, accompanied by obvious oil leakage inside final drive.
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